concord - twothirds · pdf fileeocr say goodbye to motor ... entire range of electronic motor...

CONCORD

http://www.cacindia.net

ISO 9001 : 2008

NABCBQ M 0 3 0

U®

Electronic Overload Relays...Electronic Overload Relays...

EOCR

SAY GOODBYE TO MOTOR FAILURES

CONCORD

CONCORD has been the pioneer of the Electronic Motor Protection technology in the Indian market with innovative and useful products for

the Industry since 1997. We design build and supply a vast array of Electronic Protection Relays and our vision is to become the best supplier

for Motor protection and Motor 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 securing 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 Management systems based on ISO 9001

2008 we gaurantee the highest quality products and services. Manufactured under stringent Quality procedures all our products conform to

latest relevant international standards.

OVERVIEW

The 3 Phase Electric Motor, is the workhorse of every industry and failure to notice unwarranted conditions can lead to disastrous results. The

entire range of Electronic Motor Protection Relays offered by CONCORD 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 Motor 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 Motor Protection

Relays are more useful to the industry hereby saving precious resources, time and money.


SALIENT FEATURES

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Compact Design

2/3 Integral Current Transformers

Multiple Protection Features

Wide Current Ajustment Range

Solid State / MCU based Circuits

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Ammeter Function

Trip Indication/ Fault Diagnosis

Highly Accurate

Looping Options

Manual/ Electrical Remote Reset

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Test Function

Suitable for use with External CT’s upto 600A

Ambient Insensitive

Low Energy Consumption

D-TIME (Starting Delay Time)

O-TIME ( Operating Time on Overload)

TEST FUNCTION

Looping Option

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-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.

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 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

EXTERNAL CT OPTION

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.

By usinf External CT’s with secondary 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.

CAUSES OF MOTOR FAILURE IN INDUSTRY - GENERAL

Shaft Coupling

Unknown

External

Stator Winding

Loss of Phase

Bearing

Motor Failure Data

[A] 1x 3x2x 4x 5x-05

-30

-60

0,5-6

2,5-30

5-60

0,25-3

1,25-15

5-60

0,17-2

0, 83-10

1,7-20

0,13-1,5

0,83-7,5

1,25-15

0,1-1,2

0,5-6

1-12

Setting Ranges

Full Load Current

Set Current

TR

IP

D-Time

Normal Load

O-Time

CURRENT

TIM

E

EOCR SS - SOLID STATE PROTECTION RELAY

CONCORD

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2 Integral Current Transformer’s

Electronic Shear Pin Function

Independently Adjustable D-Time and O-Time

Independent Mounting

SPECIFICATIONS

Current Setting Type Range

05 0.5-6A

30 3-30A

60 5-60A

100A and above With External CT

Time Setting Start(D-Time) 0.2-30sec

Trip (O-Time) 0.2-10sec

Control Voltage 220 90-260VAC

440 320-480VAC

Contact Rating Mode 1SPDT(1C)

Rating 3A 250VAC

Status Normally

Energized

Time Current

Characteristic Definite

Operating

(Trip Indication) 2 LED

Mounting 35mm DIN Rail/Base

TRIPPING CHARACTERISTIC - DEFINITEAPPLICATIONS

PROTECTION FUNCTIONS

Overcurrent O-Time

Phase Loss O-Time

Locked Rotor O-Time + D-Time

WIRING DIAGRAM

Tr.

L1

L2

95

96

98

EO

CR

SS

M

MC

MC ON

OFF/RESET

L1 L2 L3

OVERALL DIMENSIONS

54

54

63

65

44

16

10

5 - M3.58.4DIN RAIL TYPE

5

BRACKET HOLE SIZE

FEATURES

TIME ( sec)

Adju

sta

ble

Current

0.21

0 1 2 3 4 5 6

30

TRIPPING CHARACTERISTIC - DEFINITE

Refer to Curve for EOCR SS on Right hand side Multiples of Current Setting

LT Motors, Pumps, Fans, Machine Tools, OEM's Panels etc.


EOCR DS - MCU BASED PROTECTION RELAY

OVERALL DIMENSIONS

FEATURES

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3 Integral Current Transformers

Independently adjustable D-Time and O-Time

Independent Mounting

Run Monitor and Fault Diagnosis with 2 LED’s

SPECIFICATIONS

Current Setting Type Range

05 0.5-6A

30 3-30A

60 5-60A

100A and above With External CT

Time Setting Start(D-Time) 1 - 50sec

Trip (O-Time) 0.2-10sec

Control Voltage 220 180-260VAC

Contact Rating Mode 1SPDT(1C)

Rating® 3A 250VAC

Status Normally

Energized

Time Current

Characteristic Definite

Operating

(Trip Indication) 2 LED with Fault Diagnosis

Mounting 35mm DIN Rail/Base


Refer to Curve for EOCR DS on previous on right hand side


Overcurrent O-Time

Phase Loss Within 4 seconds

Locked Rotor Within D-Time

Phase Reverse 0.1sec

WIRING DIAGRAM

L1

L2

95

96

97

98

N

R

MC

MC

EOCR DS3

M

L1 L2 L3

Tr.

OFF/RESET

ON

58

46

12

10

76-M3.5

39

69

81

28

48

R 2.5 R 2.2

MOUNTING BRACKET

APPLICATIONSTRIPPING CHARACTERISTIC - DEFINITE

TIME ( sec)

Adju

stable

Current

0.21

0 1 2 3 4 5 6

30

Multiples of Current Setting

LT Motors, Pumps, Fans, Machine Tools, OEM's Panels etc.

CONCORDELECTRONIC PROTECTION RELAYS WITH DIGITAL DISPLAY AND FAULT DIAGNOSIS

INTRODUCTION

The complete range of Digital Motor Protection Relays from

CONCORD are designed for use with 3 Phase motors. The

inherent design features are built to make Motor 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 MCU - Microprocessor 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 Motor Protection and

gaurantee peace of mind.

UNDERSTANDING THE DISPLAY SYSTEM

Digital Display for

Fault Diagnosis and

Current Display

Under Normal

conditions the actual

motor current

in all 3 phases is

displayed

sequentially

Adjust Values

of Current and Time

during inital set up

before start

The LED signals the

value of the Display

items in Amperes

or seconds

Reset button to reset

the Relay in case of test

or actual Trip

Setting Adjustment

Button to set different

Values for

Current and Time


TIME ( sec)

Adju

stable

CurrentMultiples of Current Setting

0.21

0 1 2 3 4 5 6

30

5 5

10 10

20 20

30 30

0.1

1

1 2 4 6 8 10

10

100

1000

10000TIME (sec)

CURRENTMultiples of Current Setting

HOT

COLD

UNDERSTANDING THE DISPLAY SYSTEM

3 Phase Motor Currents/ Leakage Current

in 3EZ model are displayed sequentially

on the LED Display as indicated below

EOCR 3DE model

EOCR 3EZ model


L1L2L3

Amp

sec

L1L2L3

Amp

sec

L1L2L3

Amp

sec

L1L2L3

Amp

sec

L1L2L3

Amp

sec

L1L2L3

Amp

sec

L1L2L3

Amp

sec

L1L2L3

Amp

sec

Over Current Trip detected in L1 phase

Under Current Trip detected in L2 phase

Phase Loss Trip caused by L2 phase failure

Reverse Phase Trip caused by wrong phase sequence

Phase Unbalance Trip caused by phase unbalance in L1 phase

Ground Fault Trip caused by ground fault current only for EOCR 3EZ

Locked Rotor Trip caused by Locking/Jammimg of rotor during starting state

Locked Rotor Trip caused by Locking/Jammimg of rotor while motor is working

8 8 8 8L1L2L3

LED LED

Seven Segment Display(SSD)

65 70 75 80 85 90 95 100%

PhaseIndicationL1/L2/L3

Bar graph

Amp - amperex 10sec - second

Amp

x 10

sec

L1

L2

L3 3 90L1 Current Display

5 sec5 sec

Amp

x 10

sec

L1

L2


Amp

x 10

sec

L1

L2


Amp

x 10

sec

L1

L2


Amp

x 10

sec

L1

L2


Amp

x 10

sec

L1

L2


Amp

x 10

sec

L1

L2

L3 8 19Ground fault Current Display

5 sec

5 sec 5 sec

5 sec

5 sec

TIME Vs CURRENT CHARACTERISTIC CURVE - USER SELECTABLE

O-T Setting Curve IEC 947-4 Trip Class

1 - 5 10A 6 - 10 10A 11 - 20 20A 21 - 30 30A

INVERSE CURVE with SW3-INV/On Position DEFINITE CURVE with SW3-DEF/Off Position


Protection 3DE 3EZ

Trip Time Trip Time

Overcurrent O-Time O-Time

Undercurrent 0.5-30 sec 0.5-30 sec

Phase Loss 3 sec 3 sec

Phase Unbalance 8 sec 8 sec

Phase Reverse 0.1-0.3 sec 0.1-0.3 sec

Locked Rotor D-Time D-Time

Ground Fault NA 0.05-10 sec

EOCR 3DE EOCR 3EZ

FEATURES

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MCU Based Design

3 Integral Current Transformers

Multiple Protection Features

Digital Ammeter and Fault Diagnosis

Wide Current Adjustment range

User selectable Time Current curves - Definite/Inverse

Manual/Remote reset

Ambient Insensitive

Alert Function before trip

SPECIFICATIONS 3DE 3EZCurrent Setting 05/60A 05/60AAbove 60A With Suitable External CTGround Fault setting NA A:0.02-3A, B:0.2-10AAlert Setting 5-100%/OFF NAStart Delay Time (D-Time) 1-200 secTrip Delay Time INV 1-30 sec (O-Time) DEF 0.2-30 secControl Voltage 110VAC/220VACContact Rating 2 SPST 3A/250V ResistiveTrip Time INV/DEF- Refer to previous pageCharacteristicFault Diagnosis 7 segment LED DisplayMounting 35mm DIN Rail/Base

SET UP INSTRUCTIONS

DN UPSelect 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.

DN UP

After all setting values are completed, press the

RESET button once before operating motor. Other

wise the display will reset automatically in 30 sec

SET

STORE

SET

STORE

RESET

MODE

SET

ADJUST

STORE

RESET

OVERALL DIMENSIONS

EOCR 3DE/3EZ DIGITAL MICROPROCESSOR BASED PROTECTION RELAY

DIN RAIL TYPE70

10

16

53

71 59

15

7.5

CONCORD


WIRING DIAGRAM FOR EOCR 3DE

WIRING DIAGRAM FOR EOCR 3EZ

L1 L2 L3

FUSE Tr.*

MCE

OC

R 3

DE

M

RESETOFF MC

MCON

ALERTTRIP

R GMC

STOP

EOCR-3DE

A1

A2

96 98

95 97 07

08

OL/UL

AL/UL

A1

A2

95

96

97

98

07

08

EO

CR

3E

Z

A1

A2

Z1

Z2

97

98

57

58

L1 L2 L3

FUSE Tr.

MC Aux

MC RE

SE

T OFFMC

MC ON

R G Y

Stop Run

Aux

AuxTrip/GR

GROL/ULEOCR-3EZ

A1

A2

Z1

Z2 97

98 58

57

M

Z2(k)

Z1(k)

~

EOCR SSD DIGITAL MICROPROCESSOR BASED PROTECTION RELAY

FEATURES

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2 CT based Digital Protection Relay

Current Display of Max. current in any phase

Highly accurate protection for Locked Rotor

Compact Size and Ambient Insensitive

Independent settings for D-Time and O-Time


Overcurrent O-Time

Phase Loss Within 4 sec

Locked Rotor 0.5 sec after D Time

has elapsed

SPECIFICATIONSCurrent Setting 05 0.5-6A

30 3-30A60 5-60A

Starting Delay Time 1-30 sec (D-Time)Operating Time 1-10 sec (O-Time)Reset Manual/Remote Overcurrent Trip DefiniteControl Voltage 110V AC/220V ACContact Rating 2SPST 3A/250V AC ResistiveFault Diagnosis 7 Segment LED DisplayMounting 35mm DIN Rail/Base

APPLICATIONS

OVERALL DIMENSIONS

TYPICAL WIRING

8 8 8 8 CONCORD

12

6-M3.5

50

.81

9.5

58

51

62.2

10

77.2

L1 L2 L3

Fuse Tr.

MC MC

MC

ON

OFF(RESET)

A1A295969798

M EOCR SSD N TYPE

L1 L2 L3

Fuse Tr.

MC MC

MC

ON

OFF(RESET)

A1A295969798

M EOCR SSD R TYPE

CONCORD


EUCR - SOLID STATE - ELECTRONIC UNDER CURRENT RELAY

FEATURES

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2 Integral Current Transformer’s

Underload/ Dry Run Protection

Wide Current Adjustment Range

Definite Trip Time charcateristic

Manual/ Remote Reset

SPECIFICATIONSCurrent Setting Type Range

05 0.5-6A 30 3-30A 60 5-60A

100A and above With External CTTime Setting Trip Time 0.2 - 30 secControl Voltage 220 90-260VAC

440 320-480VACContact Rating Mode 1SPDT(1C)

Rating® 3A 250VAC Status Normally

EnergizedTime CurrentCharacteristic DefiniteOperating(Trip Indication) LEDMounting 35mm DIN Rail/Base

OVERALL DIMENSIONS

WIRING DIAGRAM



Undercurrent U-Time

APPLICATIONS

54

54

63

65

44

16

10

5 - M3.58.4DIN RAIL TYPE

5

BRACKET HOLE SIZE

Tr.

L1

L2

95

96

98

EU

CR

SS

M

MC

MC ON

OFF/RESET

L1 L2 L3

TIME ( sec)

Adju

stable

CurrentMultiples of Current Setting

0.21

0 1 2 3 4 5 6

30

Belt Driven Systems, Pumps, Fans, Machine Tools, OEM's, Panels etc.

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.

CONCORD AUTOMATION & CONTROLS

G 43, DLF Industrial Estate, 1 Faridabad

121003 Haryana (INDIA)

Phone : 0129 2278256, 2273860

Mobile : +91 9810659379

Fax : 0129 2273850

Email : [email protected]

Website : http://www.cacindia.net

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concord - twothirds · pdf fileeocr say goodbye to motor ... entire range of electronic motor...

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