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Features
? ±18kVdc output voltage (PT18-10)
±30kVdc output voltage (PT30-10)
? 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
? Automatic mains voltage selection
? Visual indication of test piece failure
? Zero Volt interlock

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 6000A, voltage
sources, micro-ohmmeters and high voltage test systems up
to 100kV.
The PT18-10 and PT30-10 high voltage dc test sets are
designed to perform tests on installed cable and jointing
systems. The units have a variable output voltage with a
maximum or ±18kVdc (PT18-10) or ±30kVdc (PT30-10).
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 10?F at 18kV or 4?F 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 mk2 units introduce automatic 115/230V mains voltage
selection, allowing easy transition between site voltages.