Buy Transformer Stations Quotes – 110kV level three-phase on-load tap-changing power transformer – JSM TRANSFORMER

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Buy Transformer Stations Quotes – 110kV level three-phase on-load tap-changing power transformer – JSM TRANSFORMER Detail:

110kV LEVEL THREE-PHASE ON-LOAD TAP-CHANGING

ELECTRIC POWER TRANSFORMER

Summary

We have adopted series of important reforms on the 110kV level three-phase oil-immersed on-load tap-changing transformer referring material,
process and structure. The transformer has the features of small size, light weight, high efficiency, low loss, low noise, reliable operation etc,
which can reduce a large amount of power network loss and operation expenses with significant economic beneffts. It is suitable for power plant substation,
heavy section plant ore enterprises etc.

Main 110kV level three-phase on-load tap-changing 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	%
6300		6.3 6.6 10.5 11	YNd11	7.40	35.0	0.62	10.5
8000				8.90	42.0	0.62
10000				10.50	50.0	0.58
12500				12.40	59.0	0.58
16000				15.00	73.0	0.54
20000				17.60	88.0	0.54
25000	110±2*2.5%			20.80	104	0.50
31500	115±2*2.5%			24.60	123	0.48
40000	121±2*2.5%			29.40	148	0.45
50000				35.20	175	0.42
63000				41.60	208	0.38
75000		13.8 15.75 18 21		47.20	236	0.33	12-14
90000				54.40	272	0.30
120000				67.80	337	0.27
150000				80.10	399	0.24
180000				90.00	457	0.20

Note 1:-5% tapping position is maximum current tapping.
Note 2: For boost transformer, it is advisable to adopt non-tapping structure. If there is any requirement for operation, sub-connectors can be set up.
Note 3: When the average annual load rate of transformer is between 42% and 46%, the maximum operating efficiency can be obtained by using the loss value in the table.

6300kVA-63000kVA three-phase three -winding NLTC power transformer
Rated Capacity (kVA)	Voltage Combination			Vector Group	No-load loss kW	Load loss kW	No load current %
	High Voltage kV	Med-ium Voltage (kV)	Low Voltage (kV)					Step down
6300					8.9	44.00	0.66
8000					10.6	53.00	0.62
10000					12.6	62.00	0.59
12500		33	6.3		14.7	74.00	0.56	H-M
16000	110±2*2.5%	35	6.6	YNyn0d11	17.9	90.00	0.53	10.5
20000	115±2*2.5%	37	10.5		21.1	106	0.53	H-L
25000	121±2*2.5%	38.5	11		24.6	126	0.48	18-19
31500					29.4	149	0.48	M-L
40000					34.8	179	0.44	6.5
50000					41.6	213	0.44
63000					49.2	256	0.40

Note l: High, medium and low voltage winding capacity allocation is (100/100/100)% high, medium and low.
Note 2: The connection group label can be YNd11y10 as required.
Note 3: According to the user’s requirement, medium voltage can be selected as different from the voltage value in the meter or with taps.
Note 4:-5% tapping position is maximum current tapping.
Note 5: For boost transformer, it is advisable to adopt non-tapping structure. If the operation requires, tapping can be set up.
Note 6: When the average annual load rate of transformer is about 45%, the maximum operating efficiency can be obtained by using the loss value in the table.

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	%
6300				8.00	35.0	0.64	10.5
8000				9.60	42.0	0.64
10000		6.3 6.6 10.5 11		11.30	50.0	0.59
12500		6.6		13.40	59.0	0.59
16000		10.5		16.10	73.0	0.55
20000	110±8*1.25%	11	YNd11	19.20	88.0	0.55
25000		21		22.70	104	0.51
31500				27.00	123	0.51
40000				32.30	156	0.46	12-18
50000				38.20	194	0.46
63000				45.40	232	0.42

Note 1: On-load tap-changer, temporarily providing step-down structure products.
Note 2: According to user’s requirements, other voltage combination products can be provided.
Note 3:-10% tapping position is maximum current tapping.
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.

6300-63000kVA three phase two winding OLTC 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	%
6300					9.6	44.00
8000					11.5	53.00
10000			6.3		13.6	62.00
12500		33	6.6		16.1	74.00	H-M
16000		36	10.5		19.3	90.00	10.5
20000	110±8*1.25%	37	11	YNyn0d11	22.8	106	H-L
25000		38.5	21		27.0	126	18-19
31500					32.1	149	M-L
40000					38.5	179	6.5
50000					45.5	213
63000					54.1	256

Note 1: On-load tap-changer, temporarily providing step-down structure products.
Note 2: High, medium and low voltage winding capacity allocation is (100/100/100)% high, medium and low.
Note 3: The connection group label can be YNd11y10 as required.
Note 4:-10% tapping position is maximum current tapping.
Note 5: According to user’s requirement, medium voltage can be selected as diferent from the voltage value in the meter or with Note 5: When the average annual load rate of transformer is about 47%,the maximum operating efficiency can be obtained by using the loss value in the table.

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	%
6300				8.00	35.0	0.64	10.5
8000				9.60	42.0	0.64
10000				11.30	50.0	0.59
12500		6.3 6.6 10.5 11		13.40	59.0	0.59
16000		6.6		16.10	73.0	0.55
20000	110±8*1.25%	10.5	YNd11	19.20	88.0	0.55
25000		11		22.70	104	0.51
31500		21		27.00	123	0.51
40000				32.30	156	0.46	12-18
50000				38.20	194	0.46
63000				45.40	232	0.42

 

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