The endurance test apparatus 6 amps to 100 Amps, as per any one rating at a time. The system consists of following three parts:

Control panel
Load bank
Test stand

Functional Specification

Maximum capacity: As per rating
Cos: 0.5 to 0.9 Power factor meter.
Loading: Resistive & inductive loading from 6 A to 100 A cont.
All Digital Metering
Mechanical or Pneumatic Actuator
PLC. control for setting the duration
for 1 sec/ 14 sec, 2 sec / 28 sec
Failure detection Counter meter circuit or weld of contact point.
Load
Air cored inductor with taps and resistor bank, to obtain
All test currents from 6 a to 100 A at 0.875 pf.
Duty cycle 1 sec./14 sec. & 1 sec./29 sec.
(rating based) OR as per requirement.
Test Stand
Test stand will have electro-pneumatic or mechanism for operation fitted