XHHG521 high-voltage cable outer sheath fault tester
The XHHG521B high-voltage cable outer sheath fault tester is designed based on the principle of MURRAY Bridge. It can be used to locate the breakdown points of various wires and cables and the defect points without breakdown but low insulation resistance.
The equipment uses an electric voltage regulator and an R-type transformer to form a high-voltage constant current source, and the button operation increases and decreases the voltage. The no-load voltage is 6000V, the short-circuit current is 100mA, a high-sensitivity amplifier and a galvanometer are used to indicate balance, and the proportional potentiometer forms a balanced bridge, and the whole is placed at a high potential. The measuring cable is a specially designed double-core high-voltage rubber cable. The four-terminal resistance measurement method avoids the error introduced by the lead resistance. The operating knob on the panel operates the internal high voltage through the insulating rod. The entire panel is at a low potential. The equipment is also equipped with a 12806 display screen, one-key operation, the input cable length can be automatically calculated, and the distance to the fault. The high voltage source and the electric bridge are integrated in a portable protective box. Therefore, the equipment has high voltage, light weight, convenient operation and safe use.
Compared with the wave reflection method, the bridge balance method has no blind spots, and is particularly suitable for judging the breakdown point of short cables and near the end.
| No load voltage |
≤6000V |
| Short circuit current |
≤100mA |
| Positioning accuracy |
±(0.1%·L±1)M |
| Weight |
16 kg |
| Power supply |
AC 220 and 9V battery |
Packaging: Wooden case filled with foam
Shipping: by Air, Sea, Express, etc.
Shipping time: 7-15 days if it's in stock.
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