High Voltage Power Transformer 1mva 40mva 75mva 100mva Oil Immersed Transmission Distribution Transformer Price

• Customization: Available
• Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio
• Phase: Three
• Model NO.: QHAM
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001-2000, ISO9001, CCC, ISO14001, ISO45001, CQC, CE, UL, Kema
• Usage: Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: EI
• Brand: Qinghao or Customized
• Kv kVA Mva Power Transformer: High Voltage Oil Immersed Distribution Transformer
• Transformer Price: Two Winding Outdoor Liquid Filled Transformer
• Standard: IEC60076 / GB1094/ANSI/IEEE
• Connection Vector Groups: Wye-Delta, Dyn1/Dyn11/Yyn0/Ynd1/Ynd11
• Rated Voltage: 10/20/33/0.4kv, 33/10kv
• Frequency: 50/60Hz
• Warranty: 24 Months
• Insulating Medium: Mineral Oil / Vegetable Oil
• Insulation Class/Cooling Ways: a-Class, Onan, Onaf, Knan, Ofat, Odaf
• Tapping Range: +/-2 X 2.5%(Customized), Nltc/Oltc
• Winding Coil Material: Copper / Aluminium
• Core Material: Silicon Steel / CRGO
• Customized Transformer: China Manufacturer Factory Supplier Vendor
• Hot Selling Transformer: Pad Mounted, Pole Mounted, Voltage Step up Down
• Top 10 Popular Products: Oil, Dry Type Transformer, Substation, Switchgear
• Transport Package: Wooden Case or Pallet
• Specification: 11kv, 22kv, 35kv, 50kva-3150kva
• 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.

High efficiency, low loss, low noise, strong load resistance and long service life.

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.)

Please check below quick links for other product types. 

 

Product Parameters

The rated voltage can be customized as customers' requirements. For instant communication, please click .  

High Voltage:35(33,38.5)KV                              Connection Symbol:Yd11 or YNd11                          Rated Frequency:50Hz/60Hz     Low Voltage:10(3.15,6.3,10.5,11)KV                Tapping Range of HV:±2x2.5%                                 Insulation Level:LI200 AC85/LI75 AC35
Rated power (KVA)	Short-Circuit Impedance(%)	S22 (KW)		S20 (KW)		S11/S13/18 (KW)		No-Load Current (%)	Sound pressure dB(A)	Weight (kg)	Overall Dimension(mm)
		No-Load Loss	On-Load Loss	No-Load Loss	On-Load Loss	No-Load Loss	On-Load Loss				L	W	H
800	6.5	0.57	6.8	0.64	6.8	0.72	8.6	0.80	62	4000	2150	1380	2420
1000		0.67	8.4	0.75	8.4	0.84	10.5	0.70	62	4500	2210	1480	2500
1250		0.82	10.1	0.92	10.1	1.02	12.6	0.60	65	4900	2470	1550	2600
1600		0.99	12.1	1.11	12.1	1.23	15.1	0.50	65	6000	2600	1620	2700
2000		1.27	13.3	1.43	13.3	1.59	16.6	0.50	65	6600	2780	1850	2790
2500		1.49	14.6	1.68	14.6	1.86	17.8	0.50	67	7600	2830	2000	2860
3150	7.0	1.55	18.8	1.82	18.8	2.18	19.9	0.45	70	8400	2890	2340	3130
4000		1.82	22.4	2.09	22.4	2.64	23.5	0.45	72	9600	2950	2780	3210
5000		2.18	25.6	2.55	25.6	3.18	27.0	0.45	74	10900	3000	3050	3230
6300	8.0	2.64	28.6	3.09	28.6	3.82	30.3	0.45	74	12600	3190	3200	3250
8000		3.64	31.5	4.27	31.5	5.27	33.2	0.40	76	15700	3250	3280	3600
10000		4.36	37.1	5.18	37.1	6.36	39.1	0.40	76	19500	3270	3460	3610
12500		5.00	44.0	5.91	44.0	7.27	46.5	0.35	78	20600	3290	3680	3640
16000		6.09	53.8	7.18	53.8	8.82	56.8	0.35	80	26300	3350	3960	4100
20000		7.18	65.1	8.55	65.1	10.45	68.6	0.35	80	31500	3460	3980	4150
25000	10.0	8.55	76.9	10.09	76.9	12.36	81.2	0.30	83	33500	4000	3640	4370
31500		10.09	91.6	11.91	91.6	14.73	96.7	0.30	83	40100	3890	4420	4510
Note: The above parameters are only for designing and selecting  reference, and the final parameters are subject to the actual product.

 

Detailed Photos

Main Components:

1. Core: Typically made of laminated steel sheets.
2. Windings: Primary Winding and Secondary Winding.
3. Insulation: To prevent electrical conductivity between windings and the core, and turns of the windings.
4. Tank: To house magnetic core and windings. 
5. Cooling System: Natural air cooling, forced air cooling, oil cooling with radiators, oil cooling with fans or heat exchangers.
6. Bushing: Maintain electrical isolation. 
7. Tap Changer: Maintain voltage stability despite fluctuations in load or input voltage.
8. Breather: Regulate the intake of air when the oil level expands and contracts due to temperature changes for oil transformer.
9. Conservator: Also called expansion tank to ensure the oil level remains constant in the main tank.

Packaging & Shipping

 

Company Profile

Qinghao Transformer is a reliable and specialized power transmission and distribution equipment manufacturer for over 20 years with a registered capital of USD8,000,000.

Except for ISO9001, ISO14001, ISO45001 certificates, we are also TUV audited suppliers with AAA enterprise and AAA products honors.  All products comply with GB and IEC related standards, which mainly include oil immersed distribution transformer, dry-type transformer, amorphous alloy transformers, combined transformer substations, circuit breaker, cable branch box, high low voltage switchgear cabinet distribution equipment. 

With the concept of "World-class transformers, smart solutions", Qinghao Transformer is devoting to provide high-quality power for customers.

Let us cooperate with a brighter future!

 

FAQ

Q: Are you a Manufacturer or Trading company?   
A: We are the original factory with approved export license.

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

Q: How can I trust you?
A: We are TUV aduited supplier with many patent certificates, type test reports, CQC, CE, KEMA, ISO certificates. We can provide on site services for many areas like South America, Indonesia, etc.

 

Certificates

 

Business Partners