Buy Main Transformer Factories – 220kV class three-phase on-load – JSM TRANSFORMER

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Buy Main Transformer Factories – 220kV class three-phase on-load – JSM TRANSFORMER Detail:

220kV THREE-PHASE ON-LOAD VOLTAGE REGULATING

TRANSFORMER

Summary

220kV three-phase oil immersed on-load voltage regulating transformer brings about a series of major transformations in terms of material, technique, and construction. It is characteristic of compact construction,
low weight, high efficiency, low loss, low noise, and reliability of performance. The product can reduce considerable losses on grid and operational costs and extend distinct economic efficacy.
The product meets following national standards: GB1094.1-2013 Power transformers Part 1: General; GB1094.2-2013
Power transformers Part 2: Temperature rise; GB1094.3-2003 Power transformers Part 3: Insulation levels, dielectric tests and external clearances in air; GB1094.5-2003 Power transformers Part 5: Ability to withstand short-circuit;
GB/T6451-2015 Specification and technical requirements for three phase oil immerse power transformers.

Main 220kV level three-phase on-load voltage regulating power transformer technical parameters
Rated Capacity (kVA)	Voltage Combination		Vector Gourp	No-load Loss	Load Loss	No Load Current		Short Circuit Impedance %
	HV (kV)	LV k(V)		kW	kW	%
31500		6.3 6.6 10.5 11	YNd11	28	128	0.56		12-14
40000				32	149	0.56
50000				39	179	0.52
63000				46	209	0.52
75000		10.5 13.8		53	237	0.48
90000				64	273	0.44
120000				75	338	0.44
150000	220±2*2.5%	10.5，11，13.8		89	400	0.40
160000	242±2*2.5%	15.75		93	420	0.39
180000		18，20		102	459	0.36
240000				128	538	0.33
300000		13.8 15.75 18 21		154	641	0.30
360000				17	735	0.30
370000				176	750	0.30
400000				187	795	0.28
420000				193	824	0.28

Note 1Transformers with rated capacity less than 31500 kVA and other voltage combinations can also be provided as required.
Note 2 Transformers with low voltage of 35 kV or 38.5 kV can also be provided as required.
Note 3 The non-splitting structure is preferred. If there is any requirement for operation, sub-connectors can be set up.
Note 4 When the average annual load rate of transformer is between 45% and 50%, the maximum operating efficiency can be obtained by using the loss value in the table.

 

31500-300000kVA three-phase three -winding non-field excitation changing power transformer
Rated Capacity (kVA)	Voltage Combination			Vector Group	No-load loss kW	Load loss kW		No load current %	Short-circuit impedance(%）
	High Voltage kV	Med-ium Voltage (kV)	Low Voltage (kV)						Step down	Step down
31500			6.3,6.6 10.5,21 36,37 38.5		32	153.00		0.56
40000					38	183.00		0.5
50000					44	216.00		0.44
63000					52	257.00		0.44	H-M	H-M
90000	220±2*2.5%	69	10.5,13.8 21,36,37 38.5	YNyn0d11	68	333.00		0.39	22-24	22-24
120000	230±2*2.5%	115			84	410		0.39	H-L	H-L
150000	242±2*2.5%	121			100	487		0.33	12-14	12-14
180000			10.5,13.8 15.75,21 37,38.5		113	555		0.33	M-L	M-L
240000					140	684		0.28	7-9	7-9
300000					166	807		0.24

Note 1: The capacity allocation of load loss in the table is (100/100/100)%. The capacity allocation of boost structure can be
(100/50/100)%. The capacity allocation of Buck structure can be (100/50/100)% or(100/50/100)%.
Note 2: Transformers with rated capacity less than 31500 KA and other voltage combinations can also be provided as required.
Note 3: Transformers with low voltage of 35 kV can also be provided as required.
Note 4: Priority should be given to non-splitting structure. If the operation requires, splitting can be set.
Note 5: When the average annual load rate of transformer is between 45%, the maximum operating efficiency can be obtained by using the loss value in the table.

 

31500kVA-180000kVA three-phase duplex-winding on-load tap changing power transformer
Rated Capacity (kVA)	Voltage Combination		Vector Gourp	No-load Loss	Load Loss	No Load Current		Short Circuit Impedance %
	HV (kV)	LV k(V)		kW	kW	%
31500		6.3,6.6 10.5,11,21 36,37 38.5		30	128	0.57		12-14
40000				36	149	0.57
50000				43	179	0.53
63000				50	209	0.53
90000				64	273	0.45
120000	220±8*1.25%	10.5,11,21 36,37 38.5	YNd11	79	338	0.45
150000	230±8*2.5%			92	400	0.41
180000				108	459	0.38
120000				81	337	0.45
150000		66 69		96	394	0.41
180000				112	451	0.38
240000				140	560	0.30

 

31500kVA-240000kVA three-phase three-winding on-load tap changing power transformer
Rated Capacity (kVA)	Voltage Combination			No-load Loss	Load Loss	No Load Current	Vector group	Short Circuit Impedance %	Capacity Assignment
	HV (kV)	Med-ium Voltage (kV)	LV k(V)	kW	kW	%
31500			6.3 6.6 10.5 11 21 33 36 37 38.5	35	153.00	0.63		H-M 12-14 H-L 22-24 M-L 7-9	100/100/100 100/50/100 100/100/50
40000				41	183.00	0.60
50000				48	216.00	0.60
63000		69		56	257.00	0.55
90000	220±8*1.25%	115	10.5 11 21 33 36 37 38.5	73	333.00	0.44	YNyn0d11
120000	230±8*1.25%	121		92	410	0.44
150000				108	487	0.39
180000				124	598	0.39
240000				154	741	0.35

Note 1The data listed in the table are applicable to depressurized structural products, and boost structural products can also be provided as required.
Note 2 Transformers with low voltage of 35 kV can also be provided as required.
Note 3 When the average annual load rate of transformer is between 45% and 50%, the maximum operating efficiency can be obtained by using the loss value in the table.

 

31500kVA-240000kVA three-phase three-winding on-load  self-coupled  power transformer
Rated Capacity (kVA)	Voltage Combination			No-load Loss	Load Loss	No Load Current	Vector group	Short Circuit Impedance %	Capacity Assignment
	HV (kV)	Med-ium Voltage (kV)	LV (kV)	kW	kW	%
31500			6.3 6.6 10.5 21 36 37 38.5	20.0	102	0.44	YNyn0d11	H-M 8-11 H-L 28-34 M-L 18-24	100/100/50
40000				24.0	125	0.44
50000				28.0	149	0.39
63000				33.0	179	0.39
90000	220±8*1.25%	115		40.0	234	0.33
120000	230±8*1.25%	121	10.5 21 36 37 38.5	51.0	292	0.33
150000				60.0	346	0.28
180000				68.0	398	0.28
240000				83.0	513	0.24

Note 1 The data listed in the table are applicable to depressurized structural products, and boost structural products can also be provided as required.
Note 2Transformers with low voltage of 35 kV can also be provided as required.
Note 3 When the average annual load rate of transformer is between 45% and 50%, the maximum operating efficiency can be obtained by using the loss value in the table.

 

31500kVA-240000kVA three-phase three-winding on-load  self-coupled  power transformer
Rated Capacity (kVA)	Voltage Combination			No-load Loss	Load Loss	No Load Current	Vector group	Short Circuit Impedance %	Capacity Assignment
	HV (kV)	Med-ium Voltage (kV)	LV (kV)	kW	kW	%
31500			6.3 6.6 10.5 21 36 37 38.5	20.0	102	0.44	YNyn0d11	H-M 8-11 H-L 28-34 M-L 18-24	100/100/50
40000				24.0	125	0.44
50000				28.0	149	0.39
63000				33.0	179	0.39
90000	220±8*1.25%	115		40.0	234	0.33
120000	230±8*1.25%	121	10.5 21 36 37 38.5	51.0	292	0.33
150000				60.0	346	0.28
180000				68.0	398	0.28
240000				83.0	513	0.24

1.Products exclusive in the product list may also be provided upon user requirements.Performance of the products will be customized.
2.Medium voltage device could select voltage value or tap other than those specified in the table upon user requirement.High voltage tapping may choose asymmetrical regulating tapping.
3.Short circuit impedance may choose value other than those defined in the table.
4.Final size is based on drawings of signed contract.

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