Auxiliary output to 120 V a.c. for directional relays
Integral custom timer for testing IDMT relays or circuit breakers
Automatic protection against current or thermal overload
The SCITS100 Secondary Current Injection Test Set has a maximum rating of 100 A/1,8 kVA and a built-in timer unit. The test set is constructed in a rugged metal case with large carrying handles for practical field operations. The SCITS100 will test instantaneous relays, IDMT relays, directional relays, moulded circuit breakers and metering. Current or voltage at each of the three main sets of a.c. terminals is completely variable by use of the main output control. The outputs from these terminals are:
0 to 100 A a.c. or 0 to 24 V a.c.
0 to 30 A a.c. or 0 to 80 V a.c.
0 to 10 A a.c. or 0 to 240 V a.c.
The rms current output, flowing via the common terminal, is measured to a resolution of 10 mA. Also incorporated are a variable 0 to 240 V d.c. output and an independently controlled 0 to 120 V a.c. output to allow directional relays to be tested.
APPLICATIONS
Protective devices such as relays, overload coils and circuit breakers must be checked on installation and at regular intervals while in service to ensure that they are always ready to operate correctly if a fault should occur in the equipment that they are protecting. Routine current injection testing will quickly detect faulty or incorrectly adjusted protection devices. Also, it will possibly prevent serious damage to plant equipment and maybe injury to personnel
