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T&R PT18-10 mk3 DC Cable Test Systems
Includes: 2m long supply lead, Spare 7A fuse, 2 x 5m long output leads, DP20 discharge probe, PT18-10 Mk2 Operating manual.
The T&R PT18-10 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 ±18kVdc 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.
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 T&R PT18-10 mk3 unit, allowing higher load capacitances to be safely discharged.
The mk3 units introduce automatic 115/230V mains voltage selection, allowing easy transition between site voltages.
FEATURES
±18kVdc 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 PT18-10 Mk3 Specifications
| Output | |||
|---|---|---|---|
| Unit Type | Voltage | Continuous | 5 Minutes |
| PT18-10 | 0 to ±18 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 | |
| PT18-10 | 0 to 20 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 | |
| PT18-10 | 10 mA. 1 mA. |
±2.5% of full scale. 1 mA ±2.5% of full scale. |
|
| Overload Protection |
|||
| The PT18-10 mk3 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 600 VA max. |
||
| Protection and safety |
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| 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 144 x 362 mm. | ||
| Weight | 17 kg unit only. 25 kg including bag & leads. |
||
| T&R PT18-10 mk2 warranty | 1 year. | ||
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| COMPONENT | DESCRIPTION | PART No. | ||
| 10m Leads | 10m HV leads. | A063-193 | ||
| 10m Earth | 10m earth lead. | A064-112 | ||
| 15m Leads | 15m HV leads. | A063-172 | ||
| 15m Earth | 15m earth lead. | A064-101 | ||
| 20m Leads | 20m HV leads. | A064-156 | ||
| 20m Earth | 20m earth lead. | A064-157 | ||
| DP20 | DP20 discharge probe, carry case including space for leads. | 066 | ||
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Includes: 2m long supply lead, Spare 7A fuse, 2 x 5m long output leads, DP20 discharge probe, PT18-10 Mk2 Operating manual.
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