OPERATION INSTRUCTIONS FOR Type 7.1 Vacuum Interrupter Control 1 Phase with EZset Option
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1 OPERATION INSTRUCTIONS FOR Type 7.1 Vacuum Interrupter Control 1 Phase with EZset Option GWI Rev. 1 August, 2014 Supersedes Rev. 0 Dated April, 2013 Section Page 1. Introduction General Qualified Persons Shipment Inspection Safety Information & Precautions Safety Alert Messages Following Safety Instructions Replacement Instruction and Labels Product Description and Operations General Powering the Control External Trip Input (optional) RS485 Communication VI Control Settings Software (VICSS) Setup General Installing the Software Uninstalling the Software Installing Cable Drivers for Windows XP Installing Cable Drivers for Windows Vista, 7, & Connecting the Communication Cable Using the VI Control Settings Software Section Page 5.1 Startup Menus Software Settings Operation Load Current VI Control Information Protection Setting Group Sequence of Events Overcurrent Protection Settings Time/Current Characteristic Curves (TCC) Phase Minimum Trip Phase Instantaneous Trip Multiplier Phase Time Delay Phase Minimum Response Time Phase Inrush Restraint Product Specification Appendix A: RS 485 MODBUS - RTU PROTOCOL Appendix B: Sequence of Events Format Appendix C: Print Format Appendix D: Factory Default Settings This information is transmitted by G&W Electric Co. and accepted by you subject to the following understanding and agreement: By accepting these instructions and any included drawings you agree that all rights to the drawing and information contained herein, as well as the proprietary and novel features of the subject matter, are reserved by G&W Electric Co. and that devices embodying such features or information derived from these disclosures will not be manufactured by you or disclosed to others without the expressed written consent of G&W Electric Co. These drawings and information contained herein are and remain the property of G&W Electric Co. and are not to be copied, reproduced or disclosed to others without the expressed written consent of G&W Electric Co. Page 1 G&W ELECTRIC CO.
2 1. Introduction 1.1 General This document is intended to provide the user with necessary information to properly receive, operate, and maintain the 1-phase G&W Type 7.1 VI Controls with EZset setting option. If, after reviewing the information contained herein, you should have any questions, please contact G&W technical support. Read these Instructions Keep these Instructions How to Contact G&W Read and understand the contents of this document and follow all locally approved procedures and safety practices before installing, operating or maintaining this equipment. Be sure to read and understand the Safety Information. This document is a permanent part of your G&W product. Keep it in a safe location where it can be readily available and referred to as necessary. By Phone: By Fax: For Technical Support: Fax: Mail: Internet: , Monday through Friday, 8:00 AM to 5:00 PM Central Time info@gwelec.com Aftermarket.support@gwelec.com 305 W. Crossroads Parkway, Bolingbrook, Illinois 60440, USA To find your local G&W Representative visit our Web site: Qualified Persons WARNING The equipment covered by this document is intended to be installed, operated and maintained by qualified persons who are trained in the installation, operation and maintenance of electric power distribution equipment along with the associated hazards. A qualified person has been trained and is competent: - To de-energize, clear and tag circuits and equipment in accordance with established safety procedures. - To distinguish between live parts from non-live parts of the equipment. - In the proper use of insulated tools, wears protective equipment such as rubber gloves, hard hat, safety glasses, flash-clothes, etc. in accordance with established safety practices and is trained in the care of such equipment. - As in certified in rendering first aid, especially in the technique of removing a person in contact with a live circuit and in applying cardiopulmonary respiration. These instructions are intended only for qualified persons and are not intended as a substitute for adequate training and experience in safety procedures for this type of equipment. 1.3 Shipment Inspection Examine the crated equipment carefully for any damage that may have occurred in transit. If damage is found, a claim must be filed at once with the transportation company. Uncrate and remove packing as soon as possible after receiving the equipment. Examine the equipment carefully for any hidden damage that may have occurred in transit and was previously undetected. If damage is found, a claim should be filed at once with the transportation company. Page 2 GWI Rev. 1
3 2. Safety Information & Precautions 2.1 Safety Alert Messages The following is important safety information. For safe installation and operation, be sure to read and understand all danger, warning and caution information. The various types of safety alert messages are described below: DANGER DANGER - Indicates an imminently hazardous situation, which, if not avoided, will result in death or serious injury. WARNING WARNING - Indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury. CAUTION CAUTION - Indicates a potentially hazardous situation, which, if not avoided, may result in minor or moderate injury. May also be used to alert against unsafe practices. 2.2 Following Safety Instructions Carefully read all safety messages in this manual and on your equipment. Keep safety signs in good condition. Replace missing or damaged safety signs. Keep your equipment in proper working condition. Unauthorized modifications to the equipment may impair the function and/or safety and effect equipment life. If you do not understand any part of these safety instructions and need assistance, contact your G&W representative or G&W Customer Service. 2.3 Replacement Instruction and Labels Replacement instructions and safety labels are available from G&W. To obtain them, please contact G&W Technical Support. Page 3 GWI Rev. 1
4 3. Product Description and Operations WARNING Before setting, operating, or maintaining this equipment, carefully read and understand the contents of this guide. Improper installation, handling, or maintenance can result in death, severe personal injury, and/or equipment damage. WARNING This equipment is not intended to protect human life. Follow all locally approved procedures and safety practices when installing or operating this equipment. Failure to comply may result in death, severe personal injury, and/or equipment damage. CAUTION The Type Control can be used as a self powered device, which uses the current flowing through the current transformers of the switchgear for power. The amount of current flowing through the switchgear will dictate the power up time. Contact G&W Technical Support for more information. 3.1 General Type 7.1 is designed for operation with a G&W Solid Dielectric insulated Vacuum Interrupter single phase mechanism. The control is microprocessor based, and will trip open the Vacuum Interrupter mechanism(s) after a time delay corresponding to the monitored current. The device monitors the current on single phase. If the current exceeds the pre-selected limit for a given period of time, that phase, will be tripped as defined by the control settings. CAUTION These controls are designed to work exclusively with G&W Vacuum Interrupter mechanisms. Use of these controls for any other purpose may cause damage to the control or other equipment. Each control is a stand-alone unit and does not require any maintenance. The unit is powered by the internal current transformer that measures the phase current. The control does not require any external power supply or battery for normal over current detection and operation. Type 7.1 controls are mounted inside of the Solid Dielectric mechanism cover eliminating the need for a separate enclosure and cabling. 3.2 Powering the Control There are two ways to power the controls primary current flowing through the current transformers or through an external power input, which must be factory ordered. For the Type 7 that are powered by the phase current(s), the amount of current flowing through the current transformers will dictate the power up time Powering from Primary Current The current levels needed to power the control are shown in the table below. Page 4 GWI Rev. 1
5 CT Ratio Primary Current Available on Any 1 Phase 500:1 15 Amps 1000:1 25 Amps Table 1: Amount of Primary Current Necessary to power the control External Power Input (optional) When there is insufficient primary current on the CTs (see table 1), an external power supply can be used to power the control. This is required when utilizing the external trip input. The external power input accepts a DC voltage between 12 and 24VDC. The maximum current draw on this input is 1.5A when a trip is occurring. Type 7.1 controls must be factory ordered with this option. Access to the external power connections is through a hardwired cable that is sealed to the switch housing to maintain submersibility. 3.3 External Trip Input (optional) The controls can be wired to trip the Vacuum Interrupter mechanism using external trip input. The external trip input is a dry contact and requires that the external power input be active. When a closed contact is momentarily applied, the control sends a trip signal to all phases of the Vacuum Interrupter Mechanism. This could be done from a source such as a relay or RTU. If the external trip contact is latched closed, it must be reset (opened) before the next external trip can occur. Type 7.1 controls must be factory ordered with this option. Access to the external trip connections is through a hardwired cable that is sealed to the switch housing to maintain submersibility. 3.4 RS485 Communication The Type 7.1 control is capable of communicating through a serial line - RS485 when provided with external power. This option must be factory ordered. The software driver uses the MODBUS RTU protocol. This protocol is provided with sum control, timeout and frame checking. The following actions can be performed when the control is not performing a timing trip and if powered. -reading of load current on all three phases -reading cause of trip and fault current -reading of present parameters -setting new parameters The default factory settings for communications are: interface RS485, address 1. Refer to Appendix A for protocol information. Page 5 GWI Rev. 1
6 4. VI Control Settings Software (VICSS) Setup 4.1 General Type 7.1 controls are programmed using the VI control Settings Software (VICSS). The software comes with a programming kit that includes a communication cable and a CD with software and drivers for the cable. The VI Control Settings Software communicates via a USB cable using MODBUS protocol. The software is available free of charge by contacting G&W technical support. A proprietary cable (ordered separately) is needed to utilize the software to communicate with the controls. 4.2 Installing the Software The VICSS application can be installed on a desktop or laptop PC (this software will not work on the Apple Operating system). The minimum requirements are: One USB port Windows 32-bit and 64-bit based operating system (XP, Vista, 7 & 8) To start the installation process, insert the VI Control Settings Software installation CD into the computer. Access the folder that is named VICSS Installer. Double click the setup.exe file in the folder. Follow the instructions on the screen to complete the installation. The installation process will overwrite any older versions of the VICSS software but not other G&W VI control settings software such as TMC. 4.3 Uninstalling the Software To uninstall the application, access the control panel on the PC and choose the appropriate option to uninstall the application. 4.4 Installing Cable Drivers for Windows XP Two drivers must be installed (both included on CD). The first driver installation is for the communication cable protocol. Insert the CD provided with these instructions. Connect the USB connector on the communication cable to a USB port. CAUTION Do not edit ANY files in the installation folder. Editing of these files will corrupt the data for the VI Control Settings Software and prevent reading settings or programming the control. Page 6 GWI Rev. 1
7 Navigate to the device manager. Locate G&W TMC USB Link, right click, and select Update Driver. Select No, not as this time and click Next. Page 7 GWI Rev. 1
8 Select Install from a list or specific location (Advanced) and click Next. Check Include this location in the search: and click Browse. Navigate to the CD, and select CustomCP210xDriverInstall, click OK and then Next. Page 8 GWI Rev. 1
9 Click Continue Anyway. Click Finish. Next install the driver for the virtual COM port. Navigate back to the Device Manager. Locate G&W TMC USB Link, right click, and click Update Driver again. Page 9 GWI Rev. 1
10 Select No, not as this time and click Next. Select Install from a list or specific location (Advanced) and click Next. Check Include this location in the search: and click Browse. Page 10 GWI Rev. 1
11 Navigate to the CD, and select CustomCP210xDriverInstall, click OK and then Next. Click Continue Anyway on the next screen, and then Finish. Click Finish. The driver installation is now complete and the VI Control Settings Software can communicate with the VI Control. Page 11 GWI Rev. 1
12 4.5 Installing Cable Drivers for Windows Vista, 7, & 8 Two drivers must be installed for the cable to communicate. Insert the CD provided with these instructions and navigate to run CP210x_VCP_Win_XP_S2K3_Vista_7.EXE. Click Next to start the installation. Click I Accept the terms of the license agreement and click Next. If it is desired to install drivers to different location, click Browse and choose the location. Click Next to continue. Page 12 GWI Rev. 1
13 Click Install to begin the installation. Click Finish to begin the second part of the driver installation. Click Install to continue. Wait while it scans for devices and click OK when complete. Page 13 GWI Rev. 1
14 Connect the USB connector on the communication cable to the PC s USB port. Navigate to the device manager. Locate G&W TMC USB Link, right click, and select Update Driver Software. Page 14 GWI Rev. 1
15 Select Browse my computer for driver software. Select Let me pick from a list of device drivers on my computer. Locate Ports (COM & LPT), select it, and click Next. Page 15 GWI Rev. 1
16 Under Manufacturer, locate Silicon Laboratories and select it. Under Model, locate Silicon Labs CP210x USB to UART Bridge and Click Next. Click Yes to continue. Click Close to finish the installation. The driver installation is now complete and the VI Control Settings Software can communicate with the VI Control. Page 16 GWI Rev. 1
17 4.6 Connecting the Communication Cable The figure below shows a typical Trident Solid Dielectric fault interrupter switch with Type 7.1 control. It also shows the location of the communication port for use with the VI Control Settings software. Programming Port Figure 4.1 Location of Communication Port Connect the USB side of the programming cable to the PC and connect the Brad Harrison connector side of the cable to its mating receptacle on the switch. The connector is keyed and will only go on one way. A 6ft extension cable is available as an option. This extension cable can be permanently attached to the communication port on the switch. A cap provided with the cable must be installed and hand-tightened when not in use to maintain submersibility. CAUTION Replace the sealing cap on the programming port. Failure to replace the sealing cap may result in the loss of sealing integrity causing damage and/or misoperation of the control. CAUTION Do not over tighten the sealing cap, hand tighten only. Over tightening sealing cap may damage the sealing surface resulting in loss of sealing integrity causing damage and/or misoperation of the control. CAUTION Disable external trip operation while programming the control. The control will be powered up when using the laptop programming kit. Any closure of an external trip contact will cause the control to send a trip signal to the vacuum fault interrupters. CAUTION Do not attach any other equipment to the programming port. Attaching any other equipment to the programming port may cause damage and/or misoperation of the trip module. Page 17 GWI Rev. 1
18 5. Using the VI Control Settings Software CAUTION Over current protection is disabled during programming. Unexpected system operations may occur as upstream devices become responsible for over current protection. 5.1 Startup Once the software is successfully installed, double click on the VICSS icon to start the program. The start-up screen shown in Figure 5.1 should open. Figure 5.1 Start-up Screen 5.2 Menus Figure 5.2 shows the available drop down menus in the VICSS software. Each of these menus is explained in detailed in following section. File Operation TCC Help New Settings Open Settings Save Settings Print Exit Connect Disconnect Set Time and Date Set Modbus Address Password Import from CSV File Export to CSV File List Selection Retrieve from VI Control Upgrade Firmware Software Version Figure 5.2 Software Menu Tree Page 18 GWI Rev. 1
19 5.2.1 File Menu New Settings Choose New Settings to open a screen with default settings. Figure 5.3 New Settings Screen Select 1 Phase for number of protected phases, appropriate CT Ratio and EZset settings option and click OK. Refer to the label that is installed on the outside of the switch or the customer drawing for CT ratio information Open Settings Choose Open Settings to select an existing settings file. Figure 5.4 Open Settings Screen Navigate to the directory of the settings file you wish to open, and click open. The settings file is saved as a.vi file Save Settings Choose Save Settings to save the settings file. This will prompt for a location in which to save the settings file. Type a name for the file and click save. Page 19 GWI Rev. 1
20 Figure 5.5 Save Settings Screen Print Choose Print to print the displayed settings file. Choose the appropriate setup options and click OK. An example for printed settings is shown in Appendix C. Figure 5.6 Print Exit Choose Exit the close the program. If there are any unsaved changes, the program will prompt to save these before closing Operation Menu Connect Choose Connect to set the parameters and start communication with the VI control. Page 20 GWI Rev. 1
21 Figure 5.7 Connect Window Confirm the serial communication port and modbus address are correct before connecting. To determine which Communication Port the USB Programming cable uses, utilize the Device Manager built into Windows. Access to the Device Manager can vary depending on the version of Windows being used. Once at the Device Manager, the COM port to be used is listed under Ports (COM & LPT) as G&W TMC Link Cable for Windows XP and Silicon Labs CP210x USB to UART Bridge for Windows Vista and 7 & 8. Figure 5.8 Device Manager Record the COM port number (for example, COM6, as shown in Figure 5.8), listed next to Silicon Labs CP210X USB to UART Bridge (Windows 7, 8 & Vista) or G&W TMC Link (Windows XP) and choose this port from the drop-down menu in the VI Control Settings Software. The modbus address is not applicable to Type 7.1 VI Control. The factory default is 1 and must not be changed for proper communication. Click connect to communicate with the VI Control. When connected, the connection status in the software will change from OFFLINE to ONLINE Disconnect Choose Disconnect to disconnect the software from the VI Control. The connection status should change from ONLINE to OFFLINE. Page 21 GWI Rev. 1
22 Set Time and Date Choose Set Time and Date to change the current time and date on the VI Control. The VI Control is set to Eastern Standard Time (EST) by factory default. Choose the required date and time and hit Send button to update the time in the VI Control. The date and time in this window will automatically populate with the time on the PC connected to the VI Control Set Modbus Address Figure 5.9 Set Time and Date The modbus address (Figure 5.7) cannot be changed in the Type 7.1 VI Control. The factory default is Password This can be used to change or disable the password. VI Controls ship from the factory with a default password of GWVI and the password enabled. Password is case sensitive. To disable the password, uncheck the box in front of Enable. To change the password, type in the old password (factory default is GWVI ) and then enter the new password TCC Menu Figure 5.10 Password Configuration The options under this menu are not available with the EZset settings option. If you would like to upgrade the unit to have these options, please contact local G&W representative and ask for Plus settings option. Page 22 GWI Rev. 1
23 5.2.4 Help Menu Upgrade Firmware Figure 5.11 Firmware Upgrade The VI Control includes the ability to upgrade to the control firmware using this menu. G&W will notify users when firmware upgrade options are available. Contact G&W technical support for information about firmware upgrades Software Version The software version is available from this screen. Figure 5.12 Software Version Page 23 GWI Rev. 1
24 5.3 Software Settings Device Information Figure 5.13 Device Information The VI Control Settings Software allows the user to enter control specific identification information which will appear while communicating with, retrieving settings from, and downloading events from specific VI Controls. Each field is stored in the non-volatile memory of the control for future use Device ID This parameter can be 15 characters long Feeder Name Other This parameter can be 15 characters long. This parameter can be 15 characters long Connection Status This field is used to display the status of the connection between VI Control Settings Software and the VI control. The status will be displayed as either ONLINE or OFFLINE. ONLINE indicates that the VI Control Settings Software is currently communicating with the VI Control. OFFLINE indicates that communication has not been established between the VI Control Settings Software and the control Settings This parameter displays the status of settings currently displayed in the software. Options include: New - settings have been created and have not yet been sent to the VI Control or saved Modified - the displayed settings have been modified and have not been saved From File the displayed settings were opened from a file stored on the PC From VI Control the displayed settings were read from a VI control and have not yet been saved OR modified Note: When the VI Control Settings Software is displaying From File in the settings field, the settings shown may or may not be different than the settings stored in the VI Control. Page 24 GWI Rev. 1
25 5.4 Operation Figure 5.14 Operation section Retrieve Send Pressing the Retrieve button will retrieve all overcurrent protection settings and control status information from the VI Control and will populate the VI Control Settings Software fields. Checking the Auto button will automatically retrieve the Block GF Trip handle status (optional), load current and VI Control Information every 15 seconds. Pressing the Send button, sends all overcurrent protections setting and the Device Information fields to the VI control. If the password is enabled, a pop-up window will appear to prompt for the password to be entered before continuing Auto Figure 5.15 Password prompt for sending settings Type in the password and click Ok. Refer to password section for more information. Checking the Auto button will automatically retrieve the Block GF Trip handle status (optional), load current and VI Control Information every 15 seconds Block All Trips (Optional) When the VI Control is factory ordered with this option, the text will show in Black. If the VI control is not equipped with this option, the text will be grayed out and the box cannot be checked. Checking this box turns off the VI Control s setting group and overcurrent protective functions. If the VI Control experiences an overcurrent condition while this box is checked, this event will not be recorded. When this box is checked, a window will appear with the following message WARNING: You are about to DISABLE ALL PROTECTION. Press OK to confirm the selection. Page 25 GWI Rev. 1
26 Figure 5.16 Enable Block All Trips Warning Unchecking the box will put the control in normal operation mode. When this box is unchecked, a window showing WARNING: You are about to ENABLE ALL PROTECTION will ask to confirm the selection. Press OK to continue. 5.5 Load Current Figure 5.17 Disable Block All Trips Warning Figure 5.18 Load Current Fields The Load Current field will be populated when the VI Control Settings Software is connected to the VI Control and the Communication Status shows ONLINE. When the Auto box next to Retrieve is checked, the load currents get updated every 15 seconds. The primary current flowing through the switch will be shown in the A-phase field. Page 26 GWI Rev. 1
27 5.6 VI Control Information Figure 5.19 VI Control Information The VI control information will populate when the PC is connected to a VI Control and the Connection Status shows ONLINE. The VI Control Time field in the software gets updated every minute when connected to the control. The following information is displayed: Type - Settings option that is available on this control CT ratio Ratio of the current transformers in the switch Firmware Version of firmware on the control VI Control Time The current time on the VI control Last Configuration The time that the VI control was last configured Last configuration is updated when the send button is pressed or when the enable/disable button is pressed under Alternate tab with New or Modified in the settings field and communication status is ONLINE. 5.7 Protection Setting Group The VI control allows for one set of protection settings. For explanation of these settings, please refer to Section 6. Figure 5.20 Protection Settings Tab Page 27 GWI Rev. 1
28 5.8 Sequence of Events The sequence of events tab shows the 16 most recent events recorded in the VI control when the connection status shows ONLINE. The most recent event is recorded as E1 and the oldest event is recorded as E16. To view specific events, check the box next to the event and the detailed description of these events will be displayed in the box to the right. Multiple events can be checked and viewed at one time. Click the Refresh button to view any recent events. Figure 5.21 Sequence of Events Click the Download button to download all 16 events in the VI control as a.txt onto your PC. The format and explanation of one event is shown in Appendix B. Page 28 GWI Rev. 1
29 6. Overcurrent Protection Settings This section covers different settings and selections available for each setting for EZset option. Each control is factory set to the lowest setting or to customer provided settings after testing. Refer to Appendix D for the factory default settings. CAUTION Improper setting selections can result in miscoordination with other devices on the system. Check coordination of settings with other system devices before applying. CAUTION Curve selection and trip settings must be selected so as not to exceed the ratings of equipment on the system. Improper settings can cause damage to equipment on the system. CAUTION Switch bushing selection or cable size may limit acceptable trip setting selection. Trip setting must be selected so as not to exceed ratings of bushings or cable. Improper settings can cause damage to equipment on the system. Page 29 GWI Rev. 1
30 6.1 Time/Current Characteristic Curves (TCC) There are 30 built-in curves available for selection. The built-in curves include fuse and relay curves. The relay curves have multiple time dials which are displayed when the relay curve is selected in the software. Each TCC curve is stored in non-volatile memory as a series of 489 data points in a tabular format. A TCC curve is a table that provides different time delays for different current values. The G&W TCCs form two groups, emulation curves and standard relay curves. All curves are generated from emulations of actual curves. None of the emulations is meant to represent one specific manufacturer; instead, data was used from multiple manufacturers. All emulations meet ANSI standards. Different TCC curves can be selected for Phase and Ground Settings. Figure 6.1 shows where to set the Phase and Ground TCC curves. Note: For Time Current Curves, reference G&W website at Figure 6.1 Page 30 GWI Rev. 1
31 Trip Time (Sec) 6.2 Phase Minimum Trip General: The VI controls operate off of a Phase Minimum Trip setting. All Phase trip time calculations are made using this value as a point of reference. If the current is above the phase minimum trip threshold, then timing begins by comparing the primary current to the values stored in the TCC table. A trip command is sent when the time exceeds the TCC time associated with the measured primary current level. Settings: The range for the Phase Minimum Trip setting is Amps for 500:1 CTs and Amps for 1000:1 CTs. The user may select between 12 settings. Controls with 500:1 CTs can choose from 15A, 20A, 25A, 35A, 45A, 60A, 75A, 100A, 125A, 175A, 225A and 300A. Controls with 1000:1 CTs can choose from 30A, 40A, 50A, 70A, 90A, 120A, 150A, 200A, 250A, 350A, 450A, and 600A. Example: E-spd Slow Curve with Phase Minimum Trip of 25 Amps Primary Current (Amps) Figure 6.2 Figure 6.2 depicts how the trip timing is determined based on the measured input current. Variations in the primary current during the timing phase will also affect the final trip time. If during the timing phase the primary current falls below 85% of the Phase Minimum Trip setting the timing is reset to zero. If the primary current is between 85% and 100% of the Phase Minimum Trip setting, a reverse timing algorithm is employed until the timing is reset to zero. The accuracy of the timing is dependent on the slope of the TCC. The steeper the slope the greater the error band due to the accuracy of the current measurement. If the primary current is greater than 250 Amps, the typical current measurement accuracy is +/-2%. If the primary current is less than 250 Amps, the typical current measurement accuracy is +/-5 Amps. The TCC table has a dynamic range for currents ranging from the Phase Minimum Trip to 20 times the Phase Minimum Trip. The control will still issue a trip command if the current level Page 31 GWI Rev. 1
32 exceeds 20 times the Phase Minimum Trip value. In these scenarios, the control uses the fastest trip time on the selected TCC curve. For example, a Phase Minimum Trip of 15 Amps has a TCC maximum current of 300 Amps and a Phase Minimum Trip of 100 Amps has a TCC maximum current of 2000 Amps. The control can measure up to 6000 Amps for 500:1 CTs and 12,000 Amps for 1000:1 CTs. These are the maximum currents that will be recorded under Sequence of Events. Where to set Phase Minimum Trip in Software: Figure 6.3 Page 32 GWI Rev. 1
33 Trip Time (Sec) 6.3 Phase Instantaneous Trip Multiplier General: The Phase Instantaneous Trip Multiplier aids in customizing the protection capabilities of the control by providing a separate trip time for higher fault currents. When the phase current exceeds the current value defined by the Phase Minimum Trip times the Phase Instant Multiplier, the control will initiate a trip command to the switch within half a cycle, 8.3 msec at 60 Hz (10 msec at 50 Hz). Settings: The user may select between 9 settings. The settings available are OFF, x1, x3, x5, x7, x9, x11, x13, x15. Selecting OFF disables this feature. Example: E Speed Slow selected for Phase TCC, 60 Hz system, Phase Minimum Trip set to 25 Amps, Phase Instantaneous Trip Multiplier set to x3 Amps and all other settings inactive: Standard Curve Modified Curve with Instantaneous Trip setting of 75 Amps Primary Current (Amps) Figure 6.4 If the primary current on A phase is 60 Amps, the control will trip as defined by the TCC and Phase Minimum Trip setting in seconds. If the current is 80 Amps, which is above the Phase Instantaneous Trip setting of 75 Amps (25 x 3), the control will initiate a trip command in 8.3 msec instead of the typical Phase TCC time of seconds Page 33 GWI Rev. 1
34 Where to set Phase Instantaneous Trip Multiplier in software: Figure 6.5 Page 34 GWI Rev. 1
35 Trip Time (Sec) 6.4 Phase Time Delay General: Settings: This feature may be helpful when coordinating the VI Control with other protection devices. When the measured current level exceeds the Phase Minimum Trip value, the control will add the selected Phase Time Delay to the phase TCC time. After both the phase TCC time and Phase Time Delay have elapsed, the control will initiate a trip command to the mechanism. The user may select between 12 settings. The settings available are 0.000s, 0.030s, 0.060s, 0.100s, 0.150s, 0.200s, 0.250s, 0.300s, 0.350s, 0.400s, 0.450s, and 0.500s. Selecting 0.000s disables this feature. Example: E Speed Slow selected for Phase TCC, 60 Hz system, Phase Minimum Trip value set for 25 Amps, Phase Time Delay set for 0.30 seconds, and all other settings inactive: Modified Curve with Phase Time Delay of 0.3 secs Standard Curve Primary Current (Amps) Figure 6.6 If the primary current on A phase is 60 Amps, the control will time for the phase TCC time of seconds and then for the Phase Time Delay of 0.30 seconds. It will initiate a trip command in ( ) seconds. Page 35 GWI Rev. 1
36 Where to set Phase Time Delay in software: Figure 6.7 Page 36 GWI Rev. 1
37 Trip Time (Sec) 6.5 Phase Minimum Response Time General: Settings: The Phase Minimum Response Time feature allows the user to ensure that the Vacuum Interrupter will not trip open before a specific time. The user may select between 10 settings. The settings available are OFF, 0.050s, 0.100s, 0.145s, 0.205s, 0.260s, 0.335s, 0.405s, 0.495s and 0.580s. Selecting OFF disables this feature. Example: E Speed Slow selected for phase TCC, 60 Hz system, Phase Minimum Trip value set to 25 Amps, Phase Minimum Response Time set to 0.58 seconds, and all other settings inactive: Modified Curve with Phase Minimum Response of 0.58 secs Standard Curve Primary Current (Amps) Figure 6.8 If the primary current on A phase is 60 Amps, the normal phase trip time would be seconds as defined by the Phase TCC. Because this is above the Phase Minimum Response Time of 0.58 seconds, the VI Control uses the phase TCC time. If the primary current is 120 Amps, the Phase TCC time would be seconds. Because the Phase Minimum Response Time is set for 0.58 seconds, the control will wait and not initiate a trip command until 0.58 seconds. Page 37 GWI Rev. 1
38 Where to set Phase Minimum Response in software: Figure 6.9 Page 38 GWI Rev. 1
39 Trip Time (Sec) 6.6 Phase Inrush Restraint General: The Phase Inrush Restraint function consists of two settable parameters, the Phase Inrush Trip Multiplier and the Phase Inrush Active Timer. This function is helpful for preventing nuisance trips due to cold load pickup. At the initial start-up of the control, Phase Minimum Trip value is temporarily changed to the Phase Minimum Trip times the Phase Inrush Trip Multiplier. This value is active for the duration of the Phase Inrush Active Timer. The Phase Inrush Restraint Function is disabled after the Phase Inrush Active Timer expires, or any phase exceeds the Phase Inrush Trip Multiplier times the Phase Minimum Trip. Once disabled, the Phase Inrush Restraint Function will not be reactivated unless the average three phase primary current drops below 7.5 Amps (500:1 CTs) or 15 Amps (1000:1 CTs). Settings: Example: The user may select between 12 settings for Phase Inrush Multiplier and 12 settings for Phase Inrush Active Timer. The settings available for the multiplier are x1, x2, x3, x4, x5, x6, x7, x8, x9, x11, x13, x15 and the settings available for the active timer are 0.00s, 1.75s, 3.25s, 5.25s, and 7.00s. Selecting 1 for the Phase Inrush multiplier or entering 0.00s for the Phase Inrush Active timer will disable this feature. E Speed Slow selected for phase TCC, Phase Minimum Trip value set to 25 Amps, Phase Inrush multiplier set to 3, Phase Inrush Active Timer set to 5.25 seconds, and all other settings inactive: Modified Curve with Inrush multiplier of 3 and Inrush delay of 5.2 seconds Standard Curve Primary Current (Amps) Figure 6.10 If the primary current on A phase is 60 Amps, the TCC time would be seconds without inrush functionality. Because inrush function is activated, the Phase Minimum Trip is temporarily changed to 75Amps (25 x 3) for 5.25 seconds. If the primary current remains at 60 Amps after 5.25 seconds, the control will begin timing per the TCC and then initiate a trip command. The total time will be ( ) seconds. Page 39 GWI Rev. 1
40 If the current on phase A goes above 75 Amps, the Inrush Restraint function will be disabled, and the control will initiate a trip command using the Phase TCC with a Phase Minimum Trip of 25 Amps. Where to set Phase Inrush Modifiers in Software: Figure 6.11 Page 40 GWI Rev. 1
41 7. Product Specification Power Requirements External Power Requirements (optional) External Trip Requirements (optional) Minimum Trip Setting Options (500:1 CT) Minimum Trip Setting Options (1000:1 CT) Enclosure Frequency Environment Powered by current from the current transformers VDC (Input rage 12VDC minimum/30 VDC maximum) (Standard), 48VDC, 120VAC, 220VAC (Optional input range +/- 10% for each voltage, see Section 3 for details) Contact must close for a minimum of 15msec. Contact must open (reset) prior to next signal 15A, 20A, 25A, 35A, 45A, 60A, 75A, 100A, 125A, 175A, 225A, 300A 30A, 40A, 50A, 70A, 90A, 120A, 150A, 200A, 250A, 350A, 450A, 600A IP68 (20ft 20 days) 60 Hz (Standard) 50 Hz (Optional) Operating Temperature: -40ºC to +65ºC Storage Temperature: -50ºC to +85ºC Humidity: 10% to 95% Type Tests: Electrostatic Discharge test Radiated Electromagnetic Field Disturbance test & Radiated Electromagnetic Interference IEC Level 4 contact discharge on conductive user interface IEEE C V/m Surge Withstand ANSI/IEEE C37.60 Vibration IEC First Edition 1988 (EN First Edition 1995) Electrical relays, Part 21: Vibration, shock, bump, and seismic tests on measuring relays and protection equipment; Section One Vibration tests (sinusoidal); Severity: Class 1 Endurance; Class 2 Response. IEC First Edition 1988 (EN First Edition 1995) Electrical relays, Part 21: Vibration, shock, bump, and seismic tests on measuring relays and protection equipment; Section Two Shock and Bump tests. Severity Level: Class 1 Shock withstand, Bump; Class 1 Shock Response Page 41 GWI Rev. 1
42 (EZ Set) Setting Options: Feature 500:1 Current Transformers 1000:1 Current Transformers Trip Selection 1 or 3 Phase 1 or 3 Phase Minimum Trip 15 Amps (7 Amp Fuse Equivalent) 20 Amps (9 Amp Fuse Equivalent) 25 Amps (11 Amp Fuse Equivalent) 35 Amps (15 Amp Fuse Equivalent) 45 Amps (20 Amp Fuse Equivalent) 60 Amps (26 Amp Fuse Equivalent) 75 Amps (33 Amp Fuse Equivalent) 100 Amps (43 Amp Fuse Equivalent) 125 Amps (55 Amp Fuse Equivalent) 175 Amps (80 Amp Fuse Equivalent) 225 Amps (100 Amp Fuse Equivalent) 300 Amps (132 Amp Fuse Equivalent) 30 Amps (13 Amp Fuse Equivalent) 40 Amps (18 Amp Fuse Equivalent) 50 Amps (22 Amp Fuse Equivalent) 70 Amps (31 Amp Fuse Equivalent) 90 Amps (40 Amp Fuse Equivalent) 120 Amps (54 Amp Fuse Equivalent) 150 Amps (67 Amp Fuse Equivalent) 200 Amps (90 Amp Fuse Equivalent) 250 Amps (110 Amp Fuse Equivalent) 350 Amps (155 Amp Fuse Equivalent) 450 Amps (200 Amp Fuse Equivalent) 600 Amps (270 Amp Fuse Equivalent) Phase Time Delay Instantaneous Setting Inrush Setting Inrush Timer Minimum Response Time Ground Fault Setting Curves 12 Set Points 0, 0.03, 0.06, 0.10, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, Multipliers 1, 3, 5, 7 9, 11, 13, Multipliers 1, 2, 3, 4, 5, 6 7, 8, 9, 11, 13, 15 5 Set Points 0, 1.75, 3.25, 5.25, 7.0 Settings 0, 0.05, , 0.205, , 0.405, 0.495, Settings Off, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50% E-SPEED SLOW; E-SPEED STANDARD; OIL FUSE CUTOUT; COOPER F; K-SPEED; KEARNEY QA; COOPER EF; NX C-RATED CO11 RELAY; TIME DIAL 1, 2 CO 9 RELAY; TIME DIAL 1, 2, 4.5 TYPE T FUSE LINK CO 8 RELAY; TIME DIAL ½, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 COOPER 280 ARX RECLOSER CENTERIOR A ; KEARNEY KS; GE IAC53 RELAY; TIME DIAL 1 12 Set Points 0, 0.03, 0.06, 0.10, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, Multipliers 1, 3, 5, 7 9, 11, 13, Multipliers 1, 2, 3, 4, 5, 6 7, 8, 9, 11, 13, 15 5 Set Points 0, 1.75, 3.25, 5.25, 7.0 Settings 0, 0.05, , 0.205, , 0.405, 0.495, Settings Off, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50% *** The 2.3 comes from between minimum melt rating and maximum clear rating (the minimum time to trip) in relation to the fuse value; the minimum trip results in being around 2. 3 times the fuse rating. For example, on a 1000:1 setting with 30A minimum trip setting would be equivalent to a 13A fuse. Page 42 GWI Rev. 1
43 Appendix A: RS 485 MODBUS - RTU PROTOCOL A.1 Communication Settings Baud rate 1200 Parity Odd Error check CRC - 16 Hardware RS 485 A.2 Modbus Functions Supported The communication driver has implemented the following functions: 1. Function Code 03 - Read one or more Holding Registers. Refer to section A.3 for more information. 2. Function Code 04 - Read one or more Input Registers. Refer to section A.4 for more information. A.3 Function Code 03 Parameters Function Code: 03 Start address: 0000 Number of registers: 15 Register Parameter 0002 Minimum Trip Phase A 0003 Phase Instant Trip Multiplier 0006 Phase Time Delay Adder 0007 Phase Minimum Response Time 0008 Phase Inrush Restraint Multiplier 0009 Phase Inrush Restraint Time Adder 0010 The Phase TCC 0012 Transformer ratio and option flags 0013 Reserved 0014 Unit Address Registers Phase Minimum Trip A A3.1 Interpretation of Parameters Value (CT 500 : 1) (CT 1000 : 1) 0 15 A 30 A 1 20 A 40 A 2 25 A 50 A 3 35 A 70 A 4 45 A 90 A 5 60 A 120 A 6 75 A 150 A A 200 A A 250 A Page 43 GWI Rev. 1
44 9 175 A 350 A A 450 A A 600 A Register 0003 Phase Instant Trip Multiplier Value Multiplier 0 OFF Register 0010 Phase Time Current Curve Value TCC 0 E-SLOW (E Speed Slow) 1 E-STD (E Speed Standard) 2 OFC (Oil Fuse Cut Out) 3 K (K Speed) 4 KEAR Q (Kearney QA Speed) 5 EF (EF Speed) 6 NX-C (NC35-C) 7 CO11-1 (CO11 Time Dial 1) 8 CO11-2 (CO11 Time Dial 2) 9 T LINK (T Speed Slow/ T Link) 10 CO9-1 (CO9 Time Dial 1) 11 CO9-2 (CO9 Time Dial 2) ARX (280 ARC Recloser Curve) 13 CO9-4.5 (CO9 Time Dial 4.5) 14 CENT A (Centerior A) 15 KEARKS (Kearney KS Speed) 16 IAC53 (GE IAC53 Relay) 17 F (F Speed) 18 CO8-.5 (CO8 Time Dial 0.5) 19 CO8-1 (CO8 Time Dial 1) 20 CO8-2 (CO8 Time Dial 2) 21 CO8-3 (CO8 Time Dial 3) 22 CO8-4 (CO8 Time Dial 4) 23 CO8-5 (CO8 Time Dial 5) 24 CO8-6 (CO8 Time Dial 6) 25 CO8-7 (CO8 Time Dial 7) 26 CO8-8 (CO8 Time Dial 8) 27 CO8-9 (CO8 Time Dial 9) 28 CO8-10 (CO8 Time Dial 10) 29 CO8-11 (CO8 Time Dial 11) 30 Effuse (EF Fuse Equivalent) Register 0006 Phase Time Delay adder Value Time Delay Seconds Seconds Seconds Page 44 GWI Rev. 1
45 Seconds Seconds Seconds Seconds Seconds Seconds Seconds Seconds Seconds Register 0007 Phase Minimum Response time Value Minimum Response Time 0 OFF Seconds Seconds Seconds Seconds Seconds Seconds Seconds Seconds Seconds Register 0008 Phase Inrush Restraint multiplier Value Inrush Multiplier 0 x1 1 x2 2 x3 3 x4 4 x5 5 x6 6 x7 7 x8 8 x9 9 x11 10 x13 11 x15 Register 0009 Phase Inrush Restraint Time Adder Value Time Adder Seconds Seconds Seconds Seconds Seconds Register 0012 Transformer ratio and option flags: Most significant byte reads 0x00, low significant byte according to table below. Bit Interpretation 1 0 CT ratio 500:1 Read only 2 0 CT ratio 1000:1 Read only 3 1 Block All Trips/ 0 Enable All Trips Read / Write Page 45 GWI Rev. 1
46 4 0 Enable Block all trips Read only 5 0 CT Correction Old Read only 6 0 CT Correction New Read only 7 Read 1 Read only 8 0 Block Ground Fault trip Read only Register 0014 The Unit Address Most significant byte is reserved, low significant byte according to table below. Value Address Page 46 GWI Rev. 1
47 A.4 Modbus Function Code 04 Load Currents and Cause of Trip Function Code: 04 Start address: 0000 Number of registers: 6 Register Parameter 0003 Load Current Phase A 0004 Cause of the Last Trip 0005 Fault Current of the Last Trip A.4.1 Interpretation of Load Currents and Cause of Trip Registers 0000, 0001, 0002, 0003, 0005 Load Currents The binary values of currents (fault/load) represent the current in Amps in the primary circuit. The value is scaled according to the Min Trip setting and ratio of the transformer. Register 0004 Cause of the Last Trip Value Cause 0x03 Phase A 0x07 Phase A - instantaneous 0x23 Phase A Current over the dynamic range of 20 0x08 Manual/Remote 0xFF Memory clear A.5 Exception Definitions The control has implemented the following exception codes: 1. Illegal function - code 01. The message function received is not an allowable action. This message is sent if the Type 3 received any request other than implemented functions (code 3, code 4, and code6). 2. Illegal data address - code 02. The address referenced in the address field is not valid. The control will respond with this message if the register address is not implemented. 3. Illegal data value - code 03. The value referenced in the data field is not valid. If a CRC error is detecting, the control will not respond. The implementation of the communication driver does not support parity bit checking. If the waiting time between two characters is longer than 32.5 milliseconds the message will be ignored and no response will be send. Page 47 GWI , Rev.1
48 Appendix B: Sequence of Events Format Event Number: Date and Time of Trip: (yyyy-mm-dd hh:mm:ss) Cause of Trip: Phase A Minimum Trip, Remote Trip, Phase A Instant Amount of Fault Current: A Phase = XX Amps Elapsed Fault Current Time: XX msec A Phase = 0 msec Time Control Powered prior to trip: XX Days, YY Hours, ZZ Minutes, AA Seconds, BB msec Last recorded Load Current prior to Fault Condition: A Phase = XX Amps Setting at time of Trip: Minimum Trip Phase A: X A (X A Fuse) Phase Instant: X Amps Phase Time Delay: X sec Phase Minimum Response: X sec Phase Inrush Multiplier: X Phase Inrush Time Delay: X sec Control Specific Information Device ID: XXXXXXXXXXXXXX Feeder Name: XXXXXXXXXXX Other: XXXXXXXXXXXX Active Group: Protection Settings Type: 1-Phase EZset Firmware v.1.03 Trip Solenoid Activated 1 : A=X.X V Trip Capacitor Voltage 2 : A=X.X V Control Power Status 3 : X.X V Temperature of Control at time of Trip: X C 1 If Trip Solenoid Activated is 7.5V or above, the trip signal was properly activated and sent to the switch. If the value is below 7.5V, the trip signal was not properly activated. Contact G&W Technical Support for assistance. 2 If Trip Capacitor Voltage is 7.5V or above, the trip capacitor was fully charged and able to send a trip signal to the switch. If this value is below 7.5V, contact G&W Technical Support for assistance 3 If the control power status is greater than or equal to 6.8V, the control is fully powered. Page 48 GWI , Rev.1
49 Appendix C: Print Format Page 49 GWI , Rev.1
50 Appendix D: Factory Default Settings Device ID: Blank Feeder Name: Blank Other: Blank Protection Settings: Phase TCC Selection: Fuse, E Speed Slow, Time Dial: None Phase Minimum Trip: 500:1 CTs: 15 Amps (7A Fuse) 1000:1 CTs: 30 Amps (13A Fuse) Phase Time Modifiers: Phase Instant: OFF Time Delay: 0.0 Seconds Minimum Response: OFF Phase Inrush Modifiers: Inrush Multiplier: x1 Inrush Active Timer: 0.00 Seconds Page 50 GWI , Rev.1
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