?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:

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.

?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:

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.

?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:

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.

?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:

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.

?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:

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.

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.

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:

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.

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.

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:

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.