Author: Noyafa–POE Tester
High-voltage bridge fault tester manufacturer High-voltage bridge cable fault tester Scope of application Technical indicators High-voltage bridge fault tester manufacturer High-voltage bridge cable fault tester is especially suitable for: 1. The high-resistance penetration point after the cable is laid, especially the linear high-resistance penetration point that is difficult to burn into low-resistance, such as the linear high-resistance penetration point of the intermediate joint of the cable (this is mainly due to the poor manufacturing process of the cable joint). When high voltage is applied, only the creeping arc will leak, no breakdown discharge will occur).
2. The high-voltage bridge balance method has no dead zone and is used to judge the breakdown point of short cables and near-cable ends. 3.
The high-voltage bridge method only requires measuring the uniformity of the cable phase resistance. However, cables with poor traveling wave transmission characteristics, such as PVC low-voltage cables with large dielectric loss; the equipment adopts high-frequency high-voltage switching power supply to form a high-voltage constant current source, with high voltage, stable current, small size and light weight. The operating knob on the panel is at low potential, and the bridge is operated by an insulating rod.
The four-terminal resistance measurement method avoids the error of lead resistance measurement. The device has high voltage, light weight and easy operation. a Compared with the wave reflection method, the bridge balance method has no blind spot, and is especially suitable for judging the breakdown point of the short cable and the proximal end, and the operation is simple.
Technical indicators Model: gdz-08 No-load voltage: 15kV Short-circuit current: 30mA Burn-through power: 250W Positioning ratio accuracy:“(0.2%·L+1) m Weight: 10kg Volume: 48CM×46cm×37cm working power: power frequency 220 V±10% High Voltage Bridge Cable Fault Tester Applicable Scope Technical Specifications High Voltage Bridge Fault Tester Manufacturer Shenzhen Noyafa Electronic Technology Co., Ltd.
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