Power Utility Test & Measure Equipments
Test & Measure ...
 

SECONDARY CURRENT INJECTOR MODEL: SC-10
 
FEATURES :
  • Test outputs available: 0 to100 amperes a.c., 0 to 240 volts a.c., 0 to 240 volts d.c.
  • Auxiliary output 0 to 240 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.
  • 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. Besides checking 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 -2 kVA with built in timer. This will test instantaneous relays, IDMT relays, directional relays, molded circuit breakers and meters. Current or voltage at each of the four main sets of a.c. terminals is continuously variable.

The outputs are:

  • 0 to 100 A a.c. or 0 to 20 V a.c.
  • 0 to 50 A a.c. or 0 to 40 V a.c.
  • 0 to 20 A a.c. or 0 to 100 V a.c.
  • 0 to 5 A a.c. or 0 to 240 V a.c.

Output current flowing thru the common terminal is measured to a resolution of 10 mA. Also a variable output of 0 to 240 V d.c. and an independently controlled output of 0 to 240 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 set up 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 six custom operating modes: 'NO', 'NC', 'CUR' 'RUNBACK NO', 'RUNBACK NC' 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 'RESET' pushbutton and two manual pushbuttons.

 
SPECIFICATIONS:
SUPPLY VOLTAGE 240± 10% Volts, 50 / 60 Hz, a.c. single phase..
CURRENT OUTPUT 0 to100 A at 0 to 20 V a.c.
0 to 50 A at 0 to 40 V a.c.
0 to 20 A at 0 to 100 V a.c.
0 to 5 A at 0 to 240 V a.c.
Each of these outputs has a separate terminal referred to one common terminal.
RATING 100% Current: 5 min ON / 15 min OFF.
75% Current: Continuous.
VOLTAGE OUTPUT 0 to 240 V d.c., 1 A. This is not a floating output.
0 to 240 V a.c., 0.75 A. This output is fully floating and under normal loading is in phase with the current to within 10%.
Each of these outputs has a separate pair of terminals.
METERING 3 ½ Digit 12mm LED.
Current: 20-100 Amp ac.
Voltage: 250 V ac and dc.
Accuracy:± 2% ± 3 digits.
TIMER

4 Digit, 12 mm LED, crystal time base.
Multi-range : a) 9.999 seconds
                    b) 99.99 seconds
                    c) 999.9 seconds
PROTECION
MCB and fuse.
CONSTRUCTION Rugged metal case, powder coated with cover and carrying handles.
 

1) Current Actuated devices without auxiliary contacts.
2) N.C. Contacts.
3) N.O. Contacts                                          
DIMENSIONS W x D x H: 530 x 350 x 370mm approx.
WEIGHT 50 kg.approx.
ACCESSORIES (a) Operating Manual.
(b) Mains cord 3 Core 2 meter long.
(c) Flexible current test lead pair 3 meter long.
(d) Flexible voltage test lead pair 3 meter long.
Due to the company's continuous research program, the information herein may change at anytime without previous notification.