PRINCIPLES OF OPERATION

Burndown transformers use a tapped transformer system capable of producing high voltage low current at the one end of the scale and low voltage high current at the other end of the scale. The high voltage is generated through a transformer and rectified to give a maximum output of 14kV DC at around 250mA. The low end of the scale is 50V AC at around 70A. The unit is used in a sequential manner where the current flow is monitored before a decision is made to go to a higher or lower scale.

Adret BU3500
CABLE FAULT CONDITIONING UNIT (BURNDOWN UNIT)

SPECIFICATION

Supply voltage 230V AC
Supply current 15A
Output:   14000V DC 250mA
8500V DC 411mA
3000V AC 1.16A
1500V AC 2.33A
1000V AC 3.5A
230V AC 15.5A
50V AC 70A

Current indication: Primary current
Output selection Manually switched

Weight 45kg

Size 500x500x500mm

ACCESSORIES

Lid : Aluminium with canvas bag for test cables
Test Cables : 5m HT lead with high Current clamps
Earth Lead : 5m yellow/green