High Voltage Fault Current Indicator , Optical Fiber Led Current Indicator

35KV optican fiber communicable fault locators and Fault circuit indicatos withdata controlling box for cable

one whole system is composed of 1 panel indicator , three short-circuit indicator .one earthed indicator and one data transmission unit, the communication protocal is IEC101 OR IEC104.

Part 1: Panel indicator
1. Summary
 
TYHD-1 panel type fault indicator(be called indicator for short below) is mainly used for indicate short circuit fault and earth fault on the On/Off panel, and used for output wireless signal.

Data transmission Unit is applied in power distribution network, used for data gathering and transmission for load detection ,fault detection and location in cable.
 
2. Working principle
 
The principle is micro-controllers with little power consumption, micro-controllers can automatically identify fault signals from short circuit indicator and earth indicator, They can display the fault signals using LED flashing lights on the spot and output the signals by wireless.

Date Transmission Unit is to make photoelectric translation,process and analyze the fault signal from short-circuit fault indicator and earth fault indicator transmitted through optical fiber.then send the fault signals to master station by GSM or GPRS after analysis and processing to realize fault detection,fault location and load current measurement of power distribution network .

 
3.Installing methods
The appearance of the indicator :

                            FRONT VIEW

                                                                      BACK VIEW
 
Specification of installing:
L1 is connect with A live line
L2 is connect with B live line
L3 is connect with C live line
L4 is connect with Earth line
V1.08 is the version number of software
 
3.1 Fault indicate function
The lights on the L1,L2,L3,and Earth buttons will flash with a 5-minutes interval,if the short circuit fault or earth fault occur.This can be returned to the original condition automatically according to the time delay set by the factory or by pressing button of “Reset/Test” manually.the low battery capacity of the indicator is show on the panel by wireless,The indicator of low battery voltage will flash at the same time(with 4 seconds interval).
 
3.2 Reset/Test function
Restore:press the “Reset/Test” button slightly,then restore after all lights have light.
Self-checking:

3.3The method of changing battery
                          
 
Take off battery as Chart 1 and Chart 2,then exchange.
Take off the battery and replace the new battery follow the picture1 and picture 2
4.Function
4.1 Show short circuit fault and earth fault locally.
4.2 Self-reset ,the interval time of self-reset can be set before delivery from factory (The default is 12 hours).
4.3 Reset or self-test manually.
4.4 Set the addresses of the indicators
5.Performance index
5.1 The distance of fiber communication:
Typical value:5m;Max:10m
5.2 Ambient temperature:-35℃～70℃
5.3 Action times :more than 2000
5.4 Indicator power supply mode :built-in 3.6V/2Ah lithium cell.
5.5 Battery can be changed.
5.6 Life length: continuous working for more than 10 years.
5.7 net weight :less than 0.5kg
5.8 Static power consumption :less than 12uA
Part 2 :The cable indicator of short circuit fault
1.Summary
The TYHD-1cable indicator is suitable for the cable 35kV system (including bellow 35kV system).It can indicate while there is short circuit ,measure electric current,measure temperature(temperature probe attached) and transmit data.It can help line finder find the fault quickly .shorten power-off time,improve the reliability of power supply,be convenient for users to monitor the load current of line on real time.The picture of product is below:
The TYHD-1cable indicator of short circuit fault.
2.working principle
The principle is clip-on line sensor and intelligent controller . The intelligent controller control as the core with little power consumption ,The clip-on sensor can measure the load current on real time,and transmit the current data by fiber timing. When a circuit has a short circuit fault,The cable short circuit indicator recognize it automatically ,then judge intelligently ,then display locally.At the same time transmit the action signal to the panel type indicator installed locally by fiber,which can display locally on the panel .Of course,It can transmit the data to fiber type monitoring terminal by data remote interface,realizing the remote transmission of fault signal and measured data.
3. Installing methods

 
3.1 Clip the indicator on the line as shown in the pictures1.2.3
3.2 Connect the data remote interface of the indicator to fiber transmitting terminal by short-distance fiber.
3.3 Connect pulse port of the indicator to panel type indicator by fiber.(the pulse port not needed to connected without panel indicator)

Note:
Put the fiber to the end,and tighten the nut.
The length of the fiber should be less than 15m,The shorter the distance ,the higher the reliability .
The fiber section is cut flat with a paper cutter, which is beneficial to the transmission of fiber signal
After the test completely cover the rubber cover,in order to avoid abnormal indicator accused by long-term light leakage
4.Function
4.1 Install and disassemble easily,be suitable for Cable lines with a diameter of less than 40 meters.
4.2 The short circuit fault can be found.
4.3The line load current can be detected in real time.
4.4The faults can be indicated locally by flashing.
4.5Epoxy pouring,fully sealed structure,can run outdoors for a long time.
4.6 Tracking the load current automatically without any setting.
4.7Reset automatically,the time can be set before delivery.
4.8 Inhibiting the closed current automatically.
4.9Fiber data communication:

Indicating locally by transmitting the action message from fault indicator to panel indicator(no panel indicator is not available).
Translating remotely by translating load current and action message to cable terminal by fiber.
4.10 Take the power from the circuit current and the built-in backup lithium battery.
5. Performance index
5.1Environment index:
environment temperature:(-40～70)℃ maximum daily temperature difference is 25℃.
relative humidity:5～95%
altitude height:＜2000m
5.2 System specification
cable outer diameter: 10～40mm
system voltage:≤35kV
system frequency:50Hz
maximum over-current protection time delay adaptable :＜10S
5.3 Main technical performance and parameters

working power:taking electricity from line sensing current, one 3.6V/2Ah lithium battery is equipped for supply；
static power consumption:3.6V power supply＜18uA
designed life:10 years
measurement accuracy:0～600A:±3A or3％
optical fiber communication distance:15m
optical fiber data rate:9600bps
long endurance current:650A
auto reset time:transient fault,auto reset by setting time(defaulted 24h)；
permanent fault:Power off duration is over 10 minutes and it is in alarm state, auto reset after power restore within 1 minute. If power off duration is exceeding reset setting time,reset by setting time.
short endurance current:20kA/4S
weight:<0.5kg

Part 3: cable earthed fault indicator

3.1 Summary

TYHD-1 cable earthed fault indicator is applied to cable system below 35KV, with function of zero-sequence current measurement and data transmit function, it indicates fault when earth fault happened in cable, It can help line finder find the fault quickly .shorten power-off time,improve the reliability of power supply,be convenient for users to monitor the zero-sequence load current of line on real time.The picture of product is below:

3.2 working principle

Using specially designed open zero-sequence CT as sensor of measuring zero-sequence current, micro-power consumption intelligent controlling chip is as core to real-time measure zero-sequence current online and timely transmit current data measured through optical data interface. When earth fault happen, indicator will automatically distinguish fault current characteristics to judge earth fault intelligently, then transmit the data through “data remote transmit interface” and “panel indicator interface”connecting to DTU and panel indicator through the plastics optical fiber to realize remote transmitting for fault signal and measured data.

      The parameters can be customzied by clients' requirements. please contact beijing tinanyihongda Sceince & Technology Develoment cooerpation limted for more details of fault indicators and data transmission unit.