PT30-10 Mk3 +/-30KV – High Voltage DC Cable Test Systems

T&R Test Equipment is a market leader in the field of protection test equipment. The range includes primary and secondary current injection equipment up to 6000A, voltage sources, micro-ohmmeters and high voltage test systems up to 100kV.

 

The PT15-10S Mk2 and PT30-10 Mk3 high voltage DC test sets are designed to perform tests on installed cables and jointing systems. The units have a variable output voltage with a maximum of ±15kVDC (PT15-10S Mk2) or ±30kVDC (PT30-10 Mk3). Both units have a maximum charging capability of 10mA. A zero-volt interlock is fitted that prevents the output being switched on unless the output control is at zero.

 

The units include an automatic load discharge system that discharges the cable under test when the output is switched off or a breakdown occurs. The internal dumping system can discharge a maximum of 2.5kJ on each output, corresponding to 10mF at 15kV or 4mF at 30kV. In the event of a test object failure, the overload circuit will automatically switch off the output voltage and earth the output via the internal discharge circuit. A manual discharge probe is also supplied as standard with both units, allowing higher load capacitances to be safely discharged.

 

The PT30-10 Mk3 units introduce automatic 115/230V mains voltage selection, allowing easy transition between site voltages.

 

The output voltage is metered by two large, line-ar, analogue instruments marked 0-15kV (PT15-10S Mk2) or 0-30kV (PT30-10 Mk3).
The PT15-10S Mk2 and PT30-10 Mk3 are part of a comprehensive range of AC & DC high voltage systems available from T&R Test Equipment. The line-up includes cable test sets from ±15kV to ±30kV DC and pressure test systems up to 100kVAC.

 

The test object current is metered by two further analogue instruments with 0-10 scale marking. The meters read 0-10mA directly, or 0-1mA when the ÷ 10 push button is operated. The HV output from both units use a high quality plug and socket system, allowing for easy cable replacement.