Transformer Oil Insulating

Gassing Tendency Apparatus (As per ASTM D 2300, BS 5797:1986, IEC 628:1985.)

Features:

• • This International standard measures the tendency of insulating liquids to evolve or absorb gas when subjected in cells having specific geometrics, electrical stress of sufficient intensity to cause an electric discharge through a gas phase in which a gas oil interface is located.
  • Gassing cell and gas burette assembly made of borosilicate glass with a relative permittivity of 5 ± 0.2 at 80°C.
  • Hollow high-voltage electrode-made of centre less-ground and polished stainless steel with stainless steel capillary tubing as a gas passage. The electrode is supported by Teflon plug.
  • Heating device-Constant temperature transparent oil bath with a circulatory, heating and digital control system.
  • Transparent safety shield-made of clear view acrylic sheet.
  • Power supply : 230 ±10%Volt AC, 1 Phase, 50 Hz.
  • High Voltage Transformer
  • Capacity : 15KV / 10mA AC High voltage unit.
  • Output Voltage : 0-15 KV AC Continuously variables with one end at earth potential.
  • Rating : 300 minutes ON & 30 minutes OFF.
  • Metering : Digital KV meter.
  • Air/moisture filtering system : A silica gel based air filter mechanism is fitted to ensure particulates/moisture free supply to equipment & air flow meter.

Corrosive Sulphur Test Oven (As per DIN 51353)

• Triple walled construction.
• Cross flow air circulation.
• Microprocessor based PID temperature controller with pre-setting digital timer.
• Safety thermostat.
• Temperature upto 200°C, ± 1°C.
• Working size : 45W x 45D x 45H CMS.
• Power supply : 230 ± 10% Volt AC, 1 Phase, 50 Hz.

• As per IS:12177-1987, Method A.
• Oxidative ageing test by open beaker method.
• Microprocessor based PID temperature controller with pre-setting digital timer.
• Rotating shelves driven by high torque geared motor with fixed speed 2 rpm..
• Front door opening with toughened glass viewing window.
• Air flow rate in the oven is maintained by forced air circulation which gives 8-20 changes per hour.
• To accommodate 8 samples of 400ml glass beaker.
• Temperature range : Ambient to 150°C, ± 2°C.
• Power supply : 230 ±10% Volt AC, 1 Phase, 50 Hz.

• Double walled construction with inner cylindrical Dewar flask and outer metal casing with toughened glass window provided on the front side.
• Low wattage fluorescent lamp at the rear illuminates the dewar flask.
• Bakelite cover plate with openings for 2 viscometers.
• A well balance CFC-free single / cascade refrigeration system with eco-friendly refrigerant.
• Motorized stirrer provides adequate liquid transfer, both vertical and horizontally.
• Fully automatic microprocessor based PID controller having feather touch key board with PT-100 sensor.
• Liquid capacity 12 Litres.
• Efficient stirring system.
• Excellent temperature uniformity in the bath 0.1°C.
• Temperature range : Upto -72°C to +60°C.
• Power supply : 230 V, 1 Phase, 50 Hz.

• Cloud & pour point are indicators of the lowest temperature of utility for petroleum products. The sample is periodically examined while it is being cooled in the cloud & pour point apparatus. The highest temperature at which haziness is observed (cloud point) or the lowest temperature at which movement of the oil is observed (pour point) is reported as the test result.
• Three, Four and Five test chambers.
• Individual built in CFC-free single / cascade refrigeration system with eco-friendly refrigerant.
• Individual digital temperature control system.
• Each compartment is designed to accommodate 4 test jars at a time.
• Each compartment is having 4 test jackets.
• Temperature : 0°C, -17°C, -34°C, -51°C and -71°C.
• Power supply : 230 V, 1 Phase, 50 Hz.

• As per IS:335, ASTM D2440 test method.
• 12/24 Place aluminum alloy dry bath.
• Super engineered & designed having required holes (12/24) well machined to accept oxidation tubes.
• Microprocessor based PID temperature controller with pre-setting digital timer.
• Flow meters with needle valve to regulate air flow at 1 LPH, ± 0.1 LPH.
• Temperature range for 50°C to 200°C, ± 0.5°C.
• Power supply : 230 ± 10% Volt AC, 1 Phase, 50 Hz.

Breakdown Voltage Tester

• 0-100 KV oil test set in accordance with IEC 60156 with automatic voltage control.
• Output Voltage : 50 - 0 - 50 KV. i.e. 100 Kv across sample.   (Voltage rise Programmable)
• Capacity : 1 KVA.
• Control  : Motorized.
• Metering : Digital.
• Protection : A fast acting D.C. Relay will sense the primary current of H.T. Transformer and protect the unit.
• Stirring Facility: Stirrer is provided to stir the oil as per requirement of testing methods.
• Test Cell : Corona free acrylic type with electrodes as per fig ‘2’ of IEC 60156 but slightly modified in volume to suit the condition of high voltage.
• Interlocking : Zero start interlocking , H.V. Chamber Interlocking .
• Gauge : “Go” “NOGO” Gauge of 2.51 mm & 2.49 mm. For adjusting gap.
• Auxiliaries :The unit will have main switch, fuse, indicating lamps, push button,
• Input Supply : 230 ± 10%Volt AC, 50 Hz, 1 Phase.