Basic Info.
Range Conversion Type
AUTO/MAN RANGZ
Additional Measuring Item
Capacitance
Transport Package
with Carton
Product Description
SNV-EKL4 v2.1 Earth fault and short circuit indicatorType: cable type,surface mounted,battery 19000mHADescription SNV-EKL4 v2.1, Earth fault and short circuit indicator, it Widely used in various ring cabinets, high/ Medium or low -voltage switch gear and cable branch box in power system, can accurately and reliably detect the fault section and fault type of power grid in the Low/medium voltage network. The use of cable type grounding fault and short circuit indicator is an efficient way to check cable fault, and is an effective way to improve the operation level of distribution network and the efficiency of fault handling. The design uses electromagnetic induction, and single chip microcomputer control technology to make fault alarm with high accuracy and strong anti-interference ability.Equipped with fault remote transmission port, suitable for distribution network automation; Battery low power alarm indication; Low-power consumption design, high-capacity lithium battery power supply, long battery life (more than 10 years); external structure using card or lock design, the whole machine is easy to load and unload.Function character:- Intelligent detection of ground fault and through the corresponding LED (I0),on the display unit to indicate fault.
- Intelligent detection of short circuit fault of phase to phase and through the corresponding LED (L1, L2,L3),on the display unit to indicate fault.
3)Display unit designed with button, it is convenient for reset or test.4)The pulse width time of fault current (Response time) can be set to prevent incorrect fault indication caused by surge current through modbus of RS485 port.5)It can reset and detect the remote fault indication device remotely by SCADA or press key.6)It can provide switch volume for external devices through remote contact.7)It can change the reset time after fault happen through Modbus of RS485 port. (when purchase, it need to tell factory to set,default 8hours).8)Remote fault indicating can be made by external lamp.9)Earth fault alarm current (40/50/60/70/80/100/120/250A) Tripping current(350/400/450/500/550/600/650/700A),8-level can be settable through a DIP switch inside of the display unit.(optional). 10)Low battery display and alarm test through press the "Test/reset" key by 3seconds.11) Battery can be changeable conveniently, Big capacity 19000mHA,D- Size, ER34615.12) Sensor cable spec: NYAF,copper cable,(2x1.5 ) ,7 meters length.13) Support AC/DC power input, AC48-240V.14) Support Automatic Low voltage reset, AC>30V.Function description- Earth fault alarm indicating: when the earth fault sensor detected an earth fault current, and the current is bigger than equal to or equal to the setting value, then the earth fault sensor send a signal to display unit through electric cable. And the display unit will display the alarm signal, at same time, the earth fault LED will be blinking.
- Short circuit indicating: when the short circuit sensor detected an over current, and the current is bigger than equal to or equal to the setting value, then the short circuit sensor send a signal to display unit through electric cable. And the display unit will display the alarm signal, at same time, corresponding LED (L1, L2,L3) will be blinking to indicate the fault.
3) Battery low voltage alarm indicating: the display unit use the battery to supply power. When we press the "Test" button,3seconds time: If the battery voltage is lower than the working voltage Min.2.5V, then the Battery Level Led will be blinking 5 times; If battery voltage is normal, then only blink 1 times.4)Automatic time reset: After the indicator alarm the fault, if there are without manual reset it, when the time reach our reset time setting, indicator will automatically reset. 5) Manual reset: After the indicator alarm the fault, user can press the button " reset/test" in a short time to reset it.6)Automatic Low voltage reset: Through inputting AC30-240V power to the pin 14,15 on the PCB in the display unit, when indicating fault, at same the voltage powered off. when the voltage recover and power on again, then indicator will be reset immediately via low voltage.7) Out side AC110-240V power supply energy for display unit. It use the same as voltage of the "voltage reset" via pin 14,15. - Remote(Scada) reset/test: through short connect the pin 12,13 then indicator will be run the reset/test process, and Led will be blinking.
*Connect the pin 12,13 by short time(1second), then it will be reset indicator. * connect the pin 12,13 by a long time(3seconds), then it will be test indicator.9)Remote indicating: Through connect the pin 16,17 to the external lamp , then it will be indicate fault when any phase alarm fault. 10)Remote to SCADA system by Modbus: connect pin 18 (A), 19 (B).Technology parameter| Voltage grade | AC110V-40.5KV | | Battery life | ≥10 year |
| Frequency | 50HZ/60HZ | Low voltage alarm of battery | ≤2.5V |
Earth fault alarm current
(Settable by DIP switch) | 40/50/60/70/80/100/120/250A
Default :50A | Earth fault sensor copper cable length | 2x1.5,7meter,or customized |
Short Circuit alarm current
(Settable by DIP switch) | 350/400/450/500/550/600/650/700A
Default :500A | Short circuit sensor copper cable length | 2x1.5,7meter,or customized |
| Alarm current accuracy | ±10% | work environment | Temperature | -40ºC~+60ºC |
| Rated frequency withstand voltage | 2KV/1min |
| Relay contact capacity | ≤95W | Humidity | ≤95%RH |
| Reset time | Settable via Modbus | 1-36H,(default:4H) | Install for cable diameter
| Short circuit sensor
(Cable, type ) | Ф10mm~70mm
Normally |
| Load fluctuation and escape pulse time setting, Response time | Settable via Modbus | 20, 30, 40, 50, 60, 70, 80, 100ms.
(default:20ms) |
| Working power | ER34615
battery | lithium battery (LiSOCl2)
3.6V/19000mAh | Earth fault sensor
(Cable, type | Ф10mm~110mm
Normally |
| Working current | Standby state | ≤35μA | Ф10mm~150mm
Customized |
| Working state | ≤1mA |
| Indicator protection level | Display unit | IP 65 |
| Sensor CT | IP 67 |
Address:
Qianshan, Mingzhu Road 3021, Zhuhai, Guangdong, China
Business Type:
Manufacturer/Factory
Business Range:
Electrical & Electronics, Industrial Equipment & Components, Instruments & Meters
Management System Certification:
ISO 9001
Company Introduction:
Zhuhai Snova Technology Co., Ltd
1. Cooperative Partner and pratical application
SNOVA is one of the largest and reputed manufacturers of electrical components for Fault Indicator (Used for switchgear Like AIS, GIS, RMU, SF6, Safelink, Circuit breaker, etc)
2. Our business Range
SNOVA do two kinds of business like OEM/ODM. We have invest the abundant fund to our device and have the professional engineer team which would help our customer to solve the problem.
3. Reasonable Price with good quality
SNOVA would supply the good quality with attractive price products in order that you would win in your market.
4. Our Main Products for MV Indoor/Outdoor switchgear as below:
A. Fault Indicator
B Short Circuit and Earth Fault Indicator
C. Overhead Line Ground Fault Indicator
D. Overhead Line Remote Earth Fault Indicator
E. Smart Cabinet Dehumidifier
F. Temperature and Humidity Controller
If you are interested in our products, please contact with us.
Contact: Andrew Mao Job tittle: General manager
Mobile: 0086-13570657698
And please leave your e-mail or other contact information, we will reply to you in time.
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