Hermetically Sealed Silicon Steel Sheet Oil Immersed Type Power Distribution Step Down Transformer 20kv 1000kVA 1250kVA 1600kVA 2000kVA 2500kVA

• Application: Power, Instrument, Lighting
• Phase: Three
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001-2000, ISO9001, CCC
• Model NO.: S13/18 20kv 1000-2500kVA
• Usage: Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Ring
• Brand: Qinghao
• Standard: IEC60076 / GB1094
• Connection Group: Y,Yn0/D,Yn11
• Product Name: Oil Immersed 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: 8504220000
• 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 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(%)	S22 (W)			S20 (W)			S13/18 (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
100	5.5	120	1140	1080	135	1260	1200	145	1580	1500	1.60	54	750	810	760	1050
125		135	1360	1300	160	1510	1440	175	1890	1800	1.50	56	820	860	780	1100
160		170	1660	1580	190	1850	1760	210	2310	2200	1.40	56	860	910	810	1140
200		195	1970	1870	220	2190	2080	250	2730	2600	1.30	58	910	1220	820	1150
250		235	2300	2200	265	2560	2440	295	3200	3040	1.20	58	950	1270	860	1170
315		280	2760	2630	315	3070	2920	350	3830	3650	1.10	60	1280	1300	900	1200
400		335	3260	3090	375	3620	3440	420	4520	4300	1.00	60	1350	1490	990	1240
500		400	3900	3700	440	4330	4120	500	5400	5140	1.00	62	1560	1570	1040	1250
630	6.0	480	4470		530	4960		590	6200		0.90	62	1840	1600	1090	1260
800		570	5400		645	6010		720	7500		0.80	64	2180	1710	1200	1320
1000		670	7390		755	8220		840	10270		0.70	64	2540	1820	1270	1430
1250		805	8650		905	9600		1005	12000		0.70	67	3120	1880	1290	1630
1600		975	10470		1090	11640		1210	14540		0.60	67	3790	1950	1310	1650
2000		1125	12500		1270	13890		1410	17370		0.60	67	4050	2050	1340	1900
2500		1325	12720		1490	14130		1655	20180		0.50	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.

Certificates

Business Partners