Huazheng HZ-E-I High Voltage Bridge Cable Fault Locator

Safety instructions for use

Function and application 

 HZ-E-I high-voltage bridge locator has three functions:
1 DC voltage test: the device can output 0 ~ 15kV DC voltage, can be used for cable DC voltage withstand test.
2 Burn through the point of failure: burn through and reduce the high resistance and flashover fault point resistance.
3 Fault pre-locating: Using bridge principle pre-positioning, four-terminal resistance measurement method to avoid the error arising from lead resistance.
HZ-E-I high-voltage bridge locator is particularly suitable for:
1 Installed cable high resistance breakdown point, in particular for the linear HV breakdown point which is difficult to burn to low resistance, such as cable middle connector linear high resistance breakdown.
2 Flashover breakdown point, after breakdown the constant current source can maintain the arc, a stable current through the bridge, the bridge has enough sensitivity.
3 Not yet breakdown but low resistance fault, for example, megger shows cable resistance is low, but under operating voltage the insulation defects can not be breakdown.

Technical Parameters

1 Test voltage: 0 ~ 15kV, negative high pressure, continuously adjustable

2 The maximum current: 30mA

3 The test ratio accuracy: ± (0.2% • L ± 1) meters

4 Output voltage of outer sheath burn through: 0 ~ 15kV, continuously adjustable

5 Output current of outer sheath burn through: 30mA

6 Power source: AC220V ± 10%

7 Anti-interference ability: > 100VAC

8 Weight: ≤ 12kg

9 Dimensions: L478mm × W360mm × H316mm

Packing list