110KV-220KV Liquid-immersed Power Transformer

Products Description

110KV-220KV power transformers are used in power plants, substations and large industrial and mining enterprises. They have the characteristics of low loss, low temperature rise, low noise, low partial discharge, and strong short-circuit resistance, thus saving a lot of power loss and operating costs.

Special features

Core
High-quality grain-oriented cold-rolled silicon steel sheet and the whole oblique non-porous banding structure are used in the transformer. The core has a multi-level ladder shape, with three joints or five joints, which is of low no-load loss and low noise. Rolled cores are direct rolled by certain special equipment, which gives the advantages including no seam, no corner weight, reluctance reduction, low no-load loss. Amorphous alloy is an advanced core material, which leads to an average reduction of 72% no-load loss and a reduction of 50% no-load current.
Coil
The high-quality QQ acetal enameled round copper wire and oxygen-free copper rod are used to form the coil. The coil type includes cylinder type, continuous type, new type spiral type, split type, etc. It has sufficient electrical strength, mechanical strength and cooling capacity.
In order to increase the capacity of anti-short circuit of the transformer, self-adhesive transposition wire is used in the 35kV and above windings. The wire is made of self-adhesive acetal enameled flat wire, and after winding into a coil, it is heated so that the flat wire could be bonded between each other to form a rigid coil, which can withstand greater bending stress, thereby enhancing the capacity of anti-short circuit of the transformer. The most important feature of the self-adhesive transposition wire is that it can reduce the loss of the transformer, and as a result of multi-stranded conductor with transposition, the eddy current loss and circulation loss are greatly reduced, it can also reduce the temperature rise of the partial hot spots of winding, thus the winding temperature distribution is more uniform.
Oil tank
The oil tank is made of high quality steel plate, and the shape includes elliptical shape, rectangular shape, etc. The type of the radiator includes corrugated sheet type radiator, expansion type radiator and corrugated type tank. The sealing performance test is conducted on oil tanks. The inside and outside surfaces are pickling, and phosphate treated, and then spray priming paint for three times and surface paint for one time, which give its corrosion resistance.

Ambient air temperature
--- Maximum temperature: +40ºC
--- Minimum temperature: -45ºC
--- Average temperature of the warmest month: +30ºC
--- The hottest annual average temperature: +20ºC
Altitude: ≤ 1000m
Contamination class: III;
Seismic intensity: VIII
Power supply voltage waveform: approximately sinusoidal;
Note: If the above conditions are exceeded, please specify when ordering, for special consideration.

Product Parameters

110kV, Off-load, Liquid-immersed Power Transformer

Rated Capacity (kVA)		Level 1 (S22)		Level 2 (S20)		Level 3 (S13)			Short-circuit impedance%
No-load loss (kW)	Load loss (75℃) (kW)	No-load loss (kW)	Load loss (75℃) (kW)	No-load loss (kW)		Load loss (75℃) (kW)
6300	4.1		32	4.8	32		5.9	33		10.5
8000	4.9		38	5.8	38		7.1	40
10000	5.8		45	6.8	45		8.4	48
12500	6.8		53	8.1	53		9.9	56
16000	8.3		65.7	9.8	65.7		12.0	69
20000	9.7		79	11.4	79		14.1	84
25000	11.4		94	13.5	94		16.6	99
31500	13.5		111	16.0	111		19.7	117
40000	16.2		133	19.1	133		23.5	141
50000	19.4		158	22.9	158		28.2	166
63000	22.9		187	27.0	187		33.3	198
75000	26.0		212	30.7	212		37.8	224		12~14
90000	29.9		245	35.4	245		43.5	258
120000	37.3		303	44.1	303		54.2	320
150000	44.1		359	52.1	359		64.1	379
180000	49.5		411	58.5	411		72.0	434

*All parameters are for reference only; The final data will be customized according to the order.

110kV, On-load, Liquid-immersed Power Transformer

Rated Capacity (kVA)		Level 1 (S22)		Level 2 (S20)		Level 3 (S13)			Short-circuit impedance%
No-load loss (kW)	Load loss (75℃) (kW)	No-load loss (kW)	Load loss (75℃) (kW)	No-load loss (kW)		Load loss (75℃) (kW)
6300	4.4		32	5.2	32		6.4	33		10.5
8000	5.3		38	6.2	38		7.7	40
10000	6.2		45	7.3	45		9.0	48
12500	7.4		53	8.7	53		10.7	56
16000	8.9		66	10.5	66		12.9	69
20000	10.6		79	12.5	79		15.4	84
25000	12.5		94	14.8	94		18.2	99
31500	14.9		111	17.6	111		21.6	117
40000	17.8		140	21.0	140		25.8	148
50000	21.0		175	24.8	175		30.6	184
63000	25.0		209	29.5	209		36.3	220

*All parameters are for reference only; The final data will be customized according to the order.

110kV, High Short-circuit impedance, Off-load, Liquid-immersed Power Transformer

Rated Capacity (kVA)	Level 1 (S22)		Level 2 (S20)		Level 3 (S13)		Short-circuit impedance%
	No-load Loss (kW)	Load Loss (75℃) (kW)	No-load Loss (kW)	Load Loss (75℃) (kW)	No-load loss (kW)	Load loss (75℃) (kW)
							Step-up	Step-down
6300	4.9	40	5.8	40	7.1	42	H. V.一M.V. 17.5~18.5 H.V.-L. V. 10.5 M.V.一L.V. 6.5	H. V.一M.V. 17.5~18.5 H.V.-L. V. 10.5 M.V.一L.V. 6.5
8000	5.8	48	6.9	48	8.5	50
10000	6.9	56	8.2	56	10.1	59
12500	8.1	67	9.6	67	11.8	70
16000	9.8	81	11.6	81	14.3	86
20000	11.6	95	13.7	95	16.9	101
25000	13.5	113	16.0	113	19.7	120
31500	16.2	134	19.1	134	23.5	142
40000	19.1	161	22.6	161	27.8	170
50000	22.9	192	27.0	192	33.3	202
63000	27.1	230	32.0	230	39.4	243

*All parameters are for reference only; The final data will be customized according to the order.

110kV, High Short-circuit impedance, On-load, Liquid-immersed Power Transformer

Rated Capacity (kVA)	Level 1 (S22)		Level 2 (S20)		Level 3 (S13)		Short-circuit impedance%
	No-load Loss (kW)	Load Loss (75℃) (kW)	No-load Loss (kW)	Load Loss (75℃) (kW)	No-load loss (kW)	Load loss (75℃) (kW)
6300	5.3	40	6.2	40	7.7	42	H. V.一M.V.17.5~18.5 H.V.-L. V. 10.5 M.V.一L.V. 6.5
8000	6.3	48	7.5	48	9.2	50
10000	7.5	56	8.8	56	10.9	59
12500	8.9	67	10.5	67	12.9	70
16000	10.6	81	12.5	81	15.4	86
20000	12.5	95	14.8	95	18.2	101
25000	14.9	113	17.6	113	21.6	120
31500	17.7	134	20.9	134	25.7	142
40000	21.2	161	25.0	161	30.8	170
50000	25.0	192	29.6	192	36.4	202
63000	29.8	230	35.2	230	43.3	243

*All parameters are for reference only; The final data will be customized according to the order.

110kV, Off-load, LV 35kVA, Liquid-immersed Power Transformer

Rated Capacity (kVA)	Level 1 (S22)		Level 2 (S20)		Level 3 (S13)		Short-circuit impedance%
	No-load Loss (kW)	Load Loss (75℃) (kW)	No-load Loss (kW)	Load Loss (75℃) (kW)	No-load loss (kW)	Load loss (75℃) (kW)
6300	4.4	33	5.2	33	6.4	35	10.5
8000	5.3	40	6.2	40	7.7	42
10000	6.2	47	7.3	47	9.0	49
12500	7.2	56	8.5	56	10.5	59
16000	8.6	68	10.1	68	12.5	72
20000	10.2	85	12.0	85	14.8	89
25000	12.1	99	14.2	99	17.5	105
31500	14.3	120	16.8	120	20.7	126
40000	16.9	140	20.0	140	24.6	147
50000	20.3	174	24.0	174	29.5	183
63000	24.0	209	28.3	209	34.9	220

*All parameters are for reference only; The final data will be customized according to the order.

110kV, Series11, Off-load, Liquid-immersed Power Transformer

Rated Power (kVA)	Voltage and Combination			Vector Group	No-load loss (W)	Load loss (75℃) (W)	No-load Current (%)	Impedance at principal tapping (%)
	H. V.(kV)	Tapping	L. V.(kV)
6300	110 115 121	±2×2.5	6.3 6.6 10.5	YNd11	7.4	35	0.62	10.5
8000					8.9	42	0.62
10000					10.5	50	0.58
12500					12.4	59	0.58
16000					15	73	0.54
20000					17.6	88	0.54
25000					20.8	104	0.50
31500					24.6	123	0.48
40000					29.4	148	0.45
50000					35.2	175	0.42
63000					41.6	208	0.38
75000			13.8 15.75 18 21		47.2	236	0.33	12.0~14.0
90000					54.4	272	0.30
120000					67.8	337	0.27
150000					80.1	399	0.24
180000					90	457	0.20

*All parameters are for reference only; The final data will be customized according to the order.

110kV, Series11, Off-load, High Impedance, Liquid-immersed Power Transformer

Rated Power (kVA)	Voltage and Combination					Vector Group	No-load loss (W)	Load loss (75℃) (W)	No-load Current (%)	Impedance at principal tapping (%)
	H. V.(kV)		Tapping	H. V.(kV)	L. V.(kV)				step-up		step-down
6300		110 115 121	±2×2.5	36 37 38.5	6.3 6.6 10.5 21	YNyn0d11	8.9	44	0.66	H.V.-M.V. 17.8-18.5 H.V.-L.V. 10.5 M.V.-L.V 6.5	H.V.-M.V. 10.5 H.V.-L.V. 18~19 M.V.-L.V 6.5
8000						10.6	53	0.62
10000						12.6	62	0.59
12500						14.7	74	0.56
16000						17.9	90	0.53
20000						21.1	106	0.52
25000						24.6	126	0.48
31500						29.4	149	0.48
40000						34.8	179	0.44
50000						41.6	213	0.44
63000						49.2	256	0.40

*All parameters are for reference only; The final data will be customized according to the order.

110kV, Series11, On-load, High Impedance, Liquid-immersed Power Transformer

Rated Power (kVA)	Voltage and Combination					Vector Group	No-load loss (W)	Load loss (75℃) (W)	No-load Current (%)	Impedance at principal tapping (%)
	H. V.(kV)		Tapping	H. V.(kV)	L. V.(kV)
6300		110	±8×1.25	36 37 38.5	6.3 6.6 10.5 21	YNYn0d11	9.6	44	0.76	H.V.-M.V. 17.8-18.5 H.V.-L.V. 10.5 M.V.-L.V 6.5
8000						11.5	53	0.76
10000						13.6	62	0.71
12500						16.1	74	0.71
16000						19.3	90	0.67
20000						22.8	106	0.67
25000						27	126	0.62
31500						32.1	149	0.62
40000						38.5	179	0.58
50000						45.5	213	0.58
63000						54.1	256	0.53

*All parameters are for reference only; The final data will be customized according to the order.

110kV, Series11, On-load, Liquid-immersed Power Transformer

Rated Power (kVA)	Voltage and Combination			Vector Group	No-load loss (W)	Load loss (75℃) (W)	No-load Current (%)	Impedance at principal tapping (%)
	H. V.(kV)	Tapping	L. V.(kV)
6300	110	±8×1.25	6.3 6.6 10.5 21	YNd11	8	35	0.64	10.5
8000					9.6	42	0.64
10000					11.3	50	0.59
12500					13.4	59	0.59
16000					16.1	73	0.55
20000					19.2	88	0.55
25000					22.7	104	0.51
31500					27	123	0.51
40000					32.3	156	0.46	12~18
50000					38.2	194	0.46
63000					45.4	232	0.42

*All parameters are for reference only; The final data will be customized according to the order.

110kV, Off-load, LV 35kV, Liquid-immersed Power Transformer

Rated Capacity (kVA)		Level 1 (S22)				Level 2 (S20)				Level 3 (S13)				Short-circuit impedance%
No-load Loss (kW)		Load Loss (75℃) (kW)		No-load Loss (kW)		Load Loss (75℃) (kW)		No-load loss (kW)		Load loss (75℃) (kW)
6300		4.4		33		5.2		33		6.4		35		10.5
8000		5.3		40		6.2		40		7.7		42
10000		6.2		47		7.3		47		9.0		49
12500		7.2		56		8.5		56		10.5		59
16000		8.6		68		10.1		68		12.5		72
20000		10.2		85		12.0		85		14.8		89
25000		12.1		99		14.2		99		17.5		105
31500		14.3		120		16.8		120		20.7		126
40000		16.9		140		20.0		140		24.6		147
50000		20.3		174		24.0		174		29.5		183

*All parameters are for reference only; The final data will be customized according to the order.