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Zhuhai Guoce Electric Energy Instrument Technology Co., Ltd

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    No. 4, Third Street, Cuizhu Industrial Zone, Qianshan, Zhuhai City, Guangdong Province

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EKL4 panel type open circuit and ground fault indicator

NegotiableUpdate on 03/11
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Overview
Product model: EKL4
Product Details
Product Features
  • Intelligent detection of short circuits and grounding faults and corresponding actions through the panel;

  • LED indicates;

  • The panel adopts a membrane switch design, which facilitates resetting and self checking of the fault indicator device on site;

  • The pulse width time of the fault current can be set to prevent erroneous fault indication caused by surge current;

  • Can remotely reset and detect the fault indicator device;

  • It can provide switch values for external devices through remote signaling contacts;

  • Short circuit and ground fault automatic reset time can be pre-set;

  • Remote fault indication can be achieved through external devices;

  • Can set the short-circuit fault action current value;

  • Can set the grounding fault action current value;

  • Lithium battery power detection function;

  • RS-485 communication function (optional).


Application

This series of products can be widely used in various ring main units, high-voltage switchgear, and cable branch boxes in the power system, and can accurately and reliably detect the sections and types of faults in the power grid. The use of cable type short circuit and ground fault indicators is an efficient method for detecting cable faults and an effective way to improve the operation level and accident handling efficiency of the distribution network. Its design adopts technologies such as electromagnetic induction, photoelectric conversion, signal fiber transmission, and microcontroller control to make fault alarms highly accurate and have strong anti-interference ability; Equipped with a remote fault transmission port, suitable for distribution network automation; Equipped with a low battery warning indicator; Low power design, powered by high-capacity lithium batteries, with a long battery life (over 8 years); The external structure adopts card or lock design, making the whole machine easy to install and disassemble.



TECHNICAL INDEX
Applicable voltage level 3~40.5kV
Rated frequency 50 Hz
Short circuit alarm current 200A~1200A
Grounding alarm current 10A~200A
Alarm current accuracy ±10%
Rated power frequency withstand voltage 2kV/1min
Relay contact capacity ≤95W
Automatic reset time Four adjustable gears 2H/4h/8h/24h
Working power supply ER14505 lithium battery 3.6 V/2400mAh
Working current standby mode ≤10μA
working condition ≤1mA
indicator host IP40
protection grade Transducers IP65
Battery working life ≥ 8 years
Low battery warning voltage ≤2.7V
Short circuit sensor fiber length 2.5 meters, customizable
Grounding sensor fiber length 3 meters, customizable

Prevent load fluctuations and avoid them

Setting of surge avoidance time

Short-circuit fault 40ms, 60ms, 80ms, 160ms (optional)
ground fault
work environment temperature -40C~+60℃
humidity ≤95%RH
Applicable cable outer diameter Short circuit sensor (fiber optic) type a ¢ 20mm~40mm conventional
type B ¢ 30mm~70mm Specific
Grounding sensor(Fiber optic) type a ¢ 60mm~100mm conventional
type B ¢ 80mm~130mm Specific
Compliant with the industrial standard MODBUS communication protocol




Outline dimension diagram


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Wiring Terminal Diagram

接线端子图.png