20kv 2000kVA Electrical Equipment 3 Phase Oil-Immersed Step up Power Distribution Transformer Factory Price (30-2500kVA)

• Application: Power, Instrument
• Phase: Three
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001-2000, ISO9001, CCC
• Model NO.: S11 20kv 2000kVA
• Usage: Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Ring
• Brand: Qinghao
• Standard: IEC60076 / GB1094
• Connection Group: Dyn11 or Yyn0
• Product Name: Oil Immersed Distribution Transformer
• Warranty: 24 Months
• Frequency: 50/60Hz
• Logo: Qinghao or Customized
• Tapping Method: on Load / off Load Tapping Changer
• Material: Copper / Aluminium
• Transformer Type: Oil Filled Transformer
• Transport Package: Wooden Case or Pallet
• Specification: As per data sheet
• Trademark: Qinghaobiandian
• Origin: China
• HS Code: 8504231100
• Production Capacity: 10000PCS/Year

Product Description

Product Description

Qinghao oil distribution transformer includes hermetically sealed, amorphous alloy, conservator type and on-load tap changer type, which is usually pole mounted or installed in distribution station for daily lighting and factory power whose LV output up to 0.4kV. Our distribution transformer rating is up to 2500kVA, and primary voltage up to 35kV. The corrugated tanks as thermal expansion and contraction component enable the transformer oil completely isolated with the atmosphere. Oil distribution transformer with primary voltage range of 6,10,10.5,11,20,22,24,33, 35,38.5kV can be manufactured according to customer requirements.

Main Characteristics:
1. Designed by patented technology and software with premium performance.
2. Core is made of high quality cold-rolled grain-oriented silicon steel sheet which produced in step-lap technology.
3. Winding is using high strength enameled wire or paper-insulated wire or copper belt, which offers uniform distribution of ampere-turns, reasonable insulation structure with high ability to withstand short-circuit.
4. Oil tank is corrugated type with high corrosion resistance. Tank surface pre-treatment liquid and coating powder adopts international top brands. The tank is degreasing, pickling, phosphorated, electrophoresis by automatic production lines, then power spray coating and heat-solidify.
5. The active part applies core free-hanging structure. The gasket is made of high-quality acrylate rubber which can inhibit ageing caused by sun and heat.

Advantages:
1. Low loss, low noise, low partial discharge, high reliability.
2. Safety with elegant appearance.
3. Convenient installation and simple maintenance.
4. Compact with small occupied area.

Applications
1. Building Infrastructure and Industrial: Airports, hospitals, factories, shopping malls, hotels, commercial and residential towers.
2. Utility: Generation, transmission, distribution substations, water and waste water treatment plants.
3. Oil and Gas: Oil and gas plants, petrochemical plants and refineries.

Service environment:
1. Ambient temperature: Maximum +40ºC, Minimum -40ºC
2. Altitude: less than 1000 meters.
3. Seismic level: less than 3m/s2 at horizontal direction and less than 1.5m/s2 at vertical direction.
4. Installation environment: No obvious and heavy pollution, no explosive and corrosive gas and dust, with good air ventilation and no severe vibration and shock.
(Note: If the application environment is different from the above standard conditions, please contact for customized designs.)

Product Parameters

 
High efficiency, low loss, low noise, small size, light weight, compact structure and easy to use. 

The rated voltage and rated power can be customized as customers' requirements.   

High Voltage:20(15,20,22)KV                                  Connection Symbol:D,yn11 or Y,yn0                           Rated Frequency:50Hz/60Hz               Low Voltage:0.4(0.415,0.433)KV                             Tapping Range of HV:±2x2.5%                                   Insulation Level:LI125 AC55/AC5
Rated power (KVA)	Short-Circuit Impedance(%)	S18 (W)			S13 (W)			S11 (W)			No-Load Current (%)	Sound pressure dB(A)	Weight (kg)	Overall Dimension(mm)
		No-Load Loss	On-Load Loss75ºC		No-Load Loss	On-Load Loss75ºC		No-Load Loss	On-Load Loss75ºC					L	W	H
			Dyn11	Yyn0		Dyn11	Yyn0		Dyn11	Yyn0
30	5.5	70	550	530	80	690	660	100	690	660	2.1	52	500	700	650	900
50		95	810	770	104	1010	960	130	1010	960	2.0	52	600	730	690	950
63		110	960	920	120	1200	1150	150	1200	1150	1.9	52	650	750	700	980
80		130	1155	1100	144	1440	1370	180	1440	1370	1.8	54	700	770	720	1000
100		145	1385	1320	160	1730	1650	200	1730	1650	1.6	54	750	810	760	1050
125		170	1660	1585	192	2080	1980	240	2080	1980	1.5	56	820	860	780	1100
160		210	2035	1940	232	2540	2420	290	2540	2420	1.4	56	860	910	810	1140
200		245	2400	2290	272	3000	2860	340	3000	2860	1.3	58	910	1220	820	1150
250		290	2820	2680	320	3520	3350	400	3520	3350	1.2	58	950	1270	860	1170
315		345	3370	3210	384	4210	4010	480	4210	4010	1.1	60	1280	1300	900	1200
400		410	3975	3785	456	4970	4730	570	4970	4730	1.0	60	1350	1490	990	1240
500		490	4755	4530	544	5940	5660	680	5940	5660	1.0	62	1560	1570	1040	1250
630	6.0	580	5460		648	6820		810	6820		0.9	62	1840	1600	1090	1260
800		705	6600		784	8250		980	8250		0.8	64	2180	1710	1200	1320
1000		825	9060		920	11330		1150	11330		0.7	64	2540	1820	1270	1430
1250		990	10560		1100	13200		1380	13200		0.7	67	3120	1880	1290	1630
1600		1195	12760		1330	15950		1660	15950		0.6	67	3790	1950	1310	1650
2000		1405	15310		1560	19140		1950	19140		0.6	67	4050	2050	1340	1900
2500		1685	17780		1870	22220		2340	22220		0.5	69	5500	2200	1450	2000
Note: The above parameters are only for designing and selecting  reference, and the final parameters are subject to the actual product.

Detailed Photos

 

Packaging & Shipping

Company Profile

Qinghao Electric Co., Ltd. (Hereinafter referred to as Qinghao Electric) is a reliable and specialized power transmission and distribution equipment manufacturer located in Wenzhou City, Zhejiang Province. We are focusing on transformer, substation, switchgear and other power related products' R&D and manufacture from 2010. Our products mainly include oil immersed transformer, dry-type transformer, amorphous alloy transformer, box type substation, pre-installed substation, high and low voltage switchgear.

With more than 20years develop and production efforts, our products are sold to many countries all over the world. Now our products' technical performance has reached the advanced level in power industry, and our company has become a leading professional power distribution manufacturer not only in China but also in the world. With the concept of "world-class transformers, smart solutions", Qinghao Electric is devoting to provide high-quality power for customers.

Let us cooperate with a brighter future!

FAQ

Q: Are you a Manufacturer, factory or Trading company?   
A: Yes, we are engaging over 20years in the research and development, production and operation of distribution equipment (transformer, switchgear, substation, etc.).

Q: What's your warranty terms?
A: We offer 24 months warranty time.

Q: How long is the production time?
A: 25 to 45 days or depending on order requirements.

Q: What's your payment terms?
A: T/T, L/C or negotiation.

Q: How do you conduct quality control in your factory?
A: Qinghao transformers are manufactured in accordance with international standards and customer requirements with IEC, SGS, Intertek, CCC, CE and other international certifications. All transformers are 100% conducting routine test, type test and special test in accordance with IEC Standards and customer requests at the end of the manufacturing process to ensure every product is qualified. 

Q: Do you have the products in stock?
A: Normally no, but we have raw material stock to shorten production lead time.

Q: How can I trust you?
A: Qinghao Electric has more than 20years manufacturing experience, and cooperated with many customers all over the world. We have many patent certificates, CE certificate, KEMA certificate, ISO9001, ISO14000 certificate. We are the audited supplier of TUV, Alibaba and Made-In-China.

Q: What should provide to make custom transformer?
A: Technical drawing and specification documents are the best, or you can list key parameters for designing.

Q: Could I have your catalog and price list?
A: Price may change based on material market. Welcome to contact for accurate price via Made-in-China or company official website, thank you.

Certificates

Business Partners