Embed Size (px)
Citation preview
INTELLIGENT
EARTH FAULT RELAY
iEFR
FOR A SEAMLESS,
PROTECTION AGAINST EARTH
FAULT AND OVER LOAD/EARTH
TO NEUTRAL VOLTAGE
PRG
EFR 400Earth Fault Relay
COM
30sA
sA
SET A
MPS
SET TIMEsTsT
TESTRESET
www.elmeasure.com
Contact for certification details
True RMS measurement.
Common protection for earth fault and over load
Clearance and creepage distance meets UL 61010 safety
standard.
Inverse curve - trip time is inversely proportional to fault
current. This EFR is Intelligent, when the fault current is 10
times higher than the set current, it trips 10 times faster.
Field programmable trip current and trip time through front
panel keys with password protection.
Continuous fault current display (Programmable) - fault
current continuously displayed to enhance the user to
understand the quality of electrical network / machine
online.
Continuous display of trip fault current (Programmable) - In
case of tripping, iEFR captures and displays the tripped
current with 4 digit resolution, which helps the user to
analyze and correct the problem.
Continuous scrolling display for set current and set time.
Wide input range 30mA to 5A and the trip time
programmable from 50ms to 30 seconds.
Manual test and reset keys.
RS485 communication option.
Features:
Microcontroller based design.
Password protection.
Current sensitivity wider range 30mA - 5A.
Programmable trip time 50ms - 30 sec.
Selection through soft keys (No DIP switches).
Continuous earth fault value display.
Intelligent tripping based on T 1/A or definite time
Auto scrolling of trip Info. & peak fault current.
SMT reflow manufacturing process.
Benefits:
Higher technological advantage.
Helps analysis and corrective action.
Security against mishandling.
No limitations on set current.
Wider choice to suit different industry
Better IP protection and longer life.
Helps online loss analysis.
Faster and reliable protection.
Better analysis.
Higher reliability.
Unique Features:
Technical Specification:
Specification Description
Accuracy: Class 2.0FS, Time delay ±5% with minimum of 50 ms.
Auxiliary voltage: 80 - 300 V AC / DC.
Input current: Programmable 30mA - 5A, Over current 30A.
Tripping time: Programmable for fault current, 30 MA to SA
Setting ranges: Low-set (I >) : 0.05A to 5.0ALow-set time (kt >) : 0.05, 0.1, 0.2, 0.3, 0.5, 1.0, 2.0, ......, 30 sec.High-set (I >>) : 0.1A to 30A or disable.High-set delay time (t >>) : 0.05 sec. to 30 sec.
Relay contacts: Two pair of potential free NO & NC contacts. One part to EFR 200D
Contact Rating: 2 or 4 Amps @ 240V AC / 24V DC.
Mounting Type: Flush or Dinrail
Communication: Rs485 serial channel connection industry standardModbus RTU protocol.Baud rate: 4800 bps to 19200 bps. (Preferred 9600 bps).Isolation: 2000 volts AC isolation for 1 minute betweencommunication and other circuits.
Tripping
Characteristics:
10sA
Protects control panels and switch boards from earth fault.
Protects motors / transformers / feeders / generators etc.,
from earth fault.
Hazardous and sensitive industries like oil refineries / pulp
industries / electrical distribution etc., can be protected.
Applications:
PC/IEFR/V1/1017
Range of Products: Building Energy Management System (BEMS) | EMS | Demand Controller | Multifunction Meters | Electronic Energy Meters | Dual Energy Meter | Digital Panel Meters
| Automatic Changeover with Current Limiter (ACCL) |Power Factor Controller (PFC) | Earth Leakage Relay (ELR) | Earth Fault Relay (EFR) | Gateway | Branch Monitoring Unit | Smart Input
Output | Transducers | Converters
Sales Offices: BANGALORE | CHENNAI | COIMBATORE | MUMBAI | DELHI | HYDERABAD | USA | UAE
HO & Unit-I:
Plot No.: 47-P, Hardware Park, KIADB,
Huvinayakanahalli, Jala Hobli, Yelahanka Taluk,
Bengaluru - 562149 Karnataka INDIA.
Unit-II:
Goutham Garden, No. 4, Veerapandi,
Coimbatore - 641019 Tamilnadu INDIA
T: 0422 2697200 TF: 0244 2695200
Unit-III:
#764, 4th Phase, 707, Yelahanka New Town,
Bengaluru - 560 064 Karnataka INDIA
T: +91 80 28461744
ELMEASURE INDIA PRIVATE LIMITED
ECO friendly lead free 18 months warranty
