35kv 630kVA~31500kVA Three-Phase Double Winding Non-Excitation Voltage Regulating Power Transformer

• Customization: Available
• Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio, Large Industrial and Civil Buildings
• Phase: Three
• Model NO.: 35kv-50kva Oil-immersed three-phase double-winding
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001
• Usage: Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: High Frequency
• Shape of Core: U
• Brand: Zhi Feng
• No-Load Loss: 130W
• Load Loss: 1200/1140W
• No-Load Current: 1.30%
• Rated Capacity: 50kVA
• Transport Package: Wooden Box
• Specification: 1CBM to 15CBM
• Trademark: Zhifeng Transformer
• Origin: China
• HS Code: 8504210000
• Production Capacity: 100 Pieces/Month

Product Description

   
        This series of products are more advanced in design and have been greatly improved in material , stucture and technology . High and low pressure clamps are made of steel strip or upper beam and side beam , forming a strong frame structure to enhance the damping force of iron core and its resistance to transportation impact.Strong short drcuit  resistance , beautiful appearance , reliable operation , low loss , low noise , reach the advanced level of similar products abroad .

Oil-immersed transformer is based on oil as the main insulation means of transformer, and relies on oil as the cooling medium, such as oil-immersed self-cooling, oil-immersed air cooling, oil-immersed water cooling and forced oil circulation. The main components of the transformer are iron core, winding, fuel tank, oil pillow, breathing apparatus, explosion-proof tube (pressure relief valve), radiator, insulation sleeve, tap changer, gas relay, thermometer, oil purifier and so on.

Oil-immersed power transformers(50kva~1600kva 3-phase duplex winding non-excited tap-changing distribution transformen
 

Rated capacity (kVA)	Voltagecombinationand tap range			Vector group symbol	No-load loss(W)	Load loss (W)	No-load current (%)	Short citcut imp edance (%)
	High pressure (kV)	High pressure tap range (%)	Low pressur (kV)
50	35 38.5	±5 ±2×2.5%	0.4	Dyn11 YynO	130	1200/1140	1.30	6.5
100					185	2010/1910	1.10	6.5
125					215	2370/2260	1.10	6.5
160					225	2820/2680	1.00	6.5
200					270	3320/3160	1.00	6.5
250					320	3950/3760	0.95	6.5
315					385	4750/4530	0.95	6.5
400					465	5740/5470	0.85	6.5
500					545	6910/6580	0.85	6.5
630					665	7860	0.65	6.5
800					785	9400	0.65	6.5
1000					920	11500	0.65	6.5
1250					1120	13900	0.60	6.5
1600					1350	16600	0.60	6.5
2000					1590	19700	0.55	6.5
2500					1890	23200	0.55	6.5

note:Rated capacity 500KVA and belowr transforn  mer,the load loss above the oblique lineinthe table applies to Dymll or Yznll;the load loss belowthe oblique line applies toYyn0.
Nste2    Accordingto requirements,the transformer can supply HV tap change±2×2.5%

Oil-immersed  power  transformers(630kva~31500kva  triple  phase  duplex  winding  non  exciting  regulating  power  transformen)
 

Rated capact (kVA)	Voltage combinationand tap range			Vector group symbol	No-load  loss  (W)	Load loss (W)	No-load current  (%)	Short circuit mpedance(%
	High pressure (kV)	High pressure tap range (%)	Low pressure (kV)
630	35	±5%	3.15 6.3 10.5	Yd11	830	7870	1.10	6.5
800					980	9410	1.00	6.5
1000					1150	11540	1.00	6.5
1250					1410	13940	0.90	6.5
1600					1700	16670	0.80	6.5
2000					2180	18380	0.70	6.5
2500					2560	19670	0.60	6.5
3150	35~38.5	±5%	3.15 6.3 10.5		3040	23090	0.56	7.0
4000					3620	27360	0.56	7.0
5000					4320	31380	0.48	7.0
6300					5250	35060	0.48	7.0
8000	35~38.5	±2×2.5%	3.15 3.3 6.3 6.6 1.05 11	Yd11	7200	38480	0.42	7.5
10000					8700	45320	0.42	7.5
12500					10080	53870	0.40	8.0
16000					12160	65840	0.40	8.0
20000					14400	79520	0.40	8.0
25000					17020	94050	0.32	8.0
31500					20220	112860	0.32	8.0

Note 1:Outline dimensionis designed according to requirements.

Application scenario
    It is commonly used to convert high and low voltages to transmit power over long distances, to regulate voltage, and to isolate and coupling. In addition, oil-immersed transformers can also be used in power plants, substations, and various large-scale industrial and civil facilities.

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Packaging and transportation

About us


    Shandong Zhifeng Transformer Co., Ltd. is located in the North Rainbow Industrial Park, East Second Ring Road, Linqing City, Shandong Province, a famous canal city, with convenient transportation and beautiful environment. The company covers an area of 45,000 square meters, is a collection of 35KV and below oil-immersed transformer, dry transformer, special transformer, grounding transformer, arc suppression coil, reactor, box-type substation, American box transformer, all kinds of box production, sales, research and development in one of the professional power equipment manufacturing enterprises.
Certification certificate


Frequently asked question

Q: Are you a manufacturer, factory or trading company?
A: Yes, we have been engaged in the development, production and operation of transformers for more than 15 years.

Q: What is your warranty?
A: We offer a 12-month warranty.

Q: Production time?
A: 30 to 45 days or depending on order requirements.

Q: What are your payment terms?
A: T/T, L/C or negotiation.

Q: How does your factory conduct quality control?
A: We carry out 100% QC inspection to ensure that every product is qualified. From raw material to final product manufacturing process, we have more than 10 QC inspections.

Q: Do you have any products in stock?
A: Not normally. All our products are manufactured according to your order quantity.


Q: What does a custom transformer need to provide?
A: Technical drawings and technical specification documents are best, or you can tell us some detailed technical specification dates below "Quote and order required information".

Q: Can I have a catalogue and price list for my MOQ trial order?
A: All of our products are made in China or displayed on the official website, you are always welcome to ask us directly for more information.