Hi-tech Corporation
Sayajiganj, Vadodara, Gujarat

Oil Tan Delta And Resistivity Test Set

Oil suffers from electrical and mechanical stresses while a transformer is in operation. In addition there are contaminations caused due to chemical interactions with windings and other solid insulations, catalyzed by high operating temperature. As a result the original chemical properties of Transformer Oil changes gradually, rendering it ineffective for its intended purpose after many years. Hence this oil has to be periodically tested to ascertain its basic electrical properties, and make sure it is suitable for further use, or necessary filtration/regeneration has to be done. Testing of DC resistivity and Tan-delta/Dissipation-Factor of such insulating Oils is one of the most critical tests to determine the Oil condition. Power Electronical provides instruments to achieve this objective of accurately measuring the Power-Factor and Volume Resistivity of Insulating liquids.
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Fully Automatic Oil Dissipation Factor (TAN-DELTA) And Resistivity Test Set PE AORDF 1
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Fully Automatic Oil Dissipation Factor (TAN-DELTA) And Resistivity Test Set PE AORDF 1

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Product Details:
Minimum Order Quantity1 Unit
BrandPower Electronical
Model Name/NumberAORDF-1
DisplayBig color Touch-screen 7" TFT LCD with backlit
Weight27kgs (incl accessories), except packing
VoltageSingle Phase 220V AC 50 Hz
Colorgrey
Power Supply- Single Phase 220V AC 50 Hz + 10%
Automatic Resistivity5% of reading over entire range, 10% beyond 1Terra ohm
Accuracy Tan Delta+ 0.1 %
Bridge Sizemax 500VA
Temperatureambient to 110 deg C, resolution 0.1 deg C
Electrode SpacingSTANDARD
Bridge With Carrying Caseyes
Frequency50 Hz
Cables With Carrying CaseYES
Cell ConstantSTANDARD
SensorAVAILABLE
DimensionSTANDARD
Frequency Resolution50 Hz + 10%
Humidity< 90% non-condensing
Interference Current RangeNA
KeyboardNA
Operating RangeFor Dielectric Constant - 60V to 2000V AC & Tan-Delta (in steps of 1V) For DC Resistivity - 100
Power Accuracy+ 10%
Power RangeSingle Phase 220V AC 50 Hz
Ranges Resistivity1 M-ohm to 10 T-ohm (not calibrated above 10Tohm)
Ranges Tan Delta0 to 4
Resolution Tan Delta0.000001 (10 -6 )
Temperature Rangeambient to 110 deg C, resolution 0.1 deg C
PE-AORDF-1 Fully Automatic Oil Resistivity & Tan-delta tester is a 2-pc unit, consisting of Heater unit and Measuring Bridge. The Stainless Steel oil cell is to be mounted inside the Heater unit. Measuring Bridge consists of AC/DC high voltage supply, Tera-ohm meter, and precision electronic bridges to measure & derive the readings for
Resistance
Resistivity
Capacitance
Power Factor
Tan-delta
Watt-loss
Dielectric Constant
Temperature

Oil suffers from electrical and mechanical stresses while a transformer is in operation. In addition there are contaminations caused due to chemical interactions with windings and other solid insulations, catalyzed by high operating temperature. As a result the original chemical properties of Transformer Oil changes gradually, rendering it ineffective for its intended purpose after many years. Hence this oil has to be periodically tested to ascertain its basic electrical properties, and make sure it is suitable for further use, or necessary filtration/regeneration has to be done.

Testing of DC resistivity and Tan-delta/Dissipation-Factor of such insulating Oils is one of the most critical tests to determine the Oil condition. Power Electronical provides instruments to achieve this objective of accurately measuring the Power-Factor and Volume Resistivity of Insulating liquids
Pre-programmed international test methods compliant to
ASTM-D924-04 l ASTM-D1169 l VDE-0380-2 l IEC-60247 l IEC-61620 l BS-5737

FEATURES- Complete automatic test procedure. Once test voltage is selected, it applies excitation to the 3-terminal Oil cell, measures R, C, DF, F, V, and then displays and prints the results on integrated printer
- High Accuracy, Best resolution in its class
- Pure Sine test operation for AC measurements and <0.1% ripple for DC measurements
- Heater interfaced with main unit for temperature set, control and display
- Multiple temperature set values programmable
- Frogrammable cell constant for Resistivity and Dielectric Constant
- SF6 Gas Capacitor integrated inside for std reference
- 7" color TFT display with touch screen with wireless keyboard for user convenience
- Integrated Programmable AC & DC test voltages
- Thermal printer for immediate printing
- Pre-programmed 9 test sequences, and user-programmable 10 test sequences
- USB2.0 interface for PC
- PC software for control and display of test results
- On-site calibration possible for yearly schedule
- Optional Bluetooth/RS485/RF interface with user definable config, for Automated Laboratory setup

Additional Information:
  • Production Capacity: As per customer requirement
  • Delivery Time: 4-6 weeks
  • Packaging Details: ¿¿¿ 200mm(H) ¿¿ 375mm(W) ¿¿ 450mm(D) 27kgs (incl accessories), except packing
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Manual Oil Dissipation Factor (TAN-DELTA) And Resistivity Test Set PE AORDF 2
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Manual Oil Dissipation Factor (TAN-DELTA) And Resistivity Test Set PE AORDF 2

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Product Details:
Weight40 Kgs (Incl Accessories), Expect Packing
Humidity<90% Non-Condensing
Model NumberPEORDF2
Max Operating Temperature150 deg C
Max Test Voltage2500V AC / 1500V DC
Sensing ElementPT-100 Probe
PE-ORDF-2 Oil Resistivity & Dissipation Factor Test set is a combination of 3 instruments, which can be applied to measure Resistance & Tan-delta of the Oil under test. The Volume Resistivity of insulating oil is derived from the measured value of Resistance. It is 3-piece set, consisting of the Heater unit (and Stainless Steel oil cell), Million-mega-ohm meter, and the Dissipation Factor bridge to derive the readings. The Insulation resistance testing instrument is available in max test voltages of 500V DC and 1000V DC, and can be ordered accordingly. Voltages lower than them are available to be set from the front panel via the selector switch
FEATURES- Wide measurement range
- Completely solid state circuitry, hence drift-free operations
- Completely protected against all overloads and short-circuits
- Suitable for testing “Earthed” samples
- High power coil heating, precision point control implemented
- Adjustable temperature from ambient to 150 deg C
- Separate visual push buttons for “Charge” & “Discharge” for rapid and safe testing
- Can implement testing as per ASTM D924, IEC60247, IS6262/6103 test methods

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