Features:
Test outputs available: 0 to 100 amperes AC, 0 to 240 volts AC., 0 to 240 volts DC.
Auxiliary output 0 to 120 volts a.c. for directional relays.
Panel with clear easy to follow legend.
Built in Timer system for testing IDMT relays or circuit breakers.
Overload protected against current and thermal overload.
Digital readouts of current, voltage and time.
Applications: Protective devices such as relays, overload coils and circuit breakers should be checked on installation and at regular intervals when in service. Routine current injection tests will quickly detect faulty or incorrectly adjusted device. The 'UDEY SC-10' is suitable for all these applications including protective relays, including IDMT relays. Beside schecking the correct functioning of the protective device, it is usually necessary to measure the operating time. 'UDEY SC-10' has a built in timer to measure the operating time. Description: The 'UDEY SC-10' secondary current injector is a tester with rating of 100 Amp -1.8 kVA with built intimer. This will test instantaneous relays, IDMTrelays, directional relays, moulded circuit breakersand meters. Current or voltage at each of the four main sets of a.c. terminals is continuously variable. The outputs are: Output current flowing thru the common terminal is measured to a resolution of 10 mA. Also a variable output of 0 to 240 V DC. and an independently controlled output of 0 to 120 V a.c. is available to allow testing of directional relays. Two digital displays are used. A 3½ digit display to show the output current or voltage (by means of meter range selector switch). The other is a four digit display to show readings of the timer. A 'SET/TEST' switch is provided so that the appropriate current can be setup before the test is actually carried out, and to avoid damage to relay coils by disconnecting the test current after the device has operated. The timer has custom operating modes: 'NO', 'NC','CUR' 'Runback' and 'MANUAL'. These enable the function of a protective relay to be fully tested. Separate terminals are provided for connecting to the tripping contacts of the relay. The timer has push button and two manual pushbuttons. Protection: Thermomagnetic contact operates when main output control current exceeds 7.5A. Thermal cutout when loading current transformer temperature exceeds 80 deg C.
