Test & Measuring Instruments-> Test Sets For Transformer

[1] 2 [ Next»]   Click to Enlarge OIL TEST SET ?IBL? make Oil Test Set is ideal for testing of Breakdown/withstand test of transformer and circuit breaker oil, in accordance with IS 6792:1992 for oil testing. Input: 230V + 10%, 50Hz., 1 phase AC. Selection chart: Mode of operation Type Maximum output(In kV) with center point of H.V.winding grounded Manually operated OTMN050S OTMN060S OTMN070S OTMN075S OTMN080S OTMN090S OTMN100S OTMN120S 50 60 70 75 80 90 100 120 Motor operated OTMT050S OTMT060S OTMT070S OTMT075S OTMT080S OTMT090S OTMT100S OTMT120S 50 60 70 75 80 90 100 120 Microcontroller/Microprocessor based Fully Automatic OTAU050S OTAU060S OTAU070S OTAU075S OTAU080S OTAU090S OTAU100S OTAU120S 50 60 70 75 80 90 100 120 Capacity: 10mA in the HT side for all sets. Transformer: H.V. Transformer used in the Test set is cast resin type of graded insulation with center point of H.V. winding grounded. Protection: Zero start interlocking & door-interlock is to be provided. Snap acting automatic tripping of H.V. circuit in case of overload or breakdown of oil sample under test. Overvoltage indication (audio & visual) is also incorporated. Metering: Analog meter for manually & motor operated sets. Digital display for automatic sets. Test Vessel: As per IS 6792:1992. A gauge is provided along with the cell to adjust the gap. Features that can be provided at extra cost for manually & motor operated sets: Capacity other than standard setting, Digital Metering, Stirring arrangement, Mushroom electrode, Cylindrical electrode. See Enlarge Click to Enlarge OIL TEST SET ?IBL? make Oil Test Set is ideal for testing of Breakdown/withstand test of transformer and circuit breaker oil, in accordance with IS 6792:1992 for oil testing. Input: 230V + 10%, 50Hz., 1 phase AC. Selection chart: Mode of operation Type Maximum output(In kV) with center point of H.V.winding grounded Manually operated OTMN050S OTMN060S OTMN070S OTMN075S OTMN080S OTMN090S OTMN100S OTMN120S 50 60 70 75 80 90 100 120 Motor operated OTMT050S OTMT060S OTMT070S OTMT075S OTMT080S OTMT090S OTMT100S OTMT120S 50 60 70 75 80 90 100 120 Microcontroller/Microprocessor based Fully Automatic OTAU050S OTAU060S OTAU070S OTAU075S OTAU080S OTAU090S OTAU100S OTAU120S 50 60 70 75 80 90 100 120 Capacity: 10mA in the HT side for all sets. Transformer: H.V. Transformer used in the Test set is cast resin type of graded insulation with center point of H.V. winding grounded. Protection: Zero start interlocking & door-interlock is to be provided. Snap acting automatic tripping of H.V. circuit in case of overload or breakdown of oil sample under test. Overvoltage indication (audio & visual) is also incorporated. Metering: Analog meter for manually & motor operated sets. Digital display for automatic sets. Test Vessel: As per IS 6792:1992. A gauge is provided along with the cell to adjust the gap. Features that can be provided at extra cost for manually & motor operated sets: Capacity other than standard setting, Digital Metering, Stirring arrangement, Mushroom electrode, Cylindrical electrode. See Enlarge Click to Enlarge OIL TEST SET ?IBL? make Oil Test Set is ideal for testing of Breakdown/withstand test of transformer and circuit breaker oil, in accordance with IS 6792:1992 for oil testing. Input: 230V + 10%, 50Hz., 1 phase AC. Selection chart: Mode of operation Type Maximum output(In kV) with center point of H.V.winding grounded Manually operated OTMN050S OTMN060S OTMN070S OTMN075S OTMN080S OTMN090S OTMN100S OTMN120S 50 60 70 75 80 90 100 120 Motor operated OTMT050S OTMT060S OTMT070S OTMT075S OTMT080S OTMT090S OTMT100S OTMT120S 50 60 70 75 80 90 100 120 Microcontroller/Microprocessor based Fully Automatic OTAU050S OTAU060S OTAU070S OTAU075S OTAU080S OTAU090S OTAU100S OTAU120S 50 60 70 75 80 90 100 120 Capacity: 10mA in the HT side for all sets. Transformer: H.V. Transformer used in the Test set is cast resin type of graded insulation with center point of H.V. winding grounded. Protection: Zero start interlocking & door-interlock is to be provided. Snap acting automatic tripping of H.V. circuit in case of overload or breakdown of oil sample under test. Overvoltage indication (audio & visual) is also incorporated. Metering: Analog meter for manually & motor operated sets. Digital display for automatic sets. Test Vessel: As per IS 6792:1992. A gauge is provided along with the cell to adjust the gap. Features that can be provided at extra cost for manually & motor operated sets: Capacity other than standard setting, Digital Metering, Stirring arrangement, Mushroom electrode, Cylindrical electrode. See Enlarge Click to Enlarge OIL TEST SET ?IBL? make Oil Test Set is ideal for testing of Breakdown/withstand test of transformer and circuit breaker oil, in accordance with IS 6792:1992 for oil testing. Input: 230V + 10%, 50Hz., 1 phase AC. Selection chart: Mode of operation Type Maximum output(In kV) with center point of H.V.winding grounded Manually operated OTMN050S OTMN060S OTMN070S OTMN075S OTMN080S OTMN090S OTMN100S OTMN120S 50 60 70 75 80 90 100 120 Motor operated OTMT050S OTMT060S OTMT070S OTMT075S OTMT080S OTMT090S OTMT100S OTMT120S 50 60 70 75 80 90 100 120 Microcontroller/Microprocessor based Fully Automatic OTAU050S OTAU060S OTAU070S OTAU075S OTAU080S OTAU090S OTAU100S OTAU120S 50 60 70 75 80 90 100 120 Capacity: 10mA in the HT side for all sets. Transformer: H.V. Transformer used in the Test set is cast resin type of graded insulation with center point of H.V. winding grounded. Protection: Zero start interlocking & door-interlock is to be provided. Snap acting automatic tripping of H.V. circuit in case of overload or breakdown of oil sample under test. Overvoltage indication (audio & visual) is also incorporated. Metering: Analog meter for manually & motor operated sets. Digital display for automatic sets. Test Vessel: As per IS 6792:1992. A gauge is provided along with the cell to adjust the gap. Features that can be provided at extra cost for manually & motor operated sets: Capacity other than standard setting, Digital Metering, Stirring arrangement, Mushroom electrode, Cylindrical electrode. See Enlarge Click to Enlarge OIL TEST SET ?IBL? make Oil Test Set is ideal for testing of Breakdown/withstand test of transformer and circuit breaker oil, in accordance with IS 6792:1992 for oil testing. Input: 230V + 10%, 50Hz., 1 phase AC. Selection chart: Mode of operation Type Maximum output(In kV) with center point of H.V.winding grounded Manually operated OTMN050S OTMN060S OTMN070S OTMN075S OTMN080S OTMN090S OTMN100S OTMN120S 50 60 70 75 80 90 100 120 Motor operated OTMT050S OTMT060S OTMT070S OTMT075S OTMT080S OTMT090S OTMT100S OTMT120S 50 60 70 75 80 90 100 120 Microcontroller/Microprocessor based Fully Automatic OTAU050S OTAU060S OTAU070S OTAU075S OTAU080S OTAU090S OTAU100S OTAU120S 50 60 70 75 80 90 100 120 Capacity: 10mA in the HT side for all sets. Transformer: H.V. Transformer used in the Test set is cast resin type of graded insulation with center point of H.V. winding grounded. Protection: Zero start interlocking & door-interlock is to be provided. Snap acting automatic tripping of H.V. circuit in case of overload or breakdown of oil sample under test. Overvoltage indication (audio & visual) is also incorporated. Metering: Analog meter for manually & motor operated sets. Digital display for automatic sets. Test Vessel: As per IS 6792:1992. A gauge is provided along with the cell to adjust the gap. Features that can be provided at extra cost for manually & motor operated sets: Capacity other than standard setting, Digital Metering, Stirring arrangement, Mushroom electrode, Cylindrical electrode. See Enlarge Click to Enlarge TRANSFORMER TURNS RATIO METER Transformer Turns Ratio Meter is compact in size and is capable to measure actual turns ratio of different types of transformers like Distribution, Power, CT, PT, Auto-transformers, Control & Measuring transformers etc. FEATURES: Suitable to measure percentage ratio error directly. Polarity indication by phase sensitive null detector. Additional 3 phase switch network for Type TTR1P3, TTR10P3 & TTR20P3. Direct ratio error measurement range + 1% of the range with resolution of 0.05 %. Direct ratio error measurement accuracy + 0.25% of the reading. Null indicator: Center zero microampere meter fed through electronic null detector. Digital meter may be provided at extra cost. Over load / Short circuit & HT/ LT reversal protection. Power supply input: 230 volts ? 10%, single phase, 50 Hz. AC. See Enlarge Click to Enlarge DOUBLE FREQUENCY DOUBLE VOLTAGE TEST SET This test set provides a continuously variable output voltage at double frequency to test the insulation between turns of coils, layer to layer, terminals of windings with either uniform or graded insulation and also between the windings and earth, with graded insulation of both Distribution and Power transformers. An alternating voltage of sine wave form (as much as possible) at double frequency (100 Hz.) and double in amplitude can be applied at one side of the transformer under test while the windings, which are not connected to the source of excitation, are left on open circuit. This higher frequency is considered to avoid excessive excitation current during the testing. Voltage source: To generate a voltage at 100 Hz., one 3-phase squirrel cage induction motor is given a supply through a star-delta switch. This motor drives the slip ring induction motor (generator). A variable voltage is also supplied to the generator thereby producing double frequency, which along with the output voltage of the generator is available across the terminals of the Set. Selection chart: Type Output capacity of generator(slip-ring motor) In HP Output capacity of generator(slip-ring motor) In kW Suitable to test transformer upto dfdv010h 10HP 7.5KW 250KVA dfdv020h 20HP 15 KW 750KVA dfdv025h 25HP 18.75KW 1MVA dfdv030h 30HP 22.5KW 2MVA dfdv040h 40HP 30KW 3MVA dfdv050h 50HP 37.5KW 4MVA dfdv060h 60HP 45KW 5MVA dfdv080h 80HP 60KW 6MVA dfdv100H 100HP 75KW 7.5MVA dfdv150h 150HP 112.5KW 11.2MVA See Enlarge Click to Enlarge AC HIGH VOLTAGE TEST SET IBL" make High voltage testing sets are suitable for Power frequency AC high voltage test on transformers, motors, insulators, cables etc. The sets are capable of giving continuously variable AC HIGH VOLTAGE from zero to maximum rated output voltage. Input: Generally, 230 Volts, 50Hz, single phase AC, upto 10KVA & 400/415V, two phase out of three phases for sets beyond 10KVA. However, we also manufacture AC H.V. sets workable on other input voltage at extra cost. Output: Continuously variable from zero to maximum rated output voltage. Capacity: Spread over a wide range of sets from 2.5KV to 300KV AC having capacities from several VA to hundreds of KVA. Duty cycle: Intermittent i.e., 5 minutes ON, 10 minutes OFF. However, test sets of continuous or other duty cycles can also be manufactured at extra cost. Metering: Analog voltmeter & milliammeter/ammeter. Digital meters may be provided at extra cost. Protection: Tripping mechanism for protecting the H.V. transformer against over loading. The tripping mechanism can be adjusted at 25,50 & 100% of the rated current by a rotary switch. Below 100mA & above 20mA two adjustable tripping ranges are at 50% &100%, while for sets of 20mA capacity or below only 100% is adjustable [If required by the users tripping current can be made adjustable at other values, at extra cost]. Apart from tripping mechanism, Zero start interlocking along with Overvoltage alarm & indication are provided. Mode of operation: Sets are generally, motor operated beyond 20KVA & 50KV. Motorisation facility can be available below the specified value at extra cost. H.V Transformer: H.V.Transformer used for the testing purpose can be oil cooled indoor type or Resin cast dry type as found suitable or particularly required by the customer. The H.V. winding of the high voltage testing transformers is of graded insulation, one end of which is grounded through milliammeter and tripping device while the other end remains in floating condition as H.V. terminal. These testing transformers are specially designed to withstand frequent intermittent spark over or momentary short circuit conditions under which such testing transformers are supposed to operate. Discharge Rod: For device under tests having large capacitance, discharge rod may be provided at an extra cost. While sending enquiry for quotation or order please specify the following: Input voltage and frequency. Maximum output voltage. Capacity. Type of transformer –Oil cooled or Cast Resin Duty Cycle. Mode of operation: Manual/Motor operated. Any other details you find important to be specified. See Enlarge Click to Enlarge AC HIGH VOLTAGE TEST SET IBL" make High voltage testing sets are suitable for Power frequency AC high voltage test on transformers, motors, insulators, cables etc. The sets are capable of giving continuously variable AC HIGH VOLTAGE from zero to maximum rated output voltage. Input: Generally, 230 Volts, 50Hz, single phase AC, upto 10KVA & 400/415V, two phase out of three phases for sets beyond 10KVA. However, we also manufacture AC H.V. sets workable on other input voltage at extra cost. Output: Continuously variable from zero to maximum rated output voltage. Capacity: Spread over a wide range of sets from 2.5KV to 300KV AC having capacities from several VA to hundreds of KVA. Duty cycle: Intermittent i.e., 5 minutes ON, 10 minutes OFF. However, test sets of continuous or other duty cycles can also be manufactured at extra cost. Metering: Analog voltmeter & milliammeter/ammeter. Digital meters may be provided at extra cost. Protection: Tripping mechanism for protecting the H.V. transformer against over loading. The tripping mechanism can be adjusted at 25,50 & 100% of the rated current by a rotary switch. Below 100mA & above 20mA two adjustable tripping ranges are at 50% &100%, while for sets of 20mA capacity or below only 100% is adjustable [If required by the users tripping current can be made adjustable at other values, at extra cost]. Apart from tripping mechanism, Zero start interlocking along with Overvoltage alarm & indication are provided. Mode of operation: Sets are generally, motor operated beyond 20KVA & 50KV. Motorisation facility can be available below the specified value at extra cost. H.V Transformer: H.V.Transformer used for the testing purpose can be oil cooled indoor type or Resin cast dry type as found suitable or particularly required by the customer. The H.V. winding of the high voltage testing transformers is of graded insulation, one end of which is grounded through milliammeter and tripping device while the other end remains in floating condition as H.V. terminal. These testing transformers are specially designed to withstand frequent intermittent spark over or momentary short circuit conditions under which such testing transformers are supposed to operate. Discharge Rod: For device under tests having large capacitance, discharge rod may be provided at an extra cost. While sending enquiry for quotation or order please specify the following: Input voltage and frequency. Maximum output voltage. Capacity. Type of transformer ?Oil cooled or Cast Resin Duty Cycle. Mode of operation: Manual/Motor operated. Any other details you find important to be specified. See Enlarge Click to Enlarge TRANSFORMER WINDING RESISTANCE METER This Test set is suitable to measure winding resistance of transformers, single or 3-phase, star or delta connected upto several MVA.Two independent displays read the resistance of both primary & secondary windings simultaneously. However, primary or secondary winding can also be measured separately. DC Power source allows the selected current to flow through the winding /windings and the voltage developed across the winding are sent to instrumentation amplifiers, thereby displaying directly the ohmic value. Technical Features: Resistance Range Resistance meter reading display Resolution Test Current TypeUONT005A Test Current TypeUONT010A 2mW 19.99x0.1 1mW 5A 10A 20mW 19.99x1 10mW 5A 10A 20mW 199.9x0.1 10mW 500mA 1A 200mW 199.9x1 100mW 500mA 1A 0.200W 1999x0.1 100mW 50mA 100mA 2W 1999x1 1mW 50mA 100mA 2W 19.99x0.1 1mW 5mA 10mA 20W 19.99x1 10mW 5mA 10mA 20W 199.9x0.1 10mW 0.5mA 1mA 200W 199.9x1 100mW 0.5mA 1mA 200W 1999x0.1 100mW 0.05mA 0.1mA 2KW 1999x1 1W 0.05mA 0.1mA Input Power Supply: 230V +10%, single phase, 50Hz. AC. Accuracy: +1% of selected resistance range. Display: 2 nos., 31/2 digit LED module for resistance measurement. Protection: Protection against current lead disconnection while in use, Induction Kickback suppression, Snap acting overload protection. See Enlarge Click to Enlarge TAN-DELTA & RESISTIVITY TEST FOR INSULATING OIL Type: tdrnt02 TDRNT02 measures dielectric parameters like D.C. resistivity, dielectric constant and loss factor of the insulating oil of transformers, circuit breakers etc. Loss angle & dielectric constant MODE: This mode can measure dielectric constant & dissipation factor (tanδ). Measuring Range : Dielectric constant 1 to 10 Dissipation factor 0.01% to 100% Accuracy : Dielectric Constant + 2% of reading + .001 of FSD Dissipation factor + 3% of reading + .0001 tanδ Test Voltage for loss factor : 0 to 2000 V AC, 50 Hz. Metering : Digital Resistivity mode: his mode is provided with 500 V DC power supply with accuracy of + 5% to measure the resistivity of the sample under test. Range : 109 to 1016 ohm-cm in 7 ranges. Test Voltage : 500 V DC. Accuracy : + 10% of reading + 2% of corresponding range FSD Metering : Analog Three Terminal oil CELL: The cell is fabricated out of stainless steel and Teflon is the insulating material used for isolation of the three electrodes i.e. H.T. Electrode, Guard Electrode and Central Electrode. Heating CHAMBER: This chamber uniformly heats the test cell and sample under test upto desired temperature to a maximum limit of 1200 C. Temp. Range : From 200C (minimum) or ambient to 1200 C. Indication : Digital. Accuracy of Temperature control : + 20C Power Supply : 240V + 10%, 50 Hz, Single Phase AC. 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 PARTIAL DISCHARGE test set type: pdnt02 This Test Kit is used for non-destructive means of assessing the quality of high voltage transformers, motors, cables etc., which are used in generation & distribution of electric power. The basic system consists of- Discharge measuring module Input : 230volts, 50Hz., single phase AC. Measuring Range: 0 to 5,50,500,5000pC in different switchable ranges. Discharge pulses can be detected and measurement can be done in analog scale as well as in PC. MATCHED MEASURING IMPEDANCE In series with standard capacitor this forms a voltage divider and decouples the high frequency signals to feed the discharge measuring module. The set is electrostatically shielded. Standard Capacitor: 100pf or 1000 pf. C.R.O. suitable for the above Calibrating Pulsar OPTIONAL AT EXTRA COST: 40 kV AC high Voltage measuring system Auxiliary Supply Voltage: 230 Volts, 50Hz, single phase, AC. Range: 0 - 40 kV AC Metering: 31/2 digital panel meter. See Enlarge Click to Enlarge MICRO OHM-METER Type: UONT100A This Test Set is capable to measure low resistance like switch contacts, breaker contacts, busbar splices, joints, fuses, low inductive windings etc. by circulating high value of D.C. through the contact/junction and measuring D.C voltage drop (4 terminal method) which, sent to instrument amplifiers , thereby being displayed on resistance meter. Technical Features: Resistance Range Resistance meter reading display Resolution Test Current 200mW 199.9 0.1mW 100A 2mW 1.999 1mW 50A 20mW 19.99 10mW 20A 200mW 199.9 100mW 10A,5A Input: 230 Volts + 10%, 50 Hz., single phase AC. Accuracy: + 1% of reading. Metering: 2-nos., 31/2 digit LED module for resistance measurement & current measurement. Protection against overload & short-circuit. See Enlarge Click to Enlarge NO LOAD & LOAD TEST BENCH These are the test benches incorporating control & measurement circuitry necessary for testing single phase as well as three phase transformers of several VA to MVA rating & voltage class of 11KV/433V,as well 33KV/11 KV, after manufacturing, repairing, reconditioning. Following tests can be done by these Test Sets. No load Test from L.T. side Input voltage to L.T. side. No load current. No load or excitation loss. Load Test Impedance voltage. Rated L.T. & H.T. current. Conductor loss Temperature rise Test Injection only at equivalent short circuit current (Temperature/Time measurement scheme is available at extra cost). Polarity Phase sequence Ratio error Input: 415 volts, 3 phase 4 wire, 50Hz, AC. Range of equipment: Type Input Output Range of transformers under test LDNLD1P1 230V, 50Hz. , single phase AC. 0-240V AC at 50A 0-480V AC at 25A 0-960V AC at 12.5A Distribution transformers from 3KVA to 250KVA i.e. 20KV primary & 480V secondary. LDNLD3P1 415V, 3phase, 4 wire, 50Hz. AC. 0 to 500V, 3 phase continuously variable AC. Capacity: 28A. Distribution & Power transformers upto 500KVA. LDNLD3P2 400V, 3 phase, 4 wire, 50Hz. AC. 3 phase output: 0-2.75KV AC 0-5.5KV AC 0-11KV AC Capacity: 200KVA. 1phase output: 0-500V AC; Capacity: 2.5KVA. 3 phase transformers- Upto 33KV (Ph-Ph) primary voltage & Upto 11KV secondary voltage. Capacity: 3MVA Max. 1 phase transformers- Upto 11KV primary voltage & 250V secondary voltage. Capacity: 50KVA Max. Protection: Foot switch interlock. Zero start interlock. Over load and short circuit. A remote interlock connector to interlock the test cage area. Metering: High accuracy precision Digital measurement instrumentation (voltmeter, ammeter & wattmeter) scheme with metering accuracy of + 1% is incorporated. Suitable transducers are used for range transformations. Auxiliary step up transformer: Usually, these sets are made for 11KV/433-voltage class. However, additional step up transformers are available at extra cost to suit the test sets for 33KV/11KV class. Apart from the existing Types, sets as per requirement of customer may also be manufactured. See Enlarge [1] 2 [ Next»] Go to Top