25 visiting now: 12 China China flag 8 USA USA flag 2 Sweden Sweden flag 2 Vietnam Vietnam flag 1 UK UK flag

Oil Immersed Distribution Transformer - China

price: contact company for price

SCE offers three phases, oil immersed, and naturally cooled (ONAN)

distribution transformers. SCE manufacture these transformers under a

licensing agreement with IEC 60076. The standard manufacturing range is

from 10 kVA to 20000 kVA with a maximum voltage of 35kV.

Core

The core is manufactured from cold-rolled grain oriented (CRGO) silicon steel. The silicon steel is either conventional or laser treated and the choice depends on the desired loss level. The steel sheets are cut into required dimensions on automated machines thereby ensuring reduced air gap, low exciting current and low noise. Each lamination is insulated from each other to ensure a long trouble-free lifetime of the core. Suitably designed core clamping system ensures vibration free operation.

Windings

The windings are made of high-grade electrolytic cooper and are concentrically positioned. Usually copper foil is used for the low voltage windings. Round shaped, enamel insulated wire is used for the high voltage windings. It is exclusively of layered construction and is wound directly onto the low voltage winding, giving a maximum mechanical strength, rigidity and compactness.

Tap changer

The tap changer is fixed on the high voltage winding for voltage regulation.

Off-load tap changer.

It is basically a 3, 5 positions switch, which helps to adjust the voltage at a desired level. The tap changer handle is either on the top cover or sidewall and acts directly on the switching mechanism. As the name indicates, the off-load tap changer must only be operated when the transformer is de-energized.

On-load tap changer.

For higher ratings power transformer, it is basically 7, 9, 11, 17 positions switch which can be operated with energized. Brand of MR, ABB or Huaming are our options for on-load tap changer.

Tank

The tank is of hermetically sealed design and is made from corrugated steel sheets. This type of construction allows a degree of flexibility that is needed to accommodate the expansion and contraction of oil due to varying service conditions. The tank cover is bolted to the body of the tank. The surface is shot blasted first to eliminate all signs of rust, welding spatters, greese, oil and mill scale to achieve a good abrasive surface for the paint to hold for a long period of time. The two coats of primer paint are applied followed by one coat of standard “Cement Gray” (RAL 7033). (Colour Code can be customized)

Bushings

Several types can be provided depending on the requirement and applications. Porcelain bushings are used on the HV side as a norm while on the LV side porcelain or polyamide bushings are provided.

Other designs are also available on request.

Regular Accessories

The regular accessories would include:

Oil conservator(available on request, usually used for ratings above 2000kVA)

Temperature indicator

Pressure release valve

Oil level indicator

Oil drain valve

Oil sample valve

Earthing device

Lifting lug

Cable box (available on request)

Tests

All the manufactured units undergo the following tests in the factory as described in IEC-60076.

Transformer ratio and connection

Measurement of load losses and short circuit impedance.

Measurement of no-load losses.

Separate source withstand voltage test

Induced over-voltage test

On-load tap changer test (only for on-load power transformer)

Transformer oil test

Sealing test of tank

Temperature rise test

Lighting impulse withstand voltage test

Measurement of partial discharge


Company Contact:


  • Phone: 865926295719

  • Address: No.47,Huanzhu Road,Jimei North Industrial Zone, Xiamen, China

  • Email: Email

Published date: June 19, 2013 -

  • Business Description: South China Electric Development Limited, a wholly foreign owned enterprise of South China Group, established in 1992 with a registered capital of HKD 220 million, is engaged in manufacturing of power equipments including transformers, switchgears, compact substations and circuit breakers etc. So far, it has acquired ISO9001, ISO14001 and OHSAS18001 certificates, and was awarded as China Famous Brand, also is the authorized partner of ABB, GE and Siemens.
    Boasting high quality talents and powerful scientific research and development capacity, South China Electric Development Limited continuously launches energy saving, low noise, and environment friendly new power products. In addition to the constant products innovation, the company invests huge amount of fund in technology introducing and improvement. It introduced Hedrich fully automatic vacuum casting equipment from Germany and the up to date equipments of metal processing system from Japan Murata; upgraded the critical equipments including GEORG transformer lamination cutting line, foil winder, micro processor monitoring system for transformer test, partial discharge, noise level tester, coating and painting assembly line. Our transformers has passed the type test by the State Transformer Quality Control and Examination Center (CTQC), the medium voltage switchgear has passed the type test by the State High Voltage Apparatus Quality Supervision and Examination Center, the low voltage complete set of equipment has passed the China Compulsory Certification and the vacuum cast resin transformer has got KEMA certification of Netherland.
    The core competitive advantage of South China Electric Development Limited lies in its constant pursuit of technology innovation, better quality and its human oriented corporate culture. Presently, South China Electric Development Limited is rapidly stepping forward to be collectivized.
    South China Electric Development Limited, targeted for distributing green energy for better world, will constantly enhance itself and persistently innovate.

Related listings



  • Hammond Power Solutions Control Transformers Ph350pg Fk 350va
    Hammond Power Solutions Control Transformers Ph350pg Fk 350va
    Equipment - Electrical - Transformers - A and S Transformer CO.,Ltd. - China - June 13, 2013 - contact company for price

    Hammond Power Solutions Control Transformers PH350PG-FK 350VA Specifications for Hammond Power Solutions PH350PG-FK Item Number: PH350PG-FK Manufacturer: Hammond Power Solutions Item Category: Transformers Subcategory: Control Transformers Series: HP...

  • Hammond Power Solutions Distribution Transformers Q002lekf 2kva
    Hammond Power Solutions Distribution Transformers Q002lekf 2kva
    Equipment - Electrical - Transformers - A and S Transformer CO.,Ltd. - China - June 13, 2013 - contact company for price

    Hammond Power Solutions Distribution Transformers Q002LEKF 2kva Specifications for Hammond Power Solutions Q002LEKF Item Number: Q002LEKF Manufacturer: Hammond Power Solutions Item Category: Transformers Subcategory: Distribution Transformers Series:...

  • Hammond Power Solutions Drive Isolation Transformers De034nj 34kva
    Hammond Power Solutions Drive Isolation Transformers De034nj 34kva
    Equipment - Electrical - Transformers - A and S Transformer CO.,Ltd. - China - June 13, 2013 - contact company for price

    Hammond Power Solutions Drive Isolation Transformers DE034NJ 34kVA Specifications for Hammond Power Solutions DE034NJ Item Number: DE034NJ Manufacturer: Hammond Power Solutions Item Category: Transformers Subcategory: Drive Isolation Transformers Ser...



Safe Trade Tips

  • Ask for business references and check them
  • Use a payment method that offers better protection for all such as Letters of credit and verified professional escrow services. Avoid payments in advance such as money transfers
  • Verify their business via their local Chamber of Commerce
  • Search the internet using their website address, their business name, their phone and fax numbers, and their email addresses to see if you can find any feedback about them.
  • Get to know more about scams to avoid: Internet Crime Complaint Center - International Financial Scams
  • This site is never involved in any transaction, and does not handle payments, shipping, guarantee transactions, provide escrow services, or offer "buyer protection" or "seller certification"