SCR ELEKTRONIKS have developed SECONDARY CURRENT INJECTION TEST TROLLEY for Switchgear items, CT manufacturer and where three phase current application is called for. It is low Voltage, 3 phase Current source with control circuitry, digital read out for test current and trip time measurement. We can select different CT ranges for each phase independently and adjust the current as per the required test Current.
Fully customized design
In built current and voltage meter for accurate measurement and display of current and voltage
Can be servo controlled for accurate voltage output
AC / DC output
Single, two phase and three phase operation possible - can be customized
Input supply: 415 V three phase with MCB protection.
Output: Switches selectable for each phase.
Digital Ammeter: 3-1/2 digit (0 – 1.000 Count) one for each phase.
Output ranges: 15V/1A, 5V/5A, 2V/10A 20V/1A , 10V/5A , 5V /10A 40V /1A ,15V/5A,10V/10A
Variac for Current adjustment is provided one for each phase.
Test time indicator with four ranges. (0-99.999 sec, 999.99sec, 9999.9sec,99999sec)
CT ranges for selecting the test Current. They are 1A, 5A and 10A.
Power ON indicator lamp
Protection: MCB for Input supply.
The test bench can be customized w r t the CT secondary current aimed to replace and the output voltage corresponding to the CT burden. Also the system can be clubbed with a primary injectin test kit.
The secondary injection trolley is user to test the secondary circuit that follows a CT secondary. Typically, the CT measures a high current in the order of 2000 or 5000 A or so, but the secondary of the CT is at 1 or 5 A. The tester is nothing but a current source of 1 / 5 A and relevant measurement can be customized
