D.C.M Dynamic Contact Measurement User Manual page 1(22) INDEX GENERAL APPLICATION AREA OVERVIEW SAFETY...

Transcription

1 Rev 4

2 D.C.M Dynamic Contact Measurement User Manual page 1(22) INDEX INDEX GENERAL APPLICATION AREA OVERVIEW SAFETY GENERAL SAFETY INSTRUCTIONS CONNECTIONS CONNECTION TO PC Connecting with RS232 serial port Connecting with Bluetooth Create a Bluetooth connection Troubleshoot Bluetooth connection Remove the Bluetooth connection Installing Bluetooth adapter on a laptop that already has Bluetooth Installing Bluetooth adapter on computer with Windows Connecting with Ethernet (Requires BTS11 V1.6 or later) CONNECTION TO BREAKER POLES Connection for single phase and one contact element/phase Connection for single phase and two contact elements in series/phase Connection for 3-phases with two contact element in series/phase Connection for Rogowski coil on single phase and one contact element/phase Connection for Rogowski coil on single phase and two contact elements in series/phase OPERATION PREPARATION OPEN TEST WINDOW STATIC RESISTANCE MEASUREMENT DYNAMIC RESISTANCE MEASUREMENT TROUBLE SHOOTING NOT RECOGNIZE DCM UNITS NO TRIG NO MEASUREMENT MAINTENANCE BEFORE USE OR ACCORDING TO COMPANY POLICY CHECK EVERY 12 MONTHS OR ACCORDING TO COMPANY POLICY CHECK AND ADJUSTMENT CALIBRATION APPROVAL SERVICE WINDOW DCM CALIBRATION WINDOW CALIBRATION WIZARD - VOLTAGE INPUTS Voltage calibration- Step Voltage calibration- Step Voltage calibration- Step Voltage calibration- Step CALIBRATION WIZARD CURRENT OUTPUTS (RESISTANCE) Current calibration - Step Current calibration - Step Current calibration - Step TRANSPORTATION/SCRAPPING/RECYCLING SPECIFICATIONS DCM CU TECHNICAL SPECIFICATION DCM 2 TECHNICAL SPECIFICATION DCM KIT (ITEM NUMBER S160) INCLUDES DECLARATION OF CONFORMITY REVISIONS... 22

3 D.C.M Dynamic Contact Measurement User Manual page 2(22) 1 GENERAL 1.1 APPLICATION AREA The DCM units are used to perform dynamic contact measurements for High Voltage Circuit Breakers in sub stations with both side grounded. Static resistance measurement can also be performed for breakers with two contact element in series, both side grounded and the middle point not grounded. To be able to perform Static resistance measurement for breakers with one breaking element, only one side can be grounded. 1.2 OVERVIEW The test equipment for Dynamic contact measurement consists of one DCM-CU unit and from one up to three DCM-2 units. That means up to 6 contact elements can be tested at the same time. DCM-CU unit handles the communication between the PC, external switch analyser and DCM-2 unit(s). It also charge two capacitors (super cap) in each DCM-2 unit that is used to give a high measurement current during operation. DCM-2 unit(s) handles the output of the current and sample the current values and voltage drop values during the operation. After the operation has been done the current and voltage drop curves are downloaded to the PC-software for further evaluation. 2. SAFETY Important! 2.1 GENERAL This instrument shall only be used by authorized and educated personnel. It s the operators responsible to read and follow all operating and safety instructions for connecting and using this instrument. Always keep the below safety instructions in mind when using the instrument. 2.2 SAFETY INSTRUCTIONS Local safety regulations. Always follow local safety regulations for work on high-voltage circuit breakers. Ground connection The DCM units can only be used in electrical system with single grounds. If there is a High voltage ground and Low voltage ground make sure that there is no potential voltages difference between these grounds. If that s not the case, consult local safety regulations. Always connect the separate ground terminal on DCM-2 to protective ground before any other connections. Check that the separate protective ground wire is in good condition before connection. Make sure that the power socket for mains is a grounded outlet and that the power cable is in good condition before connecting the main power to the control unit DCM-CU. Connections to the instrument. All cables to the DCM units shall first be connected to the DCM-units (DCM-CU and DCM-2) before any connections to the test object. Only use original cables for connection and make sure that the cables are in good conditions. Before any connections to the high voltage circuit breaker. Make sure that the breaker is in Close position and disconnected from the line at both sides. Make sure that breaker is grounded on both sides. Make sure that any remote control device is disconnected from the control circuits of the breaker. Make first connection to the breaker poles before any connections to the breaker mechanism. Connections in general Take care when working near bare connectors and bus bars. Contact with a conductor may cause an electrical shock. Take special care at wet conditions. Surrounding personal Make sure that surrounding personal can t touch the breaker during a test

4 D.C.M Dynamic Contact Measurement User Manual page 3(22) 3. CONNECTIONS Important! Read safety instruction chapter 2. SAFETY before any connections 3.1 CONNECTION TO PC DCM 2 UNIT 1 BREAKER POL A DCM 2 UNIT 2 BREAKER POL B PC DCM CU DCM 2 UNIT 3 BREAKER POL C BREAKER CLOSE COIL SWITCH ANALYSER BREAKER TRIP COIL BREAKER MOTOR Take the supplied Serial connection cable DB9 of DCM CU and connect the DB9 Male connector to RS232 port of the Switch Analyser and connect the DB9 connector to RS232 TO SWITCH ANALYSER port of DCM CU. Connection between PC and DCM CU can be done in one of three ways. See chapter Connecting with RS232 serial port See chapter Connecting with Bluetooth See chapter Connecting with Ethernet (Requires BTS11 V1.6 or later) Female CONNECTING WITH RS232 SERIAL PORT Take the supplied Serial connection cable DB9 of DCM CU and connect the DB9 Female connector to RS232 port of the PC computer and connect the DB9 Male connector to RS232 TO COMPUTER port of DCM CU CONNECTING WITH BLUETOOTH When the driver is installed you can select the Bluetooth Serial port (COMXXX) in the serial communication list CREATE A BLUETOOTH CONNECTION Right-click the Bluetooth icon in the status bar. If no Bluetooth icon appears, click the arrow to show all hidden icons. If you still cannot find the Bluetooth icon, your computer is probably not equipped with Bluetooth. Click Show Bluetooth Devices Click Add a device

5 D.C.M Dynamic Contact Measurement User Manual page 4(22) Select DCM-XXXX * and click Next. DCM connected. If no DCM-XXXX * found verify that DCM-XXX is turned on and that you are not too far away from the unit (< 100 meters clear sight). * XXXX is the serial number on the unit. DCM-0001 Now the Bluetooth device is paired with a code. If your computer is equipped with Bluetooth version 2.1 and later, paired the devices together automatically with a code (see picture). O.B.S! If you have an older version of Bluetooth than 2.1, you must enter the pairing code to DCM. The code you enter is Click Next to continue. DCM-0001 When the wizard is finished, you can close the wizard by clicking the Close button. DCM-0001 To find out which COM port that DCM got right click on DCM- XXXX and click Properties. Click on the Services tab. Note the COM port DCM got (COMXXX).

6 D.C.M Dynamic Contact Measurement User Manual page 5(22) TROUBLESHOOT BLUETOOTH CONNECTION Right click on DCM-XXXX and click Troubleshoot. Follow the instructions in the wizard REMOVE THE BLUETOOTH CONNECTION Right click on DCM-XXXX and click Remove device. Click Yes in the dialog box to remove the connection.

7 D.C.M Dynamic Contact Measurement User Manual page 6(22) INSTALLING BLUETOOTH ADAPTER ON A LAPTOP THAT ALREADY HAS BLUETOOTH. Two Bluetooth adapters may not interact with Windows. Therefore, the internal adapter needs to be disabled before the USB Bluetooth adapter in connected. Open Device Manager by clicking the Start button, Control Panel, System and Security and then click Device Manager under System. If you are prompted for an administrator password or confirmation, follow the prompt. Expand Bluetooth Radios. Right-click the driver for your Bluetooth Receiver. Click Disable to disable the device. Click Yes in the following dialog. Then connect the Bluetooth USB Adapter to your computer's USB port. A new Bluetooth adapter together with Microsoft Bluetooth Enumerator will be shown under Bluetooth Radios

8 D.C.M Dynamic Contact Measurement User Manual page 7(22) INSTALLING BLUETOOTH ADAPTER ON COMPUTER WITH WINDOWS 10 Windows 10 installs the wrong driver for the LM540 Bluetooth adapter. To correct this do the following. Right click start and click Device Manager. Expand node Universal serial bus controllers. Select Generic Bluetooth Adapter and click Next. Right click CSR BlueCore Bluetooth and click Update Driver Software In the dialog click Browse my computer for driver software. In the dialog click Let me pick from a list of drivers on my computer. Windows will install the correct driver. Click Close CONNECTING WITH ETHERNET (REQUIRES BTS11 V1.6 OR LATER) At the moment Ethernet connection is not available. This will be added in BTS12

9 D.C.M Dynamic Contact Measurement User Manual page 8(22) 3.2 CONNECTION TO BREAKER POLES CONNECTION FOR SINGLE PHASE AND ONE CONTACT ELEMENT/PHASE Take the connection cable DCM-2 and Connect the M12, 8 pole Female connector to DCM UNIT 1 plug on DCM CU, connect the M12, 8 pole Male connector to CONNECT TO CONTROL UNIT plug on DCM 2. Connect the connection cable, breaker base to CURRENT and SENSE. Connect the connection cable, breaker T element to + CURRENT 1 and + SENSE 1. Put the DCM2 in the supplied bag and attach to the breaker base with the supplied straps. Attach the clamp of the connection cable, breaker base to the pole of breaker base. Attach the clamp of the connection cable, breaker T element to the pole of breaker element. Connection diagram one contact

10 D.C.M Dynamic Contact Measurement User Manual page 9(22) CONNECTION FOR SINGLE PHASE AND TWO CONTACT ELEMENTS IN SERIES/P HASE. Take the connection cable DCM-2 and Connect the M12, 8 pole Female connector to DCM UNIT 1 plug on DCM CU, connect the M12, 8 pole Male connector to CONNECT TO CONTROL UNIT plug on DCM 2. Connect the connection cable, breaker base to CURRENT and SENSE. Connect the connection cable, breaker T element to + CURRENT 1 and + SENSE 1. Connect the connection cable, breaker T element to + CURRENT 2 and + SENSE 2. Put the DCM2 in the supplied bag. Make sure that CURRENT 1 and + SENSE 1. Cable is to the Left of the bag. Make sure that CURRENT 2 and + SENSE 2. Cable is to the Right of the bag. Attach bag with DCM2 to the breaker base with the supplied straps on the bag. Attach the clamp of the connection cable, breaker base to the pole of breaker base. Attach the clamp of the left connection cable, breaker T element to the pole of left breaker T element. Attach the clamp of the right connection cable, breaker T element to the pole of right breaker T element. Connection diagram T element

11 D.C.M Dynamic Contact Measurement User Manual page 10(22) CONNECTION FOR 3-PHASES WITH TWO CONTACT ELEMENT IN SERIES/PHASE A B C Take the connection cable DCM-2 and Connect the M12, 8 pole Female connector to DCM UNIT 1 plug on DCM CU, connect the M12, 8 pole Male connector to CONNECT TO CONTROL UNIT plug on DCM 2. Connect the connection cable, breaker base to CURRENT and SENSE. Connect the connection cable, breaker T element to + CURRENT 1 and + SENSE 1. Connect the connection cable, breaker T element to + CURRENT 2 and + SENSE 2. Put the DCM2 in the supplied RED bag. Make sure that CURRENT 1 and + SENSE 1. Cable is to the Left of the bag. Make sure that CURRENT 2 and + SENSE 2. Cable is to the Right of the bag. Attach RED bag with DCM2 to the pole A breaker base with the supplied straps on the bag. Attach the clamp of the connection cable, breaker base to the pole of breaker base. Attach the clamp of the left connection cable, breaker T element to the pole of left breaker T element. Attach the clamp of the right connection cable, breaker T element to the pole of right breaker T element. Take the connection cable DCM-2 and Connect the M12, 8 pole Female connector to DCM UNIT 1 plug on DCM CU, connect the M12, 8 pole Male connector to CONNECT TO CONTROL UNIT plug on DCM 2. Connect the connection cable, breaker Connect the connection cable, breaker base to CURRENT and SENSE. Connect base to CURRENT and SENSE. Connect the connection cable, breaker T element to the connection cable, breaker T element to + CURRENT 1 and + SENSE 1. + CURRENT 1 and + SENSE 1. Connect the connection cable, breaker T Connect the connection cable, breaker T element to + CURRENT 2 and + SENSE 2. element to + CURRENT 2 and + SENSE 2. Put the DCM2 in the supplied YELLOW bag. Make sure that CURRENT 1 and + SENSE 1. Cable is to the Left of the bag. Make sure that CURRENT 2 and + SENSE 2. Cable is to the Right of the bag. Attach RED bag with DCM2 to the pole B breaker base with the supplied straps on the bag. Attach the clamp of the connection cable, breaker base to the pole of breaker base. Attach the clamp of the left connection cable, breaker T element to the pole of left breaker T element. Attach the clamp of the right connection cable, breaker T element to the pole of right breaker T element. Take the connection cable DCM-2 and Connect the M12, 8 pole Female connector to DCM UNIT 1 plug on DCM CU, connect the M12, 8 pole Male connector to CONNECT TO CONTROL UNIT plug on DCM 2. Put the DCM2 in the supplied BLUE bag. Make sure that CURRENT 1 and + SENSE 1. Cable is to the Left of the bag. Make sure that CURRENT 2 and + SENSE 2. Cable is to the Right of the bag. Attach RED bag with DCM2 to the pole C breaker base with the supplied straps on the bag. Attach the clamp of the connection cable, breaker base to the pole of breaker base. Attach the clamp of the left connection cable, breaker T element to the pole of left breaker T element. Attach the clamp of the right connection cable, breaker T element to the pole of right breaker T element.

12 D.C.M Dynamic Contact Measurement User Manual page 11(22) CONNECTION FOR ROGOWSKI COIL ON SINGLE PHASE AND ONE CONTACT ELEMENT/PHASE Rogowski coil can be used instead of connecting the electrical sense 1 and 2 to DCM2. The ratio of the Rogowski coil needs to have a peak range of A and 10 mv/ampere output. One model that has been successfully tested is Fluke i3000s Flex-24 AC Current Probe. Connection diagram one contact with Rogowski coil CONNECTION FOR ROGOWSKI COIL ON SINGLE PHASE AND TWO CONTACT ELEMENTS IN SERIES/PHASE. Rogowski coil can be used instead of connecting the electrical sense 1 and 2 to DCM2. The ratio of the Rogowski coil needs to have a peak range of A and 10 mv/ampere output. One model that has been successfully tested is Fluke i3000s Flex-24 AC Current Probe Connection diagram T element with Rogowski coil

13 D.C.M Dynamic Contact Measurement User Manual page 12(22) 4. OPERATION REMARK! All connections for testing according to chapter 3. CONNECTIONS assumed were performed. The user is assumed to be familiar with the PC-software BTS11. Se User manual BTS11 for more information of the PC-software. 4.1 PREPARATION Read Safety instructions in chapter 2. SAFETY before any connections. Make connections for DCM measurement as described in chapter 3. CONNECTIONS Start the PC-software BTS11 See User manual BTS11 for creating a test object and preparing for a test 4.2 OPEN TEST WINDOW Open the test window for selected test. Note! The test described below is done for one phase with two contact elements. There are 3 command buttons for operations that can be used with the DCM units Static pole res. Perform a static resistance measurement on a closed contact element. Selection of phase and contact element are done before the measurement take place. DCM at Open Perform a dynamic resistance/contact measurement at an OPEN operation. Selection of phase and contact element are done before the measurement take place. The trig signal for start of measurement is taken from the output voltage to the Trip coil. DCM at Close Perform a dynamic resistance/contact measurement at a CLOSE operation. Selection of phase and contact element are done before the measurement take place. Trig signal for start of measurement is taken from the output voltage to the Close coil.

14 D.C.M Dynamic Contact Measurement User Manual page 13(22) 4.3 STATIC RESISTANCE MEASUREMENT Pressing the command button Static pole res. opens a selection window for selection of phase and contact element. TEST PROCEDURE Select phase (if more than 1 phase) and contact elements to be tested in the selection boxes. Press command button Test to execute the test. RESULT AFTER TEST 4.4 DYNAMIC RESISTANCE MEASUREMENT Pressing the command button DCM at Open or DCM at Close opens a selection window for selection of phase and contact element. TEST PROCEDURE: Select phase (if more than 1 phase) and contact elements to be tested in the selection boxes. Press command button Ok to open the operation window OPERATION WINDOW. Press command button Operation (when enabled) to execute an Open operation Result after DCM operation at Open

15 D.C.M Dynamic Contact Measurement User Manual page 14(22) 5. TROUBLE SHOOTING Trouble shooting must only be performed by authorized and educated personnel. 5.1 NOT RECOGNIZE DCM UNITS - Check that the DCM-CU has main power - Check communication cable/connectors between PC and DCM-CU - Check communication cable/connectors between Switch analyser (SA10) and DCM-CU 5.2 NO TRIG - Check communication cable/connectors between DCM-CU and DCM NO MEASUREMENT - Check than cables/connectors for high current and voltage drop measurement are properly inserted inte the connectors. - Make sure that you have good connection with the clamps on the poles of the test object. If the poles are dirty they may may require cleaning for good connection. 6. MAINTENANCE Note! Service and maintenance must only be performed by authorized and educated personnel. 6.1 BEFORE USE OR ACCORDING TO COMPANY POLICY Maintenance Visual check of condition for cables and cable connectors Visual check of condition for connectors at DCM units 6.2 CHECK EVERY 12 MONTHS OR ACCORDING TO COMPANY POLICY Maintenance Visual check of condition for cables and cable connectors Visual check of condition for connectors at DCM units Perform calibration of unit. Solution Replace cable(s) or/and connector(s) with new if any damages are found Send the unit for repair if any damages are found. Solution Replace cable(s) or/and connector(s) with new if any damages are found Send the unit for repair if any damages are found. See chapter 7. Check and adjustment for check and calibration of DCM units. Or send the unit to for calibration. 7. CHECK AND ADJUSTMENT Note! Check and adjustments must only be performed by authorized and educated personnel. Check and adjustments of DCM-2 are done with the PC-software BTS11. The personnel that are allowed to make checks and calibration described in this chapter 7. Check and adjustment are assumed to familiarly with the PC-software BTS11. Refer to BTS11 User manual for operating instructions. Select Menu Service and function DCM-unit to get to the service window for DCM-2 All analogue inputs on the DCM-2 are software calibrated. Calibration can easy be done from a calibration wizard. All calibration constants and password for changing constants are saved in the DCM-2 unit. Note! Password to save new calibration at delivery is elcon Instrument needed Variable DC-voltage source: ± 0.125V DC, ± 1.25 VDC Voltage instrument: ± 1.25 VDC accuracy ± 0,02% Reference resistance ohm, accuracy <= 0.5% Principle of calibration Two points are measured at about 10 respective about 90% of full scale. The values are measured with both the DCM-2 and a connected reference instrument. With use of the equation for a straight line the new calibration constants are calculated. IMPORTANT! All voltage inputs and current outputs must be checked/calibrated. All voltage inputs must be checked/calibrated before Current outputs (resistance). (The voltage inputs are used as reference when calibrate the current outputs). 7.1 CALIBRATION APPROVAL Voltage inputs Sense 1, Sense 2 Approval: range V = 0.1 mv Approval: range V = 1.0 mv Current/Resistance measurement Current 1, Current 2 Make a resistance measurement on a calibrated resistance. Approval: range ohm 2 ohm Approval: range ohm 20 ohm

16 D.C.M Dynamic Contact Measurement User Manual page 15(22) 7.2 SERVICE WINDOW DCM Preparations: Make connections as for a normal measurement (Single pole). See chapter Connection for single phase and one contact element/phase for connections. Replace breaker element with a calibrated current shunt. Turn on the Switch analyser Start BTS11 software Click Menu Service and click function DCM-unit The Service window for DCM-unit will be displayed: Click tab for DCM-2 unit to be calibrated Press command button Calibrate to get to the calibration window 7.3 CALIBRATION WINDOW This window gives some general information of the connected DCM unit and the current used calibration constants. It also give the possibility to the user to set its own instrument number, set new password for calibration and start a calibration guide. The calibration constants can be change directly in the text boxes and saved with the Save button. It is strongly recommended that you use the command button Calibration wizard to make calibration instead of just changing the calibration constants in the test boxes. Command buttons: New Password Change of current password (The password is saved in DCM-2) Customer Settings Set a customer instrument number. Calibration Wizard Start a calibration guide Save Save changed calibration constants to DCM-2 Print Print all calibration constants for DCM-2 on a connected printer. Tip! Always printout a protocol after a calibration. Cancel Cancel the calibration guide. The calibration procedure is almost the same for all inputs. Press the command button Calibration Wizard to start the calibration guide. Follow the instructions for each dialogue box. 7.4 CALIBRATION WIZARD - VOLTAGE INPUTS After pressing the command button Calibration Wizard the window for the first step will be displayed. This window is used to select input(s) that shall be calibrated. Select the option button for the voltage input(s) you like to calibrate. It s recommended for voltage inputs that you calibrate both inputs Sense 1+2 at the same time. It will save calibration time! Important! Voltage inputs must be calibrated before current outputs. (The voltage inputs are used as reference when calibrate the current outputs) VOLTAGE CALIBRATION- STEP 2 This window is used to inform the user of the voltage source that must be available and where the connection shall be done. Connect the variable voltage source and press button Next to continue

17 D.C.M Dynamic Contact Measurement User Manual page 16(22) VOLTAGE CALIBRATION- STEP 3 This window is used to inform the user of the voltage setting and allow the user to type the value read from the connected reference instrument. The instrument box shows the current read value from DCM-2 Adjust the voltage source to the recommended voltage level Be aware of the sign of the voltage level Read the value from the reference instrument and type the value in the text box Press button next to continue VOLTAGE CALIBRATION- STEP 4 This window is the same as previous step. This time you shall set the second voltage value. Adjust the voltage source to the recommended voltage level Be aware of the sign of the voltage level Read the value from the reference instrument and type the value in the text box Be aware of the sign of the voltage level Press button Next to continue VOLTAGE CALIBRATION- STEP 5 This window shows the measurement result and allows the user to Save or Cancel the calibration. The instrument box shows the current read value with use of the new calculated calibration constants Press Save button to save the new calibration constants, a window will pop-up where you type the password ( elcon at delivery), date and signature. After the calibration constants are saved the same window appear again where you can choose if you like to Re-calibrate or Close the calibration guide. Press button Cancel to close the calibration without saving new calibration constants. 7.5 CALIBRATION WIZARD CURRENT OUTPUTS (RE SISTANCE) After pressing the command button Calibration Wizard the window for the first step will be displayed. This window is used to select input(s) that shall be calibrated. An indirect method is used for current calibration. The voltage inputs and a calibrated current shunt are used as reference at calibration of current. Select the option button for the current output you like to calibrate. IMPORTANT! It is required that the voltage inputs are calibrated before calibration of current. See chapter 7.4 Calibration wizard - Voltage inputs for calibration of voltage inputs CURRENT CALIBRATION - STEP 3 This window is used to inform the user about the connection of the reference resistance. The instrument box shows the current read value from DCM-2 Disconnect any connected resistance to the current terminals (Open circuit) Press button Next to continue.

18 D.C.M Dynamic Contact Measurement User Manual page 17(22) CURRENT CALIBRATION - STEP 4 This window is used to inform the user about the connection of the reference resistance Make connections for an ordinary resistance measurement. Connect a reference resistance ( ohm) to the current output cables. Connect the voltage measurement points on the reference resistor to the corresponding voltage inputs on the DCM-2 Type the value of the reference resistor in the text box Press button Next to make an ordinary resistance measurement CURRENT CALIBRATION - STEP 5 This window shows the measurement result and allows the user to Save or Cancel the calibration. Press Save button to save the new calibration constants. A window will pop-up where you type the password elcon, date and signature. After the calibration constants are saved the same window appear again where you can choose if you like to Re-calibrate or Close the calibration guide. Press button Cancel to cancel the calibration without saving new calibration constants 8. TRANSPORTATION/SCRAPPING/RECYCLING Before transportation remove all cables from DCM-CU and DCM-2 units when moving/transportation the equipment. Put the units and cables in intended locations in the test case Scrapping/Recycling of replaced components shall be done according to local rules and laws

19 D.C.M Dynamic Contact Measurement User Manual page 18(22) 9. SPECIFICATIONS The DCM units are used to perform dynamic contact measurements for High Voltage Circuit Breakers in sub stations with both side grounded. Static resistance measurement can also be performed for breakers with two contact element in series, both side grounded and the middle point not grounded. To be able to perform Static resistance measurement for breakers with one breaking element, only one side can be grounded. 9.1 DCM CU TECHNICAL SPECIFICATION Power supply Quantity 1 Marked Input Connector type IEC 950 entry module Fuses 2*2.5A slow Voltage range VAC, 50/60 Hz, Max70W Control output Quantity 3 Marked DCM UNIT 1, DCM UNIT 2, DCM UNIT 3 Connector type M12, 8 pole Female Standard IEC Manufacturer Phoenix contact Output voltage 18-24VDC Max output current 2.5A Communication RS485, baud rate K Baud Trig signal 5-24VDC Communication PC Quantity 1 Marked RS232 TO COMPUTER Connector type 9-pole D-sub, female Communication type RS232, baud rate K Baud Isolation 1000 V DC Communication SA Quantity 1 Marked RS-232 TO SWITCH ANALYZER Connector type: 9-pole D-sub, male Communication type: RS232, baud rate K Baud Isolation: 1000 V DC Communication Network Quantity 1 Marked ETHERNET Connector type: RJ45 Communication type: ETHERNET 100 Mb/s Communication Bluetooth Quantity 1 Marked BLUETOOTH Connector type BLUETOOTH ANTENNA SMA MALE Communication type Serial communication via Bluetooth version 2.1 Communication protocols Support for version Enhanced Data Rate (EDR) Backward compliant with Bluetooth version 2.0, 1.2, 1.1 Scope < 100 meters (Line of sight) Baud rate K baud Data size 8-bit Parity None Stop bits 1 Flow control None Environment Dimensions 165*50*175 (With*Height*Depth) Weight about 1.2 kg Operating temperature C Storing temperature C Relative humidity 20-85% non-condensing Altitude operating < m Altitude non-operating < m

20 D.C.M Dynamic Contact Measurement User Manual page 19(22) 9.2 DCM 2 TECHNICAL SPECIFICATION Control input Quantity 1 Marked CONNECT TO CONTROL UNIT Connector type M12, 8 pole Male Standard IEC Manufacturer Phoenix contact Charge voltage 18-24VDC Max charge current: 2.5A Communication RS485, baud rate K Baud Trig signal: 5-24VDC Current output Quantity Return Marked + CURRENT 1, + CURRENT 2, - CURRENT 1, 2 Connector type High current sockets with locking, nom 100A type: ID/B6AR-N-S (Manufacturer: Multi Contact) Output 0-1.6VDC, 0-225A (Depends of cable resistance) Current pulse time: max 200ms Current limitation: By cable resistance. Voltage Sense Input Quantity Reference Marked + SENSE 1, + SENSE 2, - SENSE 1, - SENSE 2 Connector type Isolated banana socket Measurement range 1 ± 0.15VDC Analog resolution 1 14 bits Resolution about 0, V DC / Bit Measurement range 2 ± 1.5VDC Analog resolution 2 14 bits Resolution about 0, V DC / Bit Measuring resistance Range1 750 µω ± 1 200A Measurement range mω ± A Measurement range mω ± 10 < 200A Sample rate 50KHz Environment Dimensions 165*50*175 (With*Height*Depth) Weight about 1.6 kg Operating temperature C Storing temperature C Relative humidity 20-85% non-condensing Altitude operating < m Altitude non-operating < m

21 D.C.M Dynamic Contact Measurement User Manual page 20(22) 9.3 DCM KIT (ITEM NUMBER S160) INCLUDES DCM CU Quantity 1 Dynamic Contact Monitoring DCM CU S161 DCM 2 Quantity 3 DCM Measuring unit S162 Connection cable DCM-2 Quantity 5 Multi cable 8 pole M12 plug in connector Standard IEC Manufacturer Phoenix contact Part number SAC 8P-M12MS/10- PUR/M12FS SH Length 10 meters S163 Connection cable, breaker T element Quantity 6 special designed cable for current and voltage drop measurement. Length 3 meters S171 Connection cable, breaker base Quantity 3 special designed current and reference for voltage drop measurement. Length 0.3 meters S170 Mains power connection Quantity 1 Standard Europe mains power cord Type CEE 7/7 to IEC C13 250V/10A, L=2m Length 2 meters S201 Ferrite for mains power cord Quantity 1 Broadband EMI Ferrite Split/Snap-On Core in Plastic Cases Value MHz Manufacturer Laird Technologies Part number 28A0640-0A2 Weight 24 Grams Serial connection cable DB9 Quantity 2 Standard RS232 cable DB9 male/female Length 2 meters S202

22 D.C.M Dynamic Contact Measurement User Manual page 21(22) Bluetooth antenna Quantity 2 Broadband RP-SMA Value MHz Manufacturer Laird Technologies Part number MAF94028-WRR2400-RPSMA-B Frequency GHz Gain 1.3 dbi (2.45 GHz) Polarization Vertical, Omnidirectional Nominal Impedance 50 ohms VSWR 2:1 max across all bands Size Length or USB Bluetooth 2.1 EDR stick Quantity 1 BLUETOOTH 2.1 USB ADAPT, CLS1, ANT, IVT Manufacturer LM TECHNOLOGIES Part number LM Connector type USB2 and BLUETOOTH ANTENNA SMA MALE Communication type Serial communication via Bluetooth version 2.1 Communication protocols Support for version Enhanced Data Rate (EDR) Backward compliant with Bluetooth version 2.0, 1.2, 1.1 Scope < 100 meters (Line of sight) S202F Export restrictions This product is subject to export control when exported from the European Union. Valid countries outside the E.U. is Australia, Japan, Canada, New Zeeland, Norway, Switzerland, Liechtenstein and USA. Transporting case Quantity 1 With wheels and retractable handle S113 Soft cable bag Quantity 1 Bag for cables S114 DCM2 Fastening kit Quantity 3 Hanging straps S172

23 D.C.M Dynamic Contact Measurement User Manual page 22(22) 9.3 DECLARATION OF CONFORMITY 10. REVISIONS Revision 0 Date Revision 1 Date Revision 2 Date Revision 3 Date Revision 4 Date