T-305E-16

CABLE FAULT LOCATION

T-305E-16

High Voltage Surge Generator (16kV)

About the T-305E-16

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.

Photos

T-305E-16 control panel
T-305E-16 in use in the field with a cable fault locator

Technical Data

Surge Voltage0 – 32kV; 0 – 16kV; 0 – 8kV
Surge Steps8µF (0 – 16kV), 32µF (0 – 8kV), 128µF (0 – 4kV)
Surge Energy1024J per step
DC Test (kV)/mA0…32kV / 48mA (1024J), negative polarity
Operating ModesSingle pulse, Cyclic pulse, DC
Mode Of OperationDC / single impulse / multiple impulse
Discharge Period4 – 15s, continuously adjustable
Testing MethodICM, SIM/MIM
Dimensions500 x 400 x 960mm (1024J)
Weight84kg
Operating Temperature-10 – +50°C
Operating Relative Humidity20% – 90% relative humidity
Operating Atmospheric Pressure86 – 106kPa
Ingress ProtectionIP21 (IP54 with optional cover)
Mains Supply220V ± 10% (110V available)
Mains Frequency50/60Hz ± 20%
Maximum Power Consumption1200W