220kv Double-Winding Power Transformers with off-Circuit Tap Changer

• Customization: Available
• Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio
• Phase: Three
• Model NO.: SSZ11-240000/220
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001, CCC
• Usage: Power Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Ring
• Transport Package: According to Client′ S
• Specification: As manufacturer′ s design
• Trademark: HZEC
• Origin: China
• HS Code: 8504232100
• Production Capacity: 25/ Quarter

Product Description

Product Description

220kV Power Transformer The 220kV transformer is a high-voltage oil-immersed transformer with a core-type structure. It can be classified by phase number into single-phase transformers and three-phase transformers; by voltage regulation method into on-load tap-changing transformers and no-load tap-changing transformers; by winding coupling method into power transformers and autotransformers; by the number of windings into double-winding, three-winding, and three-winding plus balance winding transformers. Additionally, it includes special types such as split transformers and combined transformers. The product is designed according to IEC international standards, IEEE standards, and current national standards.

 

Main Features

Low Noise: Reduces noise pollution to the environment.

Low Partial Discharge: Ensures stable and reliable transformer operation.
Low Temperature Rise: Provides strong overload capacity.
Low Loss: Optimizes energy structure.
Leakage-Free: Ensures high sealing performance of the transformer.
Maintenance-Free: Reduces customer maintenance costs.
High Impedance: Offers high short-circuit resistance, providing transformer safety.
Smart Components: Incorporates intelligent substation design technolog .

Henan Energy Electric Equipment Co., Ltd. was established in 2011 and is an excellent and reliable transformer manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations and high and low voltage complete sets of equipment.The equipment put into production and operation of the project advocates energy saving, intelligence, information and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center,with 71 utility model patents and 15 invention patents.With years of accumulation in the transformer industry and strong technological innovation capabilities, HZEC Products are sold to the Middle East, North America, South America, Europe, Southeast Asia, Africa and other regions, covering more than 40 countries.

 

Product Details

Their main features include:

1. Low noise, reducing noise pollution to the environment;
2. Low partial discharge, ensuring stable and reliable operation of the transformer;
3. Low temperature rise, with strong overloading capacity;
4. Low loss, optimizing the energy structure;
5. No leakage, with high sealing performance of the transformer;
6. Maintenance-free, reducing the customer's maintenance costs;
7. High impedance, with high short-circuit resistance, enhancing the safety performance of the transformer;
8. Utilization of intelligent components, incorporating intelligent power station design technology.

Product Parameters

 

220kV Double-winding Power Transformers with Off-circuit Tap Changer

Rated capacity (kVA)	Voltage ratio andtap range            (kV)		Connection Symbol	No-load loss (kW)	Full-load loss (kW)	Impedance (%)	No-load current (%)
	HV	LV
31500	220   242±2x2.5%	6.3    6.6    10.5    11	YNd11	35	135	12~14	0.70
40000				41	157		0.70
50000				49	189		0.65
63000				58	220		0.65
75000		10.5    11    13.8		67	250		0.60
90000				77	288		0.55
120000				94	345		0.55
150000		11;13.8; 15.75;20		112	405		0.50
180000				128	459		0.46
240000				160	567		0.42
300000		15.75;  18;20		189	675		0.38
360000				217	774		0.38

220kVDouble-winding Power Transformers with Off-circuit TapChanger With 66kV of Low Voltage

Rated capacity (kVA)	Voltage ratio and tap range (kV)		Connection Symbol	No-load loss (kW)	Full-load loss (kW)	Impedance (%)	No-load current (%)
	HV	LV
31500	220±2x2.5%	63 66 69	YNd11	38	151	12~14	0.89
40000				45	176		0.89
50000				53	211		0.82
63000				63	247		0.82
90000				83	323		0.75
120000				102	387		0.75
150000				122	453		0.68
180000				138	513		0.68
240000				171	635		0.61

220kV Double-winding Power Transformers with On-load Tap-changer

Rated capacity (kVA)	Voltage ratio and tap range (kV)		Connection Symbol	No-load loss (kW)	Full-load loss (kW)	Impedance (%)	No-load current (%)
	HV	LV
31500	220±8x1.25%	66.3;6.6   10.5;11    35;37;38.5	YNd11	38	135	12~14	0.70
40000				45	157		0.63
50000				54	189		0.56
63000				63	220		0.56
90000		10.5;11 35;37;38.5		80	288		0.49
120000				99	346		0.49
150000				116	405		0.42
180000				135	468		0.42
120000		66 69		102	355		0.49
150000				120	415		0.42
180000				140	475		0.42

220kV Three-winding Power Transformers with Off-circuit Tap Changer

Rated capacity (kVA)	Voltage ratio and tap range           (kV)              HV         MV        LV			Connection Symbol	No-load loss (kW)	Full-load loss (kW)	Impedance         (%)      step-up      step-down		No-load current (%)
31500	220 242±2 X 2.5%	69 115 121	6.3  6.610.5  11  3537  38.5	YNyn0d11	40	162	H-M 22~24 H-L 12~14 M-L 7~9	H-L 22~24 H-M 12~14 M-L 7~9	0.70
40000					48	189			0.63
50000					56	225			0.56
63000					66	261			0.56
90000			10.511  13.835  3738.5		86	351			0.49
120000					106	432			0.49
150000			1113.8  15.75  3537  38.5		125	513			0.42
180000					142	585			0.42
240000					176	720			0.35
300000					208	750			0.30

220kV Three-winding Auto-transformers with Off-circuit Tap Changer

Rated capacity (kVA)	Voltage ratio and tap range (kV)			Connection Symbol	No-load loss (kW)		Full-load loss     (kW)		Impedance (%)		No-load current (%)
	HV	MV	LV		step-up	step-down	step-up	step-down	step-up	step-down
31500			6.6  10.5 11 35 37   38.5	YNyn0d11	25	22	117	99	H-M	H-M	0.50
40000					29	26	144	121			0.50
50000	220				34	30	170	144	12~14	8~10	0.43
63000	242±2	115			40	36	201	171	H-L	H-L	0.43
90000	X	121			50	46	276	234			0.36
120000	2.5%		10.5 11 13.8 15.75 18 35 37 38.5		02	56	340	288	8~12	28~34	0.36
150000					70	60	405	342	M-L	M-L	0.33
180000					80	72	464	387			0.33
240000					95	86	595	504	14~18	18~24	0.25

 220kV Three-winding Power Transformers with On-load Tap-changer

Rated capacity (kVA)	Voltage ratio and tap range           (kV)       HV        MV         LV			Connection Symbol	No-load loss (kW)	Full-load loss (kW)	Impedance (%)	No-load current (%)
31500	220 ±8 X 1.25%	69 115 121	6.3 6.6 10.511 35 37 38.5	YNyn0d11	44	162	H-L 22~24 H-M 12~14 M-L 7~9	0.77
40000					52	189		0.70
50000					60	225		0.63
63000					70	261		0.63
90000			10.5 11 35 37 38.5		92	351		0.56
120000					115	432		0.56
150000					135	513		0.49
180000					159	630		0.49
240000					193	780		0.45

220kV Three-winding Auto-transformers with On-load Tap-changer

Rated capacity (kVA)	Voltage ratio and tap range           (kV) HV         MV         LV			Connection Symbol	No-load loss (kW)	Full-load loss (kW)	Impedance (%)	No-load current (%)
31500	220 ±8 X 1.25%	115 121	6.3 6.610.5 11 35 37 38.5	YNyn0d11	25	108	H-L 28~34 H-M 8~10 M-L 18~24	0.56
40000					30	132		0.56
50000					36	157		0.49
63000					42	189		0.49
90000					51	247		0.42
120000			10.5 11 00 37 38.5		64	308		0.42
150000					76	365		0.35
180000					85	419		0.35
240000					104	540		0.30

 

Product Display

Service environment
1.Device types: outdoor type

2.Type of Voltage Regulation: Off-circuit or On-Ioad
3.Tapping Range: ±5 % ±2x2.5 % ±4x2.5 %
4.Frequency: 50Hz or 60Hz
5.Phases: Three or single
6.Connection Symbol: Dyn11,Yyn0 ( or as requested)
7.Short- circuit Impedance: Standard Impedance
8.Altiude is not exceeding 1000m,ambient temperature not exceeding 40OC. If it can't meet such conditions,we will modulate parameters in accordance with standard.

Fields of application

 

Customer Case

After-sales service
1.Our company provides you with project design and process design, and designs and manufactures products according to your equipment purchase plan and specific needs. And train technical and operating personnel for you.

2.The newly purchased products are provided with online assistance for installation and debugging. The products are under the lifelong service system. If problems occur in normal use, we will provide solutions within one working day after receiving user's feedback. We will try our best to get the product up and running as soon as possible. And there are regular visits by professional technicians to ensure the long-term, safe and reliable use of our products.

3.We use quality authentic materials, process and manufacture in strict compliance with ISO9001:2000 international quality management to ensure the quality of excellence and the smooth installation!
 

Packaging & Shipping