Home > Products > VARIABLE VOLTAGE TRANSFORMER > VARIABLE TRANSFORMER
VARIABLE TRANSFORMER
- 10 Unit / Units per Month
- mumbai
- T/T L/C D/P D/A
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Product Details
Place of Origin: | Gujarat, India | Brand Name: | PEC | Model Number: | 1000 kva |
Product Description
VARIABLE TRANSFORMER
POWER is an ISO 9001:2000, DUN BRADSTREET (862376458), IEC, FGI, DIC, EEPC & NSIC registered company. Having five manufacturing plants in all over India . We are engaged in the manufacturing of Industrial Transformers up to 10 MVA (Epoxy Cast Resin Construction, Dry Type, Oil Cooled) low and medium voltage, Industrial Automatic Voltage Stabilizer ranging up to 7000 KVA capacity (U.K. based Brentford type), Variable voltage supply (0 – 33000 Volts), Special Purpose Transformers (step up / step down, auto transformers, Ultra Isolation Transformers), Rectifier equipment's from 0-1500 Volts and up to 25,000 Amps. for Industrial applications.
PRINCIPLE OF OPERATION: The Variable Voltage Supply/ Regulator consist of following basic components depending on the rating of the equipment.
1) Step up Transformer
2) Buck boost transformer
3) Rolling contact type voltage regulator
4) Automatic control gear.
Variable Voltage Supply/ Regulator with constant Input and variable output. It consists of a Step up Transformer, Regulators and Buck Boost transformer. This circuit is normally used to Vary on load voltage when the regulator used in conjunction with buck/boost transformer and step up transformer.
The equipment are available with following control devices:
a) Manual version
b) Motorised version
c) Remote control
In manual version a Hand wheel / T – Handle is provided and desired output voltage can be obtained by rotating the Wheel / Handle manually.
In case of motorized version and servo motor will be provided which can be operated by two sets of push buttons or toggle switch for raising and lowering the output voltage.
In case of remote control arrangement one extra set of push buttons will be provided in your main panel from where the operator would be able to maintain the desired voltage with the help of those push buttons.
|
PRODUCT RANGE |
Power& Distribution Transformers 63 KVA in 11&33 KV voltage class. |
STANDARDS |
Power Transformer are designed and tested as per IS: 2026, BS-171, iec-76 & IEC-726. |
VECTOR GROUP |
Transformer will be connected as per vector group reference Dyn11. Other vector groups can be offered as per specifie requirements. |
TERMINAL ARRANGEMENT |
H. V. – Bare Bushings or cable box, L.V. – Bare Bushings or Cable Box. Disconnecting chambers can also be provided on both HV and LV Cable boxes. |
TEMPERATURE RISE |
Transformers are designed for a maximum temperature rise of 50/55 degree c of oil /winding. Lower temperature rise can be offered on request. |
CORE |
The core is constructed from low loss, cold rolled, grain oriented. Annealed lamination of electrical sheet steel conforming to the latest international standards. Special frame is built in –house for clamping the core to reduce the magnetic noise as well as making the whole structure rigid and robust. |
STANDARD FITTINGS |
1- Monogram plate, Rating and diagram plate, Earthing terminals – 2 nos, Cover lifting hooks Lifting lugs, |
2- Jacking Lugs (500 KVA & above), Prismatic glass oil level indicator Drain-cum bottom filter valve with plug, |
3- Oil filling hole with plug on conservator, Oil conservator with drain plug Air release plug |
4- Silicagel air breather, Bi-directonal flat rollersHV terminals-outdoor bushings |
5- LV additional neutral-1 No. outdoor bushing without socket(for star connected enclosed LV terminals) |
6- Pressed sheet radiators (tank mounted up to 800 KVA and detachable thereafter) Filter valve with plug |
7- Thermometer pocket Oil temperature Indicator (stem type) |
8- Externally operated off circuit tap changing switch ,Pressure relief valve without electrical contacts |
9- Sampling valve (for 2000 KVA & above Trf. only) |
ACCESSORIES (OPTIONAL) |
1-LV and HV cable boxes2-Winding temperature indicator3-Buchholz relay4-Magnetic oil level gauge 5-Marshalling box 6-Disconnecting chamber |
WINDINGS |
Coils area wound with electrolyatic high conductivity paper covered or synthetic enameled copper conductors. Cooling ducts area provided to keep the hot spot temperature as low as possible. Coils area dried in electric ovens. Rigid connection support and coil clamping is provided to ensure high short circuit strength. |
INSULATION |
Precompressed bord PARMALI bord and JAPANEESE insulation paper of best quality is used. |
TAPPING |
Toppings from +5% to -5% in step of 2.5% for HV variation or as per customer’s requirement. |
B. ON LOAD TAP CHANGER Tapping range as per specific requirements can be offered. OLTC for remote/auto/parallel opration can also be offered |
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OIL |
Oil is tested for resistivity, dielectric and acidic characteristic conforming to IEC-296/IS-335 before topping up, oil is filtered thoroughly |
TANKS |
The tanks are made of M.S. Steel plates/sheets with adequate bracing & stiffners. Tanks are pressure tested to withstand any type of inside or outside pressure. All the external surfaces are given a primary coat of zinc chromate, red oxide and two finishing coat of grey paint. The inner surfaces are given a coat of heat and oil resisting paint. |
Contact Us
- POWER ENGINEERS COMPANY
- Contact nameATUL KHOSLA
- Phone91-9714-777713
- Address967/2/2, GIDC, MAKARPURA,
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