Description
Overview
Frequency voltage line tester is suitable for overhead lines of small current grounding systems. after the single phase ground fault occurs on the line and stops, the equipment can be used to accurately locate the grounding point. the complete set consists of a transmitter, sensor, receiver and accessories. after fault cable stop work, the transmitter applies an ultra-low frequency and high voltage signal to the line to reproduce the fault. the sensor is connected to the line detection signal with an insulating rod along the line, and wirelessly transmits data to the receiver on the ground and receives the data. the machine displays the measurement results. before the fault point, the current continues to exist, and after the fault point, the current disappears. you can make a rough test and then pinpointing to quickly find fault point.
Features
- Applicable to the distribution network
- Small current grounding system
- Positioning after the line is out of service
- Especially suitable for faulty lines with cable branches
- Apply a high voltage signal
- Reproduce the fault
- The current signal is stable
- Easy to detect
- The ultra-low frequency signal avoids
- Transmitter safety features
- The sensor uses a high sensitivity
- Sensor and receiver wireless communication
- The transmitter can be powered by utility power,
- Generators
- Sensors and receivers
- The transmitter is small
- Light in weight
- The receiver uses a large screen LCD display
Technical Specifications
Output Frequency | 1 Hz |
Accuracy | 0.6 ft (0.2 m) |
Open Circuit Voltage | 0 V to 2800 V |
Short Circuit Current | 0 mA to 35 mA |
Wireless Communication Distance | 98.4 ft (30 m) |
Transmitter Power Supply | AC 220 V |
Output Power | ≥ 1500 W |
Transmitter Power Maximum Power | 900 W |
Sensor Power Supply | 3 sections of 7 alkaline dry batteries |
Receiver Power Supply | 5 section 5 alkaline dry batteries |
Humidity | 5 % RH to 90 % RH |
Altitude | 14763 ft (< 4500 m) |
Temperature | 14 °F to 104 °F (- 10 ° C to 40 ° C) |
Size | 17.9 in x 13.1 in x 12.2 in (455 mm× 335 mm × 310 mm) |