CONCORD EOCR. Electronic Overload Relays... SAY GOODBYE TO MOTOR FAILURES. U NABCB QM 030 ISO 9001 : 2008

Transcription

1 SAY GOODBYE TO OTOR FAILURES Electronic Overload Relays... EOCR U NABCB Q 030 ISO 900 :

2 has been the pioneer of the Electronic otor Protection technology in the Indian market with innovative and useful products for the Industry since 997. We design build and supply a vast array of Electronic Protection Relays and our vision is to become the best supplier for otor protection and otor management for its customers nationwide. We will continue to offer the best technology at most competetive prices to our users to help them stay abreast with the most demanding and competetive enviornments globally. We will also strive to attain service and distribution levels for our Protection Relays that will set a new benchmark for the customers satisfaction. As always our focus will be to assist our customers in acheiving their goals of safely uring the finite natural resources before it s too late and help save on precious natural reserves and expensive down times in their respective industries thereby reducing our carbon footprints for our next generations. Our products always have and will be designed to last very long and continuously work to protect your energy, materials & manpower costs. Keeping in mind our local working conditions at various locations across the country the products we will supply to our customers will be world class. In our efforts, we hope to serve our customers to their exacting requirements and with our Quality anagement systems based on ISO we gaurantee the highest quality products and services. anufactured under stringent Quality procedures all our products conform to latest relevant international standards. OVERVIEW The 3 Phase Electric otor, is the workhorse of every industry and failure to notice unwarranted conditions can lead to disastrous results. The entire range of Electronic otor Protection Relays offered by are chosen carefully based on our experience and understanding of the needs of different users. All models offered by us are unique and different from each other in terms of Protections offered and principle of operation so that the user has the unique advantage of choosing the right product for their applications. By choosing the right protection device, users can ensure longer life from their motors and avoid untimely failures resulting in loss of manpower, materials and natural resources like copper for rewinding procedures. Despite having conventional electro mechanical products for motor protection, it is a known fact that notor failures are quite common and lead to execcesive costs, downtime and loss of materials in process. which are far greater than the cost of the motor and allied protection equipment. In the kind of conditions that prevail in our industry, it is not uncommon to have Over or Under Voltage, Loss of one Phase, Change of Phase Sequence, Bearing failures due to high levels of dust and pollution, Over heating, Jamming or stalling of rotors, Very frequent start stop operation of motors, Initial High Torque requirements etc All of these conditions lead to premature motor failures and fault diagnosis is seemingly not possible after the motor has failed, because most of the times the failed part is a result of another unattended problem which was not addressed on time. As there is not much data to confirm exact cause of otor failures, it makes it even more imperative to move from Reactive and Preventive maintenence to Diagnostic and Predictive maintenence to save on valuable resources and time. Here is why Electronic otor Protection Relays are more useful to the industry hereby saving precious resources, time and money.

3 Electronic Overload Relays... CAUSES OF OTOR FAILURE IN INDUSTRY - GENERAL otor Failure Data Shaft Coupling Unknown External Stator Winding Bearing Loss of Phase SALIENT FEATURES Compact Design 2/3 Integral Current Transformers ultiple Protection Features Wide Current Ajustment Range Solid State / U based Circuits Ammeter Function Trip Indication/ Fault Diagnosis Highly Accurate Looping Options anual/ Electrical Remote Reset Test Function Suitable for use with External CT s upto 600A Ambient Insensitive Low Energy Consumption D-TIE (Starting Delay Time) The D-Time is the time taken by the motor before it reaches it s normal running current. During start the motor draws much higher levels of current and the D-Time setting is to ensure that the EOCR does not cause any nuiscance trippings before this set time has elapsed. After the D-Time setting is over the relay monitors the normal running currents. O-TIE ( Operating Time on Overload) O-Time is the operating time in the event of overload. When motor current exceeds the desired set current value, the EOCR detects the increase and trips the motor within the set O-Time preventing excess heating and long periods of overload. TEST FUNCTION The TEST function facility on the front face of the relay is provided to check the health status of the relay without electrically energizing the relay. On pressing the TEST button the internal relay will trip after the D-Time + O-Time settings have elapsed. After using this test facility, the RESET button has to be pressed to operate the relay Looping Option Looping option is required in case the amount of current measurement is desired to be more accurate and precise. The wire from the main line when passing through the Internal EOCR CT is looped one or more times depending upon the current range of the relay to suit the application. RESET FUNCTION By pressing the RESET button or disconnecting the electrical supply will trip the relay immediately. Once the relay has tripped due to any Over Load or any other fault, the relay has to be reset to start the motor again. EXTERNAL CT OPTION By usinf External CT s with ondary rating of 5A the EOCR can be ised to monitor and protect motors with normal running currents of upto 600A. This is used with an 05 Type relay with current setting range of 0.5-6A. In Digital models the display current values are selectable as desired. Setting Ranges [A] x 2x 3x 4x 5x -05 0,5-6 0,25-3 0,7-2 0,3-,5 0,-, , TIE, , 83-,7-20 D-Time 0,83-7,5,25-5 0, Normal Load CURRENT O-Time TRIP Full Load Current Set Current

4 EOCR SS - SOLID STATE PROTECTION RELAY PROTECTION FUNCTIONS Overcurrent Phase Loss Locked Rotor WIRING DIAGRA L O-Time O-Time O-Time + D-Time FEATURES 2 Integral Current Transformer s Electronic Shear Pin Function Independently Adjustable D-Time and O-Time Independent ounting Tr. ON OFF/RESET SPECIFICATIONS Current Setting Type Range A A A 0A and above With External CT Time Setting Start(D-Time) Trip (O-Time) 0.2- Control Voltage VAC VAC Contact Rating ode SPDT(C) Rating 3A 250VAC Status Normally Energized Time Current Characteristic Definite Operating (Trip Indication) 2 LED ounting 35mm DIN Rail/Base APPLICATIONS LT otors, Pumps, Fans, achine Tools, OE's Panels etc. OVERALL DIENSIONS 65 EOCR SS 54 L TRIPPING CHARACTERISTIC - DEFINITE DIN RAIL TYPE BRACKET HOLE SIZE TIE ( ) Adjustable 30 TRIPPING CHARACTERISTIC - DEFINITE Refer to Curve for EOCR SS on Right hand side Current ultiples of Current Setting

5 Electronic Overload Relays... EOCR DS - U BASED PROTECTION RELAY PROTECTION FUNCTIONS Overcurrent Phase Loss Locked Rotor Phase Reverse O-Time Within 4 onds Within D-Time 0. WIRING DIAGRA FEATURES 3 Integral Current Transformers Independently adjustable D-Time and O-Time Independent ounting Run onitor and Fault Diagnosis with 2 LED s SPECIFICATIONS Current Setting Type Range A A A 0A and above With External CT Time Setting Start(D-Time) - 50 Trip (O-Time) 0.2- Control Voltage VAC Contact Rating ode SPDT(C) Rating 3A 250VAC Status Normally Energized Time Current Characteristic Definite Operating (Trip Indication) 2 LED with Fault Diagnosis ounting 35mm DIN Rail/Base APPLICATIONS LT otors, Pumps, Fans, achine Tools, OE's Panels etc. L EOCR DS3 OVERALL DIENSIONS L N 39 R Tr. 8 TRIPPING CHARACTERISTIC - DEFINITE TIE ( ) Adjustable ON OFF/RESET R 2.5 R OUNTING BRACKET TRIPPING CHARACTERISTIC - DEFINITE Refer to Curve for EOCR DS on previous on right hand side Current ultiples of Current Setting

6 ELECTRONIC PROTECTION RELAYS WITH DIGITAL DISPLAY AND FAULT DIAGNOSIS INTRODUCTION The complete range of Digital otor Protection Relays from are designed for use with 3 Phase motors. The inherent design features are built to make otor protection far easier and more accurate. The Digital Diplay works as an Ammeter dsiplaying the actual motor current and also acts as Diagnostic Display highlighting the various causes of motor tripping to assist the user in trouble shooting and drastic reduction in downtime whenever an Electrical fault occurs in the system. These relays are built using a U - icroprocessor Control Unit and are suitable for use for a very wide range of appli cations and motor sizes. The Test function button enables the user to use the same model for motor sizes ranging from 0.5A - 600A. There by resulting in drastic reducion of inventories. Insensitive to the Ambient temperatures and designed to suit local conditions these Relays offer you Total otor Protection and gaurantee peace of mind. UNDERSTANDING THE DISPLAY SYSTE Digital Display for Fault Diagnosis and Current Display Under Normal conditions the actual motor current in all 3 phases is displayed sequentially The LED signals the value of the Display items in eres or onds Setting Adjustment Button to set different Values for Current and Time Reset button to reset the Relay in case of test or actual Trip Adjust Values of Current and Time during inital set up before start

7 Electronic Overload Relays... UNDERSTANDING THE DISPLAY SYSTE LED Phase Indication L// L LED PROTECTION FUNCTIONS - ampere x - ond 0% Bar graph Seven Segment Display(SSD) 3 Phase otor Currents/ Leakage Current in 3EZ model are displayed sequentially on the LED Display as indicated below 3 90 L x Over Current Trip detected in L phase L Under Current Trip detected in phase L Phase Loss Trip caused by phase failure L Reverse Phase Trip caused by wrong phase sequence L Phase Unbalance Trip caused by phase unbalance in L phase L Ground Fault Trip caused by ground fault current only for EOCR 3EZ L Locked Rotor Trip caused by Locking/ Jammimg of rotor during starting state L Locked Rotor Trip caused by Locking/ Jammimg of rotor while motor is working L L Current Display 5 L x L 5 Current Display 3 90 x L Current Display EOCR 3DE model 3 90 L x L 5 L Current Display 3 80 L Current Display L x x Ground fault Current Display L x Current Display EOCR 3EZ model TIE Vs CURRENT CHARACTERISTIC CURVE - USER SELECTABLE TIE () TIE ( ) Adjustable 000 HOT COLD CURRENT ultiples of Current Setting INVERSE CURVE with SW3-INV/On Position O-T Setting Curve IEC Trip Class A A 20A 30A Current ultiples of Current Setting DEFINITE CURVE with SW3-DEF/Off Position

8 EOCR 3DE/3EZ DIGITAL ICROPROCESSOR BASED PROTECTION RELAY EOCR 3DE PROTECTION FUNCTIONS Protection 3DE 3EZ Trip Time Trip Time Overcurrent O-Time O-Time Undercurrent Phase Loss 3 3 Phase Unbalance 8 8 Phase Reverse Locked Rotor D-Time D-Time Ground Fault NA EOCR 3EZ FEATURES U Based Design 3 Integral Current Transformers ultiple Protection Features Digital Ammeter and Fault Diagnosis Wide Current Adjustment range User selectable Time Current curves - Definite/Inverse anual/remote reset Ambient Insensitive Alert Function before trip SPECIFICATIONS 3DE 3EZ Current Setting 05/60A 05/60A Above 60A With Suitable External CT Ground Fault setting NA A:0.02-3A, B:0.2-A Alert Setting 5-0%/OFF NA Start Delay Time (D-Time) -200 Trip Delay Time INV -30 (O-Time) DEF Control Voltage VAC/220VAC Contact Rating 2 SPST 3A/250V Resistive Trip Time INV/DEF- Refer to previous page Characteristic Fault Diagnosis 7 segment LED Display ounting 35mm DIN Rail/Base SET UP INSTRUCTIONS ODE SET ADJUST STORE RESET DN DN SET STORE SET STORE RESET UP UP Select the parameter you want to set or adjust by pressing UP and DN buttons Press the SET/STORE button once for the parameter to be set to reach flickering in the display, which means that the new values can now be set. Select required parameter values by pressing UP and DN button untill the desired value is acheived Store the new values or settings by pressing the SET/STORE button once and the flickering will stop immediately which means the new value is now set. After all setting values are completed, press the RESET button once before operating motor. Other wise the display will reset automatically in 30 OVERALL DIENSIONS DIN RAIL TYPE

9 Electronic Overload Relays... WIRING DIAGRA FOR EOCR 3DE L FUSE * Tr. OFF RESET ON ALERT TRIP EOCR 3DE A A A EOCR -3DE OL/ UL 08 AL/ UL R G STOP A WIRING DIAGRA FOR EOCR 3EZ L FUSE Tr. RESET OFF ON EOCR 3EZ Z(k) Z2(k) A A2 Z Z A A2 EOCR -3EZ Z OL/UL Z2 97 Aux Aux GR ~ 57 R G Y Stop Run Trip/GR Aux

10 EOCR SSD DIGITAL ICROPROCESSOR BASED PROTECTION RELAY PROTECTION FUNCTIONS Overcurrent Phase Loss Locked Rotor O-Time Within after D Time has elapsed FEATURES 2 CT based Digital Protection Relay Current Display of ax. current in any phase Highly accurate protection for Locked Rotor Compact Size and Ambient Insensitive Independent settings for D-Time and O-Time SPECIFICATIONS Current Setting A A A Starting Delay Time -30 (D-Time) Operating Time - (O-Time) Reset anual/remote Overcurrent Trip Definite Control Voltage V AC/220V AC Contact Rating 2SPST 3A/250V AC Resistive Fault Diagnosis 7 Segment LED Display ounting 35mm DIN Rail/Base APPLICATIONS OVERALL DIENSIONS TYPICAL WIRING L Fuse Tr A2 A ON OFF (RESET) EOCR SSD N TYPE L Fuse Tr. OFF (RESET) ON A2 A EOCR SSD R TYPE

11 Electronic Overload Relays... EUCR - SOLID STATE - ELECTRONIC UNDER CURRENT RELAY OVERALL DIENSIONS DIN RAIL TYPE PROTECTION FUNCTIONS Undercurrent U-Time 63 FEATURES 2 Integral Current Transformer s Underload/ Dry Run Protection Wide Current Adjustment Range Definite Trip Time charcateristic anual/ Remote Reset WIRING DIAGRA L BRACKET HOLE SIZE Tr. SPECIFICATIONS Current Setting Type Range A A A 0A and above With External CT Time Setting Trip Time Control Voltage VAC VAC Contact Rating ode SPDT(C) Rating Status 3A 250VAC Normally Energized Time Current Characteristic Definite Operating (Trip Indication) LED ounting 35mm DIN Rail/Base APPLICATIONS Belt Driven Systems, Pumps, Fans, achine Tools, OE's, Panels etc. ON EUCR SS L TRIPPING CHARACTERISTIC - DEFINITE TIE ( ) Adjustable OFF/RESET Current ultiples of Current Setting

12 All Specifications, images and photos are proprietary and cannot be used without the owners permission. Specifications subject to change without any notice. All Information given in this document is for reference purpose only and cannot be used against the company. AUTOATION & CONTROLS G 43, DLF Industrial Estate, Faridabad 203 Haryana (INDIA) Phone : , obile : Fax : Available in your area with: info@cacindia.net Website :