Factory Direct Sales Low Loss Oil 20kv 35kv Three-Phase Amorphous Alloy Oil Filled Transformer 20 Years Longer Service Life Transformer

• Customization: Available
• Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio
• Phase: Three
• Model NO.: QHSCBH13 20kv
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Multi-winding Transformer
• Certification: ISO9001-2000, ISO9001, CCC, ISO14001, ISO45001, CQC, CE, UL, Kema
• Usage: Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: EI
• Brand: Qinghao or Customized
• Transformador Fabricado En China: Kv kVA Mva Transmission Distribution-Transformer
• Prefabricated Transformer Substation: Two Three Winding Outdoor Liquid Filled
• Customized Transformer: China Manufacturer Factory Supplier Vendor
• Hot Selling Transformer: Pad Mounted, Pole Mounted, Tap Changer,
• Top 10 Popular Products: Single Phase, Prefabricated Substation, Switchgear
• Low Medium High Voltage: IEC60076 / GB1094/ANSI/IEEE Standard
• Connection Vector Groups: Wye-Delta, Dyn1/Dyn11/Yyn0/Ynd1/Ynd11
• Rated Voltage: 10/20/33/0.4kv, 33/10kv
• Low 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
• Transport Package: Wooden Case or Pallet
• Specification: 11kv, 22kv, 35kv, 50kva-3150kva
• 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.

Amorphous alloy oil immersed distribution transformer is a promising new technology. It has the potential to revolutionize the power transformer industry since it uses amorphous alloy insulation material instead of traditional dielectric materials like rubber or silicone oil. This type of transformer is designed to withstand high temperatures and voltage fluctuations, making it ideal for use in harsh industrial environments. The transformer is immersed in an oil bath, which helps to insulate the amorphous alloy from the environment and prevent moisture or contaminants from entering. The oil acts as a coolant, reducing the heat generated by the transformer and improving its efficiency.

Main Characteristics:
1. Designed by patented technology and software with premium performance.
2. Core is made of high quality amorphous alloy.
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. Able to withstand extreme temperature fluctuations.
The insulation material can withstand temperatures of up to 700°C without melting, making it suitable for use in environments with high heat or cold.
2. High level of insulation. 
Amorphous alloy is known for its high dielectric strength, which means it can withstand large voltage fluctuations without breaking down. This makes it an ideal choice for use in distribution transformers, where high voltage is common.

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 10kv 20kv 33kv can be customized as customers' requirements. For instant communication, please click .  
 

20KV Series Amorphous Alloy Oil Immersed Distribution Transformer Performance Parameters
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(%)	S(B)H25 (W)			S(B)H21 (W)			S(B)H15 (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	30	560	530	40	585	560	40	690	660	1.5	58	700	1000	550	750
50		45	815	775	55	865	820	55	1010	960	1.2	62	840	1030	680	800
63		50	970	930	65	1025	985	65	1200	1150	1.1	62	910	1050	600	830
80		65	1165	1110	75	1230	1170	75	1440	1370	1.0	64	980	1070	620	850
100		70	1390	1340	90	1480	1415	90	1730	1650	0.9	58	1050	1100	660	900
125		85	1685	1595	100	1780	1695	100	2080	1980	0.8	62	1140	1160	680	950
160		95	2055	1960	120	2170	2070	120	2540	2420	0.6	62	1200	1210	700	1000
200		115	2430	2310	145	2560	2450	145	3000	2860	0.6	64	1250	1520	700	960
250		130	2850	2710	165	3010	2870	165	3520	3350	0.6	64	1330	1580	760	940
315		160	3410	3240	200	3600	3430	200	4210	4010	0.5	67	1800	1600	800	970
400		190	4025	3830	240	4250	4045	240	4970	4730	0.5	67	1890	1820	880	1080
500		230	4810	4580	290	5080	4835	290	5940	5660	0.5	69	2180	1870	950	1100
630	6.0	290	5520		370	5830		370	6820		0.3	69	2580	1900	1000	1100
800		355	6685		450	7060		450	8250		0.3	71	3060	2010	1100	1180
1000		425	9175		530	9680		530	11330		0.3	71	3560	2120	1170	1280
1250		500	10690		620	11290		620	13200		0.2	74	4380	2180	1190	1480
1600		600	12920		750	13640		750	15950		0.2	74	5300	2250	1210	1500
2000		700	14640		900	15480		900	19140		0.2	75	5670	2350	1190	1750
2500		840	16930		1080	17080		1080	22220		0.2	75	7700	2500	1150	1850
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