oil type transformers
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Product Range Oil type upto 10 MVA, 33 kV class Reactors for currents upto 5000A, 33Kv, 15Mh Converter Duty – Dual Secondary, 2, 3 or 4 windings Multi Tap transformers Corrugated Tank Transformers Lighting Transformers Optimum Design Each unit is tuned for optimum efficiency while operating between 45% and 65% of full load (which is the average loading) by delicate proportioning of core and winding losses. By using CRGO silicon steel mitred cores and paper enamel covered conductors the units are made compact, resulting in lower losses, better regulation and longer life. Careful design of the core and tank reduces noise level to the minimum. The clamping method adopted helps to keep the optimum properties of the grain-oriented silicon steet, without reducing their mechanical stability. Constructional Features Winding on HT side are provided with sufficient end-turn reinforcement for extra strength. Windings are pre shrunk and impregnated under, vacuum with hot dry Transformer oil before assembly to ensure their proper functioning. Radial as well as axial clearances and cooling ducts provided for the coils add to the safety and uniform cooling of the windings and limbs. Windings are designed to withstand sufficient thermal, dynamic and electrical stresses induced during operation as well as under short circuit conditions. Each tank is pressure tested and the exterior surface coated with primer and 2 coats of weather-proof paint, the shade being dark grey 1110. 6 of IS-5/1980. The interior is given anti-corrosive protection with oil Hesistant varnish. Transformers are supplied with first filling of insulating oil conforming to IS-335/1980.
LVDT And Displacement Indicator
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PRC offers wide range of LVDT to suit various laboratory requirement pertaining to the displacement measurement. These LVDT’s are available in two options such as AC to AC and DC to DC voltage/current. Technical Specification: Application – Linear position measurement Excitation voltage – 2-10 V AC/DC Stroke – 5 mm to 500 mm Hysteresis (mm) – 0.25 Repeatability (mm) – 0.08 Linearity (% FS) – ± 0.05 / ± 0.10 Material of construction – SS / Aluminum Housing – Suitable housing provided Protection – IP-66 Operating temp. Range (°C) – -20°C~+55°C Digital Displacement Indicators Application- Linear measurement Display- 5 / 6 Digit 7 Segment display. Inputs- LVDT Calibration- Auto Calibration Output- 2 Set point Relay output / 1 Relay output Protection- Against Over travel On Screen display- Displacement Function mode- Unit conversion & Peak hold function Keypad- 4 keys to enter parameters.
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Coverter Duty transformers
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We manufacture quality Coverter Duty transformers up to 10 MVA capacity in Oil cooled type having various voltage and current ratings as per the relevant IS standard. Besides all standard fittings as specified in IS standard, optional fittings such as low/high frequency, short circuit and overload protections / cutoffs can be provided as per customer’s requirement. Ranging up to 10 MVA Capacity, 33 KV Class 6/12 Pulse having Vector group DYn11 for 6 pulse & DYn11 with DD0 for 12 pulse or as per requirement Voltage Ratios as per requirement Three Phase, 50 / 60 Hz Suitable for Variable Frequency Drives (VFD), Adjustable requency Drives (AFD), & Variable Speed Drives (VSD) applications Transfomers available with & without taps Naturally cooled (ONAN) or Forced Air Cooled (ONAF) Low losses, Heavy Designs than conventional designed transformers to accomodate harmonics generated in the system Accessories / Fittings as desired by Customer In Accordance with IS, IEC, BS and ANSI Standards, others on request
Off circuit tap changer
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buck boost transformer
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Power Transformers
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Oil cooled Transformer
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