AC 220V High Voltage Cable Fault Tester With Electromagnetic Waves
Underground
Product Introduction:
Applications: HYCF Cable Fault Locator can test all types power
cable (voltage class 1KV~35KV) , local cable, FM communication
cable, coaxial cable, short circuit, earth, high resistance
leakage, high resistance flashover fault of the metal overhead
lines, and the broken & poor contact of the cable. It also can test
the length of the cable and the speed of the electric wave on the
cable.
Technique index
1 maximum detect distance 30km
2 detect resolution 1m
3 power supply of tester is AC220V 10% 45~65Hz
4 Battery support in the tester
5 sample rate of impulse signal is 100MHz
6 voltage series of cable can be test are low voltage power
cable(0~1kV), high voltage power
cable(1kv~35kv) and communication cable
7 fault type can be applied are disconnection of power cable, low
insulation of power cable( High
voltage impulse generator is required), low resistance and high
resistance connected to earth
and poor contact of connectors
8 Maximum saved records is 100 groups
9 Power consumption of tester is 5VA
10 Voltage divider ratio is 100:1
11 weight is less than 2kg
12 size is 225*165*125mm
13 work temperature 0~50 Celsius degree
Definitions:
1 Character impendence
The character impendence is defined as the impendence of the whole
power cable which is depends on the structure of cable only. The
value of character impendence has no connection with the length of
cable
2 Discontinuity fault of cable
The cable is open at this fault point. It is the end of the cable
3 Short circuit to earth fault
The cable is connected to earth direct at the fault point of cable
4 Low resistance connected to earth fault
The cable is connected to earth in a low resistance at the fault
point
5 High resistance connected to earth fault
The cable has a low insulation which cannot support the continue
running at the rated voltage of cable at the fault point
