Overview
The Overhead Transmission Line Fault Locator is designed for the location of faults on 6-35kV overhead transmission lines, capable of solving various fault types such as low resistance faults, high resistance faults, arc grounding faults, and phase-to-phase short circuit faults. It provides a complete set of solutions for overhead line fault location, integrating four functions: fault diagnosis, AC positioning, DC positioning, and DC withstand voltage. The innovative AC positioning mode detects characteristic signals directly below the line for low resistance faults without the need to climb poles and hang sensors, featuring simple operation and convenient use. For high resistance faults on lines equipped with intelligent switches (with grounding PTs), the AC positioning booster method is adopted, eliminating the need to disconnect the PT. The transmitter is equipped with a large capacity lithium battery for easy use and portability.
The entire system mainly consists of a transmitter, receiver, AC booster, direct connection sensor, hanging sensor, arc grounding adapter, and accessories.
Features
● Application: Fault finding and location of 6-35kV overhead lines
● Integrates five functions: fault, AC location, DC location, AC withstand voltage, and DC withstand voltage.
● Fault diagnosis
▷ Guides the appropriate positioning method.
▷ Line insulation resistance and capacitance measurement.
● AC Location - Direct Output (Low Transition Resistance Grounding):
▷ Transmitted: High-power special low-frequency AC signal actively injected.
▷ Received signal: Search section by section along the line without having to climb poles to sensors.
▷ Efficient operation: No need to climb poles, greatly improving testing efficiency and reducing work intensity.
● AC Grounding Location - External Step-Up Transformer Output (Circuit with Grounded PT, Intermediate Transition Resistance Grounded):
▷ Transmitted Signal: Large-power special low-frequency AC signal actively injected.
▷ Received Signal: Segment search along the, requiring the installation of sensors on poles.
▷ No need to disconnect the grounded PT of the line.
▷ Innovative comparison ofive current content and current amplitude, solving a wider range of fault locations.
● DC Grounding Location (High/Low Transition Resistance Grounding and Arc Grounding):
▷ Transmitted Signal: Large-power pulse DC signal actively injected.
▷ Received Signal: Segment search along the line, requiring installation of sensors on poles.
▷ All-round positioning mode, especially solving the arc grounding location problem.
● DC and AC Withstand Vol
▷ Acceptance test after fault repair.
● The transmitter has a stop automatic discharge function, ensuring safe operation.
● The transmitter has over protection, overtemperature protection function.
● The transmitter is equipped with a large capacity lithium-ion battery pack, easy to carry.
● The receiver uses fully digital-sensitivity signal processing, with clear and intuitive criteria.
● With data memory function, power loss will not be lost, and positioning is more convenient
Transmitter technical specifications
1. Working mode: fault diagnosis, AC positioning, DC positioning, AC withstand voltage, DC withstand voltage
2. F diagnosis: resistance measurement Range: 600MΩ; Accuracy: ±10%
Capacitance measurement Range: maximum 10uF Accuracy: ±20%
3. AC positioning: output frequency 20Hz different frequency
Output mode Limited power constant current output
Output Direct output: 200mA; External booster output: 33mA
Output voltage Direct output: peak 560V; External booster: peak 3.4kV
4. DC positioning: output frequency Pulsating 1Hz
Output mode Limited power constant current output
Output current 70mA
Output voltage DC8kV
5、Interchangeability voltage: output current Max 33mA
Output voltage External booster output: peak 5kV
Maximum power 100W
6、Direct current withstand voltage: output current Max 70mA
Output voltage DC8kV
power 400W
7、Protection function: overheat protection, overcurrent protection, undervoltage shutdown, automatic discharge
Automatic shutdown after2 hours of no operation.
8、Display mode: 800×480 high brightness color LCD display
9、Power supply: built-in 40WH lithium battery pack
10、Charger power supply: input: AC220V 50~60Hz;
output: 4.6V, 2A
11、Volume: 450mm×240mm×270mm
12、Weight: 13kg
Receiver & Suspension Sensor Technical Specifications
1. Working Mode: AC positioning, DC positioning
2. Data Memory With data storage and record function.
3. DC Wireless Sensor Receiver Communication: 2.4GHz, >100m.
4. Display Mode: Receiver: 800×480 High Brightness Color LCD Display
5. Power Supply: Receiver: 18650 lithium battery, nominal voltage .7V, 6700mAH.
Suspension Sensor: Rechargeable lithium battery 3.7V, 1500mAH.
6. Charger: Input AC100-240V, 50/60Hz; Output 5V/2A;
7. Volume: Receiver: 226mm×140mm×55mm.
Suspension Sensor: 185mm×10 mm ×50mm
8. Weight: Receiver: 0.9kg;
Suspension Sensor: 0.5kg;
9 Operating Conditions: Temperature: -10℃－50℃, Humidity <80% RH, Altitude <1000
We provide you with free consultation services
Engineers provide guidance for installation and commissioning
Technicians can provide on-site maintenance services and receive regular training
Perfect technical consulting service system
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Contact Us
Address: China Optics Valley No. 1, Fenghuangyuan 2nd Road, Donghu High-tech Development Zone, Wuhan City
whmoen@163.com
24-Hour service hotline
15997412136
Unified service hotline
400-017-7185
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