SNV-EFI Earth fault indicator without MOQ
SNV-EFI Earth fault indicator without MOQ
SNV-EFI Earth fault indicator without MOQ

SNV-EFI Earth fault indicator without MOQ

USD $1 - $2 /Piece

Min.Order:1 Piece

Supply Ability:
100000 Piece / Pieces per Month
Payment Terms:
T/T

Zhuhai City Snova Technology Co., LTD

Business license
Business Type: Manufacturer
Zhuhai Guangdong China
Main Products: Earth Fault Indicator ,Cable Fault Indicator ,Overhead Line Ground Fault Indicator ,Short Circuit and Earth Fault Indicator ,Cable Temperature and Faults Sensor ,Industrial Dehumidifier ,Temperature and Humidity Controller ,Fault Passage Indicator ,Remote communication terminal ,Smart grid system

Product Details

SNV-EFI Earth fault indicator

Type: surface mounted

 

Description

 SNV-EFI earth fault 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 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 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

1) Intelligent detection of ground fault and through the corresponding LED on the display unit to indicate fault.

2Display unit designed with button, it is convenient for reset or test.

3The pulse width time of fault current can be set to prevent incorrect fault indication caused by surge current.

4It can reset and detect the remote fault indication device remotely by Scada or press key.

5It can provide switch volume for external devices through remote contact.

6It can choose the reset time after fault happen (when purchase, it need to tell factory to set,default 8hours).

7Remote fault indicating can be made by external lamp.

8Earth fault alarm current,Multi-level can be settable through a DIP inside of the display nit(optional)

9Low battery display and alarm test through press the “Test/reset” key by 3seconds.

10) Battery can be changeable conveniently.

 

Function description

1) 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.

2) 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 Min. working voltage 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 AC110-240V power to the pin 10,11 on the PCB in the display unit, when fault indicating, 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 10,11.

8) Remote(Scada) reset/test: through short connect the pin 3,4, then indicator will be run the reset/test process, and Led will be blinking. *Connect the pin 3,4 by short time(1second), then it will be reset indicator. * connect the pin3,4 by a long time(3seconds), then it will be test indicator.

9)Remote indicating:  Through connect the pin 5,6 to the external lamp , then it will be indicate fault when any phase alarm fault.


Technology paratmater


Voltage grade

AC110V-40.5KV


Battery life

10 year

Frequency

50HZ/60HZ

Low voltage alarm of battery

2.5V

Earth fault alarm current(optional)

10/25/50/75/100/125A/250

Default :50A

Earth fault sensor copper cable length

5meter,or customized

Alarm current accuracy

±10%

Load fluctuation and escape pulse time   setting

Earth fault

20/40ms,60ms,80ms,160ms

(dip switch settable)

Rated frequency withstand voltage

2KV/1min

Relay contact capacity

95W

work environment

Temperature

-40℃~+60℃

Reset time

settable

1-24H,or customized

Humidity

≤95%RH

Working power

ER14505

battery

lithium battery (LiSOCl2)

3.6V/2700mAh

Use for cable diameter

Earth fault sensor

(Cable, type E)

A

Ф60mm~110mm

Normally

Working current

Standby state

10μA

B

Ф80mm~150mm

Customized

Working state

1mA

Indicator protection level

Display unit

IP 65

Sensor CT

IP 67

Define and connect of terminal inside box.



Pin 1-2 : sensor connect

Pin 3-4 : Remote Reset/ test

Pin 5-6: External indicating LED

Pin 7-8: NC relay ,

Pin 7-9: NO relay

Pin 10-11:  power supply and voltage reset (AC110-240V)



Operation description

1) Test:   Before installation, press the display panel’s “ reset/test “ button, 3 second. Then the indicator will go into the self- checking state:

--Battery Level voltage led flash 1 times, (if the battery low voltage, it flash 5 times);

-- Fault indicating led flash, after 10 second, display unit will recover back the normal state. Or shortly press the “ reset/test” button to finish the self-checking state.

 

2) Clean Alarm:  After fault indicating, when we solve the line or device problem, we can reset the indicator to Clean alarm as below three way:

1.  shortly press the “ reset/test” button to clean alarm,

2.  remote (scada) reset through connect Pin 3,4 by scada or key-switch control

3.  wait it automatically reset after reset time setting value.

4.  Voltage reset: when display unit voltage OFF , then voltage ON again.

Note: in order to use this Voltage reset feature, the 110-240Vac voltage must disappear when the fault occurs, i.e. it must be cut off by the MV circuit breaker that breaks the faulty line, otherwise the EFI will not operate voltage reset.




Contact Supplier

Mr. Andrewmao CEO Chat Now
Telephone
86-13570657698-8621065
Mobile
86-13570657698
Fax
86-13570657698-8618303
Address
Xiangzhou district Zhuhai,Guangdong
Whatsapp
8613570657698

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