T 22 / 13B Burning Instrument
The 15 kV Burn-Down Unit T 22/13 B is a very powerful, portable, high voltage unit which is primarily used for locating faults in power cables of the low and medium voltage, mains, as well as in control cables.
The high output power and short circuit of the unit make it possible in many cases to convert high impedance and intermittent cable faults into low impedance shunts up to dead short circuits without difficulty or to dry wet cable sections.
The shockproof enclosure of all high voltage parts of the unit and automatic discharging of the test object after shutdown/power failure guarantee maximum protection for the operator and the equipment
Use
The unit acts as a current source for locating faults in power and control cables. It is primarily used for burning down high impedance and intermittent cable faults in low and medium voltage power supply networks.
In addition, it can be used in conjunction with the appropriate connecting devices and a time domain reflectometer (TDR) for pre-location with the Decay/Arc Reflection Method.
Performance features
- Short circuit proof
- Equipped with new circuity to keep Burn-Down power constant
- Maximal Burn-Down current of 25
- Burn-Down voltage constinuously variable from 0 to 15 kV
- Indication of output current and voltage
- Integrated start interlock circuit and discharging device
- Pulse mode for earth leakage