T&R PT30-10 Mk2 High Voltage DC Cable Test System

The T&R PT30-10 high voltage dc test set is designed to perform tests on installed cable and jointing systems. The units have a variable output voltage with a maximum of +30kVdc, with 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 T&R PT30-10 includes 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 4µF 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 the PT30-10 unit, allowing higher load capacitances to be safely discharged. The mk2 units introduce automatic 115/230V mains voltage selection, allowing easy transition between site voltages. The output voltage is metered by two large, linear, analogue instruments marked 0-30kV. Test object current is metered by two further analogue instruments with 0-10 scale marking. The meter reads 0-10mA directly, or 0- 1mA when the ?10 push button is operated. FEATURES +30kVdc output voltage. 10mA output capability. Both voltage and current metered on HV outputs. Automatic earth system for dumping capacitive loads. HV output plug & socket system. Key operated supply switch to prevent unauthorised operation. Zero-volt interlock. Visual indication of test piece failure. Automatic mains voltage selection. T&R PT30-10 Mk2 Specifications Output Unit Type Voltage Continuous 5 Minutes PT30-10 0 to +30 kV. 5 mA. 10 mA. The above intermittent on times must be followed by an off time of 15 minutes and is based on ambient temperature of 25° C. Metering The positive and negative output voltages on the PT series are metered on the HV output by separate analogue instruments. Unit Range Accuracy PT30-10 0 to 30 kV. +1.5% of full scale. The output current on both of the outputs is metered by a dual range analogue instrument. The 1 mA range is selected by the 10 pushbutton adjacent to the mA meter. Unit Range Accuracy PT30-10 10 mA. 1 mA. +2.5% of full scale. 1 mA +2.5% of full scale. Overload Protection The PT30-10 is protected by an overload trip on the output that operates at 12mA. Supply Requirements 115V/230 V+10% auto-selecting 50/60 Hz 1ph 750 VA max. Protection and safety The output of the unit is protected by an overload trip, and the input and control supplies are protected by fuses. General Storage temperature -20° C to 60° C. Operating temperature 0°C to 45° C. Dimensions 471 x 191 x 362 mm. Weight 25kg unit only. 32kg including bag & leads. T&R PT30-10 mk2 warranty 1 year.

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