IEC6 1378 JB/T 8636-1997 Oil immersed Rectifier Transformer

• Place of Origin: Jiangsu, China (Mainland)
• Brand Name: TIANWEI WUZHOU
• Model Number: ZS ZH ZQ ZHS
• Usage: Rectifier
• Phase: Three
• Coil Structure: Toroidal
• Coil Number: 3
• Color: grey
• Type: Rectifier
• Voltage: 10kV-220kV
• winding material: copper
• equipment: power transmission equipment
• standard: IEC6 1378 JB/T 8636-1997

Rectifier transformers are combined with a diode or thyristor rectifier. The applications range from very large aluminum electrolysis to various small and medium size operations. The transformers may have a built-in or separate voltage regulation unit for direct output regulation of diode rectifiers , and correspondingly a power factor improvement with a thyristor rectifiers Rectifier Transformer
1) Matching with intermediate frequency induction furnace
2) ISO9001,ISO14001,CE

Rectifier transformers are combined with a diode or thyristor rectifier. The applications range from very large aluminum electrolysis to various small and medium size operations. The transformers may have a built-in or separate voltage regulation unit for direct output regulation of diode rectifiers , and correspondingly a power factor improvement with a thyristor rectifiers

Features:

1)    Low loss

2)    Low noise

3)    High efficiency

4)    Low partial discharge

5)    Strong mechanical strength and short-circuit withstand ability .

6)    Operation reliability

7)    Easy maintenance 

8)    Pretty outline and compact structure

9)    100% guaranteed no leakage

Brief specification

1)    Voltage class: 6~110 KV

2)    Capacity : 630 KVA to 120,000 KVA

3)    Short-circuit impedance : 4.5~21%

Losses: No-load losses is fully comply with IEC standard requirements

Application:

1)    Aluminum smelting

2)    Magnesium smelting

3)    Copper smelting

4)    Zinc smelting

5)    The largest installations are those for aluminum electrolysis with several transformer/rectifier units in parallel operation to achieve the required DC current, in all cases the rectifier can be with diodes or thyristors

FEATURES:

1.The rectifier transformer's load is non-linear impedance, and valve side windings of rectifier transformer would get the currents which contain fundamental and other high-order harmonic superposition. And line side also gets corresponding non-sinusoidal currents connected by rectifier circuit coupling method.

The valve side of rectifier transformer has a variety of special coupling method, such as: dual-back-star with inter phase reactor, three-phase bridge, star-delta parallel, six-phase bridge by inter phase reactor.

3,These high-power rectifier transformer is needed to use star-delta winding phase displacement, phase-shift windings by phase displacement, autotransformer phase displacement, to improve the number of pulse of rectifier equipment.

4,According to the user’s process requirements, the rectifier transformer line side voltage is required (such as 220kV) straight down to a very low valve side voltage (such as 1kV). The valve side voltage of rectifier transformer is required within a wide range of on-load tap from 5% - 105%.

5.Self-saturable reactor can be used to change over and stabilize voltage in order to smooth rectify voltage. And some use silicon control to regulate voltage.

6.Valve side current of high-power rectifier equipment is very large, reaching 100kA and even greater,it’s required the technology of reverse-phase parallel.

7.With the wide application of AC frequency control technology, newly developed three-crack drive rectifier transformer came into being. And the lower voltage valve side of this transformer cracked into three independent branches, which can be made to supply for three different load power, which achieve “ multi functional ” effect, reducing loss and saving area.8,Power and magnetic shielding technology and so on are used.

Main technical parameter

Baoding Tianwei Group (Jiangsu) Wuzhou Transformer Co., LTD. is built up by China South Industries Group，Baoding Tianwei Group (BTW) and Zhangjiagang Wuzhou Transformer Co., LTD. As the Key National New and High-tech Enterprise, It’s specialized in manufacture various kinds of high-voltage and medium-voltage transformers.　　Baoding Tianwei Group (Jiangsu) Wuzhou Transformer Co., LTD. is located in China Zhangjiagang Economic Development Area, is the largest international trading port of Yangtze River except Shanghai Port. Zhangjiagang City has the only national free trade port of Jiangsu Province, with its convenient transportation and highly-developed economy, it’s the most important open city along the Yangtze River.　　With total area of 250,000 square meters and building area of 175,000 square meters, equipped with 550 units domestic leading level of high-power transformer equipments. The company has more than 1000 workers, including 35% above college level. Baoding Tianwei Group (Jiangsu) Wuzhou Transformer Co., LTD. has its own sound management mechanism and quality assurance system, which had passed the ISO9001, ISO14001, OHSAS18001 three systems and has got yearly production capacity of 50,000,000 kVA.　　The company has set up Jiangsu Province Academician Workstation and Jiangsu Provincial Technical Center, based on strong technical R&D development ability of Tianwei Group, has build up good relationship with well-known universities and has established production, learning, research mechanism.    The company had developed “110kV series energy-saving and environment-protective interleave type high-power transformer”, which has got proprietary intellectual property rights independently and has both listed in the Small and Medium Enterprise Creative Fund Project of National Science and Technology Department and has got National/Provincial Technical Torch Program. The company also developed 110kV large capacity furnace transformer, 330kV, 220kV straight down rectifier transformer, 500kV power transformer and etc..　　The company’s main products including 35kV, 110kV, 220kV, 330kV, 500kV power transformer, and special transformers, widely used in power grids, power station, metallurgy, chemicals, mechanical, transportation, aviation, new energy and etc.. The transformer products sell well all over the country and also export to Europe, Americas, Asia, Africa and other countries and areas.     The total investment of Tianwei Wuzhou Transmission Industrial Park is 10 billion yuan, covers an area of 500 acres, have built new transformer workshop building over 95,000 square meters, the main factory building is 36 meters high, 36 meters wide, the maximum lifting capacity is 600 tons, equipped with a large fully enclosed dust-proof assembly workshop, and 3,000 square meters extra high voltage transformer testing center, 1000 square meters 110kV transformer testing center and 1000 square meters 35kV testing center. The income of first project of Tianwei Wuzhou Transmission Industrial Park. After the project put into operation the annual sales income is 40 billion yuan and annual tax would be 4 billion yuan. After the project is go into operation, the quality, performance and test detection technology and other aspects are the leading level up to the same industry in China, and it is the important power transmission industry R & D and production base of CSGC, Tianwei Group in the Yangtze River Delta region.
Tianwei Wuzhou always continue to enhance the Tianwei spirit "self-confident self-reliance, to pursuit the excellence,", combined with modern management concepts, continue to introduce domestic and foreign high-skilled, high-quality, in line with the development of enterprises specialized personnel and advanced production technology, scientific management, sophisticated equipment, and keep innovation and strive to be No. one and create first-class enterprise with first class talent.Tianwei Wuzhou adhere to the spirit of "tough, hard-working, pragmatic, innovative", follow the quality policy "Seiko manufacture low-cost products, widely to meet customer requirements." To provide excellent quality products and service as our own mission, to promote technological advances of transmission field, and to realize the ＆#118alue of “Serving the Country with Industry, Casting Into World-Famous Brand”.