For finding permanent and intermittent faults on live cables
The T-305-16 high voltage surge generator, is used for locating high impedance and flashing faults on distribution cables.
The T-305-16 high voltage surge generator, is used for locating high impedance and flashing faults on 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 is applicable for different cable fault location techniques, such as the impulse current method (ICM) and the secondary/multiple impulse method (SIM/MIM).
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. These features, together with safety interlocking, ensure safe, reliable and easy-to-use operation.
The T-305-16 also provides repetitive discharges to facilitate pinpointing through the detection of the magnetic field and audio signals related to the fault discharging.
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. Additional Earth/Ground detection circuitry, blocks the operation of the unit if an effective Earth/Ground connection is not in place. These features, together with safety interlocking, ensure safe, reliable and easy-to-use operation.
The T-305E also provides repetitive discharges to facilitate pinpointing through the detection of the magnetic field and audio signals related to the fault discharging.
| Surge Voltage | 0 – 32kV; 0 – 16kV; 0 – 8 kV |
| Surge Steps | 8µF (0 – 16kV), 32µF (0 -8kV), 128µF (0 – 4kV) |
| Surge Energy | 1024J per step |
| DC Test (kV)/mA |
0…32kV / 48mA (1024J) Negative polarity |
| Operating Modes | Single pulse, Cyclic pulse, DC |
| Mode Of Operation | DC / single impulse / multiple impulse |
| Discharge Period | 4 – 15 s. Continuously adjustable |
| Testing Method | ICM, SIM/MIM |
| Dimensions | 500 x 400 x 960mm (1024J) |
| Weight | 84kg |
| Operating Temperature | -10 – +50°C |
| Operating Relative Humidity | 20% – 90% relative humidity |
| Operating Atmospheric Pressure | 86 – 106kPa |
| Ingress Protection | IP21 (IP54 with optional cover) |
| Mains Supply | 220V ± 10% (110V available) |
| Mains Frequency | 50/60Hz ± 20% |
| Maximum Power Consumption | 1200W |