T-305E User Manual Version 3.5 | 6
2.
Product Overview
2.1
Product features
The product has the following characteristics:
1.
Three modes of operation: DC, pulse or periodic.
2.
Different capacitor bank connection to provide different capacitance by a switch
operation. The energy of the surge is directly proportional to the capacitance value.
3.
Interlocking features prevent the equipment from HV operation if the ground is not
securely connected.
4.
A
utomatic discharge facility to remove the charges for the equipment and the cable’s
capacitance after test.
2.2
Main use and scope of application
T-
305E is used together with Kehui’s power cable fault locator T
-906 and pinpointer T-506, to pre-locate
and to pinpoint underground power cable faults
The equipment consists of voltage conversion and rectification to produce high DC voltage for the
test. Interlocking and safety features ensure safe and reliable operation of the equipment during test.
2.3
Product nomenclature
Product model naming method:
T
–
3
05 E
Enhancement
Design Number
High voltage surge generator
Cable Test Equipment
2.4
Environmental conditions
1.
Working environment temperature: -10°C to 40°C
2.
Working environment humidity: 20-90% RH at 25 °C
3.
Storage environment temperature: -10°C to 60°C
4.
Atmospheric pressure: 86 to 016kPa
2.5
Standard Configuration
1.
T-305E instrument
2.
Cable for triggering and signalling
3.
Earthing cables
4.
A user manual
