Tianjin Grewin Technology Co.,ltd, who always pay great attention to its business philosophy "Quality and Honesty First". Grewin is specialized in the design and manufacture of wound components such as transformer,current sensors, chokes etc . windely used in communications,electronics,meters,industrial control,medical equipments and other fields.We are also a provider of power meters and instruments locators. 85% of its products exported to America, Europe, and Asia etc. We have passed ISO9001,CE,SGS approval and IEC report and developed good cooperative relationship with valued customers around product quality and value-added service along with the fast efficient solution.Grewin has won a lot of customer's praise.
Name: OGFL-200 Overhead Line Grounding Fault Locator
Transmitter
It is used to inject ultralow frequency pulsating DC signal to the fault line to reappear the grounding fault.The current output by the transmitter and through the fault line to ground at the fault point and back to the receiver.
The transmitter panel as below:
Power socket: contact with 220V power
Protective tube: change protective tube if needed
Power switch: turn on/off the device
HV on: when turn on the device, press this button when output adjustment on the ZERO position to output HV signal.
HV off: Stop HV output
Zero: indicate that the output voltage on the zero position
Protect: when the device become protect mode, this indicator will be bright to show the device is in protect blocking state. Adjust the Output adjust button to Zero position to reset the indicator.
Output adjust: adjust the output current and voltage. When it on the Zero position, to press HV on button to start the transmitter signal output function.
Protect current: indicate the input current value. If current is over default max. 4A,the device will be stopped. Then it is needed to zero the output adjustment button to set protective circuit to readjustment the current.
Output voltage: indicate the value of output voltage
Earth: earth terminal to contact with the earth line to connect the earth mat.
HV out: connect the fault line. According the local state to clip the switchgear wire or connect the faulty line with rod of patch board
Test ground: connect with earth mat.
Sensor
It is used to hang on the fault line and test the current signal, and transmit data to the receiver by the wireless mode.
Panel as below:
Comm. Indicator: flicker when normal communication; Lighting-off then communication disconnect.
Power indicator: light when normal; Flicker when low battery.
Power on/off: long-time press to turn on the device
Receiver
The receiver is used to receive data and display the result. Panel refer below fig.
Certification:
We have abtained VDE,UL,CE,ROHS,ISO9000 Approal and SGS Audit Supplier in China,We guarantee quality is the first
Product description:
Good solution of the pinpointing of single phase to earth fault
Applies to overhead line small current grounding power system.
Use to pinpoint the earth fault when line break down when single phase grounding fault happen
Function introduction:
1. Apply to small current neutral grounding distribution power system.
2. Used to detect the over head line metallic grounding fault, arc grounding fault, resistance grounding fault and so on.
3. Workable for broke down line, apply for branch line
4. Ultralow frequency signal to avoid capacitor influence. Easy to find the high resistive fault
5. Recreate fault by high voltage signal, easy to locate
6. Safe transmitter by black and short-circuit function
7. High sensitive sensor, open design and easy to hang on the line
8. Wireless transmission, safe and reliable
9. Flexible power supply. Transmitter is workable by Utility power and electric generator. Sensor and receiver are by dry battery
10. Light and easy to carry
11. Receiver has large LCD display interface, which can show the current waveform and current value
Specification
1. Location accuracy:0.2m
2. Specification of transmitter:
open-circuit voltage: fundamental wave valid 0~2800kV
short-circuit current: fundamental wave valid 0~35mA(impulse DC, peak value 100mA )
output frequency1Hz
3. Communication distance between receiver and transmitter:≥30m
4. Transmitter power: AC 220V,or electric generator
5. Transmitter power: Max. 900 W
6. Sensor supply power: Three AAA alkaline batteries
7. Receiver supply power: Five AA alkaline batteries
8. Dimension: transmitter 455mmx355mmx310mm
Sensor 180mmx100mmx35mm
Receiver 205mmx200mmx35mm
9. Weight: transmitter 15kg
Sensor 0.45kg
Receiver 0.45kg
10. Working condition :
Temperature -10ºC-40ºC
Humidity 5-90%
Elevation ≤4500m
contact information:
Maggie
Tianjin Grewin Technology Co.,Ltd.
Web:http://grewin-tech.en.made-in-china.com or transformer.en.made-in-china.com
TEL:86-22-84943756
FAX:86-22-85909471
MT: 86-13116189651
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