35kv/1250kVA Three-Phase Epoxy Resin Poured Dry Type Transformer Customizable

• Application: Power, Electricity Power Transmission
• Phase: Three
• Core: Core-type Transformer
• Cooling Method: Dry-type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001
• Model NO.: 35kv/1250kVA Three-phase epoxy resin poured dry ty
• Usage: Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: High Frequency
• Shape of Core: U
• Brand: Zhi Feng
• Attachment: Fan, Housing
• Insulation Class: H Grade
• Shell: IP20/IP23
• Authentication: ISO9001
• Transport Package: Wooden Box
• Specification: 1406x860x1280mm
• Trademark: Zhifeng Transformer
• Origin: China
• HS Code: 8504210000
• Production Capacity: 100 Pieces/Month

Product Description

Company profile
    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.
 

Product introduction

    This series product uses in the 20kV,35kV electrical network power source reducing is directly the 400V power distribution power source or the 10kV electric transmission power source is the user power supply,because has the remarkable merit,uses for more and more many projects.Its main merit indludes:

1.The reduced occupying a land area of and multistage changes the electricity engineering construction,has the remarkable social efficiency.
2.Saves the project investment,enhances the economic efficiency.
3.Simplifies the 10kV power transformer link,causes the movement maintenance cost to reduce obviously.
4.Uses  the  high-pressured undercurrent to replace the low pressure big electric current electric  transmission,reducesthe line loss,reduces the / ine movement  cost.    
5.The 35kV,20kV power source enters directly uses electricity the center,enhances the power supply effectively the reliability.

Structural characteristics

      Because the dry transformer has the advantages of strong short-circuit resistance, small maintenance workload, high operation efficiency, small volume, low noise, it is often used in places with high performance requirements such as fire prevention and explosion protection.
1. Safe, fireproof, pollution-free, can be directly operated in the load center;
2. Using domestic advanced technology, high mechanical strength, strong short-circuit resistance, small partial discharge, good thermal stability, high reliability, long service life;
3. Low loss, low noise, obvious energy-saving effect, maintenance-free;
4. Good heat dissipation performance, strong overload capacity, can improve capacity operation when forced air cooling;
5. Good moisture resistance, adapt to high humidity and other harsh environment operation;
6. Dry transformer can be equipped with perfect temperature detection and protection system. The intelligent signal temperature control system can automatically detect and display the working temperature of the three-phase winding, automatically start and stop the fan, and have alarm, trip and other functions.
7. Small size, light weight, less space, low installation cost.
Iron core
     The high quality cold-rolled grain-oriented silicon steel sheet is adopted, and the core silicon steel sheet is made of 45 degrees full oblique joint, so that the magnetic flux passes along the joint direction of the silicon steel sheet.

Characteristics of the product

    The SC(B)10 series 20kV, 35kV non-excitation voltage regulation dry transformer produced by our company is a low loss product.
In line with the national standards GB6450, GB/T10228 and IEC726 requirements, and has the following characteristics:
1. High performance, low loss, for the type 9 series replacement products.
2. The selection of high-quality silicon steel sheet, while greatly reducing the magnetic flux density, reduce the operation of silicon steel sheet magnetostrictive weight, effectively reduce noise c
3. Optimize the high-voltage coil structure, improve the distribution of interlayer voltage and capacitance, greatly improve the impact ability of the product to withstand atmospheric overvoltage and operating overvoltage, and also improve the electric field distribution, so that the product is further reduced.
4. Temperature control system and air cooling device can be configured to automatically start the fan cooling device when the load is too large, effectively improving the overload capacity of the equipment.

Product parameter
35kV the level SC(B)10 series presses the distribution transformer performance parameter list without the excitation accent
 

Rated Capacity (kVA)	Connection group symbol	Voltage combination(kV)			Non-load Cufrent (%)	Under the different insulation heat-resisting rank load loses(W)			Non-load loss (W)	Short-circuit impedance (%)
		high press (kV)	High pressure tapping range(%)	Low pressur (kV)		B(100ºC)	F(120ºC)	H(145°ºC)
50	YynO Dyn11	35 ~ 38.5	±5 2×2.5	0.4	2.6	1350	1420	1520	450	6.0
100					2.2	1970	2080	2230	630
160					1.6	2650	2810	3010	790
200					1.6	3130	3320	3560	880
250					1.4	3560	3800	4060	990
315					1.4	4250	4510	4820	1170
400					1.2	5090	5410	5770	1370
500					1.2	6240	6650	7070	1620
630					1.0	7260	7690	8260	1860
800					1.0	8550	9120	9730	2160
1000					0.8	9880	10450	11210	2430
1250					0.7	12060	12730	13580	2830
1600					0.7	14630	15480	16530	3240
2000					0.7	17190	18240	19470	3820
2500					0.7	20610	21850	23370	4450

Note:In thetable arrangestheload loses for the parenthesis refers to the temperaturefto see thestipulation of GB1094.11)undervalue.

35kV the level SC(B)10 series adjusts the dehydration pressing type power transformer performance parameter list without the excitation
 

Rated Capacity (kVA)	Connection group symbol	Voltage combination (kV)			Non-load current (%)	Under the different insulation heat- resisting rank load loses(VV)			Non-load loss (W)	Short-circuit impedance (%)
		high pressure (kV)	High pressure tapping Irange%	Low pressure (kV)		B (100ºC)	(120ºC)	H (145ºC)
800	Dyn11 Yd11 YynO	35 ~ 38.5	±5 2×2.5	3.15 6 6.3 10 10.5 11	0.9	8930	9400	10070	4860	6.0
1000					0.9	10260	10920	11680	2250
1250					0.8	12160	12920	13770	2673
1600					0.8	14630	15480	16530	3130
2000					0.7	17190	18240	19570	3690	7.0
2500					0.7	20610	21850	23370	4230

Rated  Capacity (kVA)	Connection group symbol	Voltage combination (kV)			Non-load current (%)	Under the different insulation heat resisting rank load loses(VV)			Non-load loss (W)	Short- circuit impedance (%)
		high pressure (kV)	High pressure tapping range %	Low pressure (kv)		B (100ºC)	F (120ºC)	H (145°ºC)
3150	Dyn11 Yd11 YynO	35 ~ 38.5	±5 2×2.5	3.15 6 6.3 10 10.5 11	0.6	23080	24510	26120	6030	8.0
4000					0.6	27930	29450	31350	7020
5000					0.5	32960	34960	37330	8370
6300					0.5	38470	40850	43600	9900
8000	Dyn11 Yd11 YNd11				0.4	43410	46070	49300	11340	9.0
10000					0.4	52720	55570	59470	12960
12500				6 6.3 10 10.5 11	0.3	60800	64600	69060	15750
16000					0.3	71720	76000	80560	19350
20000					0.3	80750	85500	91480	22950	10.0

Note:Inthe table arranges the load loses for the parenthesis refers to the temperatureto see the stipulation of GB1094,11)undervalue.

Transformer core

1, the core adopts high permeability and high-quality grain orientation cold rolled silicon steel, using 45° five-step overlap method to reduce no-load loss and no-load current.
2, the core design adopts simulation analysis method, accurate and effective calculation of vibration frequency and amplitude.
3, the iron core and the coil, the iron core and the clamp between the flexible connection. Through these measures, the noise level of the transformer is increased by 10-15dB compared to conventional products.

Application scenario

    Dry transformers are widely used in local lighting, high-rise buildings, airports, terminals, CNC machinery and equipment and other places, simply said dry transformers refers to the iron core and winding is not impregnated in insulation oil transformer.
      Cooling methods are divided into natural air cooling (AN) and forced air cooling (AF). When air cooled naturally, the transformer can run continuously for a long time under the rated capacity. When forced air cooling, the transformer output capacity can be increased by 50%. Suitable for intermittent overload operation, or emergency overload operation; Due to the large increase in load loss and impedance voltage during overload, it is in a non-economic operation state, so it should not be kept in continuous overload operation for a long time.

Field installation scenario

Production workshop

Packaging and transportation

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.