For finding permanent and intermittent faults on live cables
The T-308 compact surge generator, is used for locating high impedance and flashing faults on low and medium voltage distribution cables.
The T-308 compact surge generator, is used for locating high impedance and flashing faults on low and medium voltage distribution cables. It works in conjunction with a cable fault locator for pre-locating the fault position and then with a pinpointer to find the precise fault location. It uses the impulse current method (ICM) to ensure its full power can be directed to breaking down the fault. The unit is used with the separate T-907L fault locator to provide the distance to the fault. It is also suitable for use with the Kehui pinpointer T-506.
The equipment consists of a capacitor bank, an in-built voltage transformer and a rectifier, switchable to achieve different capacitance and voltage levels. When the unit is switched-off, its automatic and manual discharge facilities removes any residual capacitive charge.
The T-308 also provides repetitive discharges to facilitate pinpointing through the detection of the magnetic field and audio signals related to the fault discharging.
| Mains Supply | 220V ± 10% |
| Mains Frequency | 50/60Hz ± 20% |
| Operating Modes | Single pulse, Cyclic pulse, DC |
| Surge Steps (500J) | 4µF (0 – 16kV) |
| DC Test (kV)/mA | 0-16kV/30mA negative polarity |
| Mode Of Operation | DC / single impulse/multiple impulse |
| Discharge Period | 6 s. fixed |
| Testing Method | ICM |
| Dimensions | 500x305x454mm |
| Weight | 25kg |
| Operating Temperature | -10 – +50°C |
| Operating Relative Humidity | 20% – 90% relative humidity |
| Operating Atmospheric Pressure | 86 – 106kPa |
| Ingress Protection | IP21 (IP54 with cover closed) |