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220kV Oil Immersed Type Power Transformer

General
The 220kV transformer adopted the full folding plate tank structure of 110kVtransformer, making its structure more rational, easier for site installation and inspection; combining our many-year design and manufacture experiences, there liability and performance of the product have reached international advanced level.

product details

General

Through continuous improvement and alteration, our products are with characteristics of low loss, low noise, low partial discharge, high short circuit withstand capacity, high impedance, and fully-enclosed structure. The series covers two-winding and three-Winding off-circuit tap changing power transformer, on-load tap changing transformer and tap-changing auto transformer.

Standard

IEC60076 (1-5) Power transformers

IEC60296 Specification for mineral insulating oil for transformers and switchgear

IEC60354 Loading guide for oil immersed transformer

IEC60317: Insulated Bushings

ANSI, IEEE, AS, GB etc.

Technical parameter

The energy efficiency level of 220 kV oil-immersed three-phase double-winding no-load tap-changing power transformer

Rated capacity kVA	Level Ⅰ		Level Ⅱ		Level Ⅲ		short circuit impedance %
Rated capacity kVA	No-Load Loss kW	Load Loss (75℃) kW	No-Load Loss kW	Load Loss (75℃) kW	No-Load Loss kW	Load Loss (75℃) kW	short circuit impedance %
31500	15	115	18	115	22	122	12~14
40000	18	134	21	134	26	142
50000	21	161	25	161	31	170
63000	25	188	30	188	37	199
75000	29	213	34	213	42	225
90000	34	246	40	246	49	259
120000	41	304	49	304	60	321
150000	49	360	58	360	71	380
160000	51	378	60	378	74	399
180000	56	413	66	413	82	436
240000	70	484	83	484	102	511
300000	83	577	98	577	121	609
360000	95	662	112	662	138	698
370000	97	675	114	675	141	713
400000	103	716	122	716	150	755
420000	106	742	125	742	154	783

The energy efficiency level of 220 kV oil-immersed three-phase three-winding no-load tap-changing power transformer

Rated capacity kVA	Level Ⅰ		Level Ⅱ		Level Ⅲ		short circuit impedance %
Rated capacity kVA	No-Load Loss kW	Load Loss (75℃) kW	No-Load Loss kW	Load Loss (75℃) kW	No-Load Loss kW	Load Loss (75℃) kW	Set up voltage	Set down voltage
31500	18	138	21	138	26	145	H-M:22~24 H-L:12~14 M-L:7~9	H-M:12~14 H-L:22~24 M-L:7~9
40000	21	165	25	165	30	174
50000	24	194	29	194	35	205
63000	29	231	34	231	42	244
90000	37	300	44	300	54	316
120000	46	369	55	369	67	390
150000	55	438	65	438	80	463
180000	62	500	73	500	90	527
240000	72	616	91	616	112	650
300000	91	726	108	726	133	767

The energy efficiency level of 220 kV oil-immersed three-phase double-winding LV-66kV no-load tap-changing power transformer

Rated capacity kVA	Level Ⅰ		Level Ⅱ		Level Ⅲ		short circuit impedance %
Rated capacity kVA	No-Load Loss kW	Load Loss (75℃) kW	No-Load Loss kW	Load Loss (75℃) kW	No-Load Loss kW	Load Loss (75℃) kW	short circuit impedance %
31500	17	129	20	129	24	136	12~14
40000	20	150	23	150	29	159
50000	23	180	27	180	34	190
63000	28	211	33	211	40	222
90000	36	275	43	275	53	291
120000	45	330	53	330	65	349
150000	53	387	63	387	78	409
180000	61	438	72	438	88	463
240000	75	543	88	543	109	573

The energy efficiency level of 220 kV oil-immersed three-phase double-winding OLTC power transformer

Rated capacity kVA		Level Ⅰ		Level Ⅱ		Level Ⅲ		short circuit impedance %
Rated capacity kVA		No-Load Loss kW	Load Loss (75℃) kW	No-Load Loss kW	Load Loss (75℃) kW	No-Load Loss kW	Load Loss (75℃) kW	short circuit impedance %
31500		17	115	20	115	24	122	12~14
40000		20	134	23	134	29	142
50000		24	161	28	161	34	170
63000		28	188	33	188	40	199
90000		35	246	42	246	51	259
120000		43	304	51	304	63	321
150000		51	360	60	360	74	380
180000		59	413	70	413	86	436
120000	LV 66kV 69kV	45	303	53	303	65	320
150000		53	355	62	355	77	374
180000		62	406	73	406	90	428
240000		77	504	91	504	112	532

The energy efficiency level of 220 kV oil-immersed three-phase three-winding OLTC power transformer

Rated capacity kVA	Level Ⅰ		Level Ⅱ		Level Ⅲ		short circuit impedance %
Rated capacity kVA	No-Load Loss kW	Load Loss (75℃) kW	No-Load Loss kW	Load Loss (75℃) kW	No-Load Loss kW	Load Loss (75℃) kW	short circuit impedance %
31500	19	138	23	138	28	145	H-M:12~14 H-L:22~24 M-L:7~9
40000	23	165	27	165	33	174
50000	26	194	31	194	38	205
63000	31	231	36	231	45	244
90000	40	300	47	300	58	316
120000	51	369	60	369	74	390
150000	59	438	70	438	86	463
180000	68	538	81	538	99	568
240000	85	667	100	667	123	704

The energy efficiency level of 220 kV oil-immersed three-phase three-winding OLTC autotransformer power transformer

Rated capacity kVA	Level Ⅰ		Level Ⅱ		Level Ⅲ		short circuit impedance %
Rated capacity kVA	No-Load Loss kW	Load Loss (75℃) kW	No-Load Loss kW	Load Loss (75℃) kW	No-Load Loss kW	Load Loss (75℃) kW	short circuit impedance %
31500	11	92	13	92	16	97	H-M:8~11 H-L:28~34 M-L:18~24
40000	13	113	16	113	19	119
50000	15	134	18	134	22	142
63000	18	161	21	161	26	170
90000	22	211	26	211	32	222
120000	28	263	33	263	41	277
150000	33	311	39	311	48	329
180000	37	358	44	358	54	378
240000	46	462	54	462	66	487