he test system is different whether we have to carry out the temperature rise test on one transformer liquid filled ( Oil or Silicone Liquid ) or dry type. In fact in the first case we use the short-circuit method while in the second case we use the back-to-back method. Primary current injection test sets have two main applications. The first of these is the testing of complete reply protection systems comprising the isolated High Voltage Conductor, the Current Transformer, the Protection Relay and the circuit Breaker. Because of the inconvenience of breaking into the feeder circuit on the primary side of the Current Transformer, Primary Current Injection is normally applied at the time of commissioning protection equipment or after major repair. As many of the protection systems requiring testing have a critical performance in relation to time, the primary current injection test sets incorporate a time counter facility. The second role of the primary current injection test is in the testing of the Current Transformer in a protection System. Again, this test is normally applied prior to commissioning equipment or after repair. In addition to these protection system applications, Current Injunction Test Sets are ideal for any application where it is necessary to supply a low resistance load with a controlled and measured heavy current. SPECIFICATIONS Type Single Phase and Three Phase continuous duty. Both A.C & D.C type. Control Panel provided for conducting tests along with Variac assemblies. Single phase controls for Three phase units for un-balance compensation. Capacities From 500 Amps to 40, 000 Amps Secondary Voltage Class From 5 Volts to 60 Volts Primary A.C Voltage Class Either 230 V or 415 V. Phases Two Phase & Single Phase Frequency 50 Hz 60 Hz. Typical Unit Configurations (Other Current Voltage configurations available as per customer requirements) 500 Amps 10 V, 500 Amps 20 V, 630 Amps 10 V, 1000 Amps 10 V, 5000 Amps 30 Volts, 8000 Amps 12 V, 10, 000 Amps 16 V, 20, 000 Amps 10 V, 25, 000 Amps 10 V, 40, 000 Amps 10 V. Insulation Class F up to 1000 Amps , Class A for higher rated units. Winding Material Copper Magnetic Core Prime Grade Virgin C.R.G.O Insulation Graded Thermal Insulation for High current applications. FEATURES Service Designed for long life and trouble free performance Losses Designed for lower losses and greater efficiencies Test Standards Designed for IS 2026 11171 & I.E.C 60076. Value Designed for cost effectiveness and high reliability Installation Designed for installation closer to load. Safety Designed with maximum safety considerations and adequate room for ventilation. Reliability Increased Reliability using premium grade raw materials. Transformer Type Single Phase or Three Phase. Variac (Auto-Variable Transformer) Voltage Variation Single Phase Variac assemblies supplied with the Temperature rise tester for current variation from 0 to Maximum test current. Control Panel Control Panel provided with safety interlocks, Buzzer, Ammeter, Voltmeter and Controls for carrying out the test.
Pune, Maharashtra, India
