Test & Measuring Instruments-> Test Sets For Motor

[1]   Click to Enlarge SURGE COMPARISON TEST SET Surge Comparison test set can be used to detect insulation defects, winding faults in single and multi phases motor windings without changing coil connections, based on the comparison method, with a reference winding. The total voltage impressed on the winding is peak-to-peak, which can be selected to any required level by adjusting the output control and is read directly from the waveform displayed on the CRT screen. Distinct waveforms give indications of various defects such as: Turn to turn short, Coil to coil short in same phase. Phase to phase short, partial & complete. Improper coil connections. Reverse coil connections. Open coil connections. Short to ground partial & complete. Input: 230V + 10%, 50Hz., single phase AC. Output(s) Series SGCNT2 SGCNT2 SGCNT2 SGCNT1 Type 5KJ05J5 10KJ05J5 12KJ28J80 24K11J5 Test voltage 0-5KV 0-10KV 0-12KV 0-24KV Output energy Low power: 0.025J to 0.05J High power: 0.25J to 0.5J Low power: 0.025J to 0.05J High power: 0.25J to 0.5J Low power: 0.28J High power:0.80J 11.5J Display: 5?? CRT oscilloscopic Sweep width: Variable Sets of other test voltage and output energy can also be manufactured at customer?s request. See Enlarge Click to Enlarge CAPACITANCE & TAN-DELTA TEST SET FOR HV EQUIPMENT Capacitance & Tan-Delta Measuring Equipment along with its accessories is suitable for testing motors, Power Transformers, H.V. Bushings, Generators, Power Capacitors, cables etc. at power frequency. Periodic measurement of dissipation factor & capacitance on new solid insulators and those on long service period produces comparative result about the trend of deterioration of insulation resistance before insulation breakdown occurs. Thus, the set is ideal to conduct routine diagnostic tests on solid insulating components, equipment required for High Voltage generation, Transmission and Distribution. The Set is in four units: i. Capacitance & Tan-Delta Measurement Bridge ii. High Voltage AC Power Supply Control Unit iii. High Voltage AC Power Supply Transformer Unit iv. Standard Capacitor See Enlarge Click to Enlarge MILLI VOLT DROP TEST SET This is a portable DC Injection Set suitable to observe millivolt drop across low resistance elements, contacts, switches, D.C. motor commutator segments etc. Input : 230 volts, 50Hz, 1Phase, AC upto 300A. 400/415 V, three phase, 4 wire, 50Hz. , AC above 300A. Output : Continuously variable from zero to maximum rated current required. Series: MVDTXPYYU; X denotes single phase input (1) or three phase input (3); YY denotes DR or OC i.e. either the transformer will be air-cooled or oil cooled type. U denotes no. of units ? either one (1) or two (2). Type: Y1Y1Y1AZZV; Y1Y1Y1 denotes the maximum current capacity in Amp. While, for Y1KAZZV; Y1 denotes the maximum current capacity in kAmp. ZZ denotes the open circuit voltage rating. We manufacture these sets in wide range up to 3KA and of various capacities. Duty Cycle : 5 minutes ON & 10 mins. OFF. Sets of other duty cycle can also be manufactured at extra cost. Units : 1 unit upto 500A. 2 units above 500A upto 3000A. Transformer : Air-cooled upto 1000A. Oil cooled above 1000A upto 3000A. Step down rectifier transformer with full wave rectifier bank consists of 4 nos. silicon diodes along with surge suppressor. Protection against overload & short circuit is provided. ?Zero Start Interlock? protection is also incorporated. Metering: Analog millivoltmeter, voltmeter & shunt operated ammeter. Digital meters can be provided at extra cost. One set of probes to measure millivolt drop between two points of test sample is provided. See Enlarge Click to Enlarge INSULATION RESISTANCE CUM POLARISATION INDEX TEST KIT TYPE: IRPI5KMN This apparatus is perfectly suitable for diagnostic testing i.e. insulation resistance and polarisation index, of a wide variety of heavy duty electrical equipment & system like transformers, high voltage insulators, power cables, motors, electrical installation etc. Input : 240 V + 10%, 50Hz. ( + 3%), single phase AC. Output(s) [a] Test voltages: Selectable in four different ranges i.e. 500V, 1000V, 2500V and 5000V DC. Metering: 41/2 digital panel meter [b] Resistance measurement done in analog meter: Voltage Resistance range 500V 50 GΩ 1000V 100GΩ 2.50 kV 250GΩ 5.00 kV 500GΩ Resistance measurement done in digital meter: 50GΩ for all test voltages. [c] Capacitance measurement: 100 pF to 20.0 micro farad Metering: 31/2 digit module. [d] Time measurement range : 0 - 999.9 sec. See Enlarge Click to Enlarge MOTOR TEST BENCH FOR NO LOAD TEST FOR INDUCTION MOTORS Motor Test Bench is capable of testing 3 phase, 50 c/s, 440 V Induction motors providing the following scope of tests. High Voltage test upto 3 kV rms. Capacity: 500 mA in the H.V. side with tripping at 100 mA, 250 mA & 500 mA. Duty cycle: 5 mins. ON 5 mins. OFF Insulation test at 500 V DC & 1000V DC. Performance tests for induction motors at NO LOAD with application of Rated Input Voltage. i. No load current characteristic. ii. No load losses. iii. Speed of Motor can be checked by external tachometer (not in scope of this contact). The Test Bench can test- Single phase motors upto 30 kW Max. On D.O.L. Start. 3 Phase Motors upto 95 kW at 440 V (Line to Line) on D.O.L. Start. 3 phase Motors upto 110 kW at 440 V (Line to Line) on Start / Delta Start. Input: 3 phase, 50 c/s, 440 AC. Interlocks are provided to make sure that only one test can be carried out at one time. Similarly, only one Motor to be tested at one time. Off-load tap changing arrangements are incorporated in the Test Bench. Metering: Voltmeter with phase selector switch for applied terminal voltage (line to line). Voltmeter to read the applied H.V. & milliammeter to read the tripping current. CT operated Ammeter for Line currents (for all three phases). Wattmeter. Megaohm meter. Protection: Bimetal over-load relays. CT operated overload-tripping circuit incorporating contactors, auxiliary relays etc. Single phase preventer. Sets are also manufactured as per customers? requirement. See Enlarge [1] Go to Top