35KV Oil Immersed Transformer

Type Meaning

华通型号说明.png

Main technical parameters

50-1600KVA

Rated capacity (kVA)	Voltage ratio (kV)		Commichion Smbol	Loss values for S9 series transformer (kW)		Loss values for S10 series transtormer (kW)		loss values for S11 series transfomer (kW)		No-load current (%)	Impedance (%)	Weight			Outline Dimension(mm)			Gauge (mm)
Rated capacity (kVA)	HV	LV	Commichion Smbol	No-load Loss(kW)	load Loss(kW)	No-loadLoss(kW)	load Loss(kW)	No-load Loss(kW)	load Loss(kW)	No-load current (%)	Impedance (%)	Oil weight	Untankingweight	Total weight	L	W	H	Gauge (mm)
50	35 38.5 ±5% 或 ±2x 2.5%	0.4	Yyn0 Dyn11	0.21	1.21	0.19	1.15	0.17	1.15	2	6.5	275		740	1100	1000	1700	660
100				0.29	2.02	0.26	1.92	0.23	1.92	1.8		350		995	1100	1150	1750	660
125				0.34	2.38	0.31	2.26	0.27	2.26	1.7		430		1250	1100	1150	1800	660
160				0.36	2.83	0.32	2.69	0.29	2.69	1.6		450		1405	1160	1150	1860	660
200				0.43	3.33	0.39	3.16	0.34	3.16	1.5		495		1460	1230	1300	1950	660
250				0.51	3.96	0.46	3.76	0.41	3.76	1.4		520		1625	1250	1300	2000	660
315				0.61	4.77	0.55	4.53	0.49	4.53	1.4		590		1915	1400	1320	2070	820
400				0.73	5.76	0.66	5.47	0.58	5.47	1.3		680		2175	1510	1350	2150	820
500				0.86	6.93	0.77	6.58	0.69	6.58	1.2		760		2485	1620	1370	2240	820
630				1.04	8.28	0.94	7.87	0.83	7.87	1.1		830		2950	1750	1390	2330	820
800				1.23	9.9	1.11	9.41	0.98	9.41	1		880		3370	1900	1420	2400	820
1000				1.44	12.15	1.3	11.54	1.15	11.54	1		1005		4140	2165	1450	2485	820
1250				1.76	14.67	1.58	13.94	1.41	13.94	0.9		1160		4700	2230	1500	2600	1070
1600				2.12	17.55	1.91	16.67	1.7	16.67	0.8		1250		5570	2250	1650	2650	1070

630-2500KVA

Rated capacity (kVA)	Voltage ratio (kV)		Commichion Smbol	Loss values for S9 series transformer (kW)		Loss values for S10 series transtormer (kW)		loss values for S11 series transfomer (kW)		No-load current (%)	Impedance (%)	Weight			Outline Dimension(mm)			Gauge (mm)
Rated capacity (kVA)	HV	LV	Commichion Smbol	No-load Loss(kW)	load Loss(kW)	No-loadLoss(kW)	load Loss(kW)	No-load Loss(kW)	load Loss(kW)	No-load current (%)	Impedance (%)	Oil weight	Untankingweight	Total weight	L	W	H	Gauge (mm)
630	35 38.5 ±5% 或 ±2x 2.5%	6.3 6.6 10 10.5 11	Yd11	1.04	8.28	0.94	7.87	0.83	7.87	1.1	6.5	0.65		2.9	2100	1300	2300	820
800				1.23	9.9	1.11	9.4	0.98	9.4	1		0.7		3.2	2200	1350	2350	820
1000				1.44	12.15	1.3	11.54	1.15	11.54	1		0.85		3.5	2350	1450	2400	820
1250				1.76	14.67	1.58	13.94	1.41	13.94	0.9		1.01		3.84	2500	1600	2450	1070
1600				2.12	17.55	1.91	16.67	1.7	16.67	0.8		1.2		5	2600	1700	2500	1070
2000				2.72	19.35	2.45	18.38	2.18	18.38	0.7		1.28		6	2730	1800	2600	1070
2500				3.2	20.7	2.88	19.67	2.56	19.67	0.6		1.4		7	2870	1900	2700	1070

630-31500KVA

Rated Power (kVA)	Voltage combination and tapping range			Connection symbol	No-load Loss (kW)	load Loss (kW)	No-load Current (%)	Short- circuit Impedance (%)
Rated Power (kVA)	HV (kV)	Tapping Range of HV (%)	LV (kV)	Connection symbol	No-load Loss (kW)	load Loss (kW)	No-load Current (%)	Short- circuit Impedance (%)
630	35	±2×2.5 ±5	3.15 6.3 10.5	Yd11	0.830	7.86	0.65	6.5
800					0.980	9.40	0.65
1000					1.15	11.5	0.65
1250					1.40	13.9	0.55
1600					1.69	16.6	0.45
2000					2.17	18.3	0.45
2500					2.56	19.6	0.45
3150	35 38.5	±2×2.5 ±5	3.15 6.3 10.5		3.04	23.0	0.45	7.0
4000					3.61	27.3	0.45
5000					4.32	31.3	0.45
6300					5.24	35.0	0.45	8.0
8000	35 38.5	±2×2.5	3.15 6.3 10.5	YNd11	7.20	38.4	0.35
10000					8.70	45.3	0.35
12500					10.0	53.8	0.30
16000					12.1	65.8	0.30
20000					14.4	79.5	0.30
25000					17.0	94.0	0.25	10.0
31500					20.2	112	0.25	10.0

Sample data is for reference only. The company reserves the right to change the data, and to accept special orders.

ZM on-load tap-changer

1、rated voltage:35-220kV

2、rated frequency:50/60Hz

3、The maximum rated three-phase current capacity is from 300A to 2000A.

Technical Parameters

Item	Specification			Ⅲ300	Ⅲ500		Ⅲ600	I301		I501	I601		I800	I1200		I1500
1	Max.rated through current(A)			300	500		600	300		500	600		800	1200		1500
2	Rated frequency(Hz)			50 or 60
3	Phase & connect model			Three phase for Neutral point of Y connection				Single phase for selectable winding connection
4	Max. rated step voltage(V)			3300
5	Rated step current(kVA)			1000	1400		1500	1000		1400	1500		2640	3100		3500
6	Short circuit current (kA)		Termal(3s)	6	8		8	6		8	8		16	24		24
			Dynamic(peak)	15	20		20	15		20	20		40	60		60
7	Number of operating position			Linear regulation: 7、10、12、14、16、18、22、34 Reversing and coase and fine regulation: ±3～±17
8	Insulation level of tap changer (kV)	Rated Voltage		35		66			110			150			220
		Max.working voltage		40.5		72.5			126			170			252
		Power frequency withstand voltage(50Hz,1min)		85		140			230			325			460
		Rated lightning impulse withstand voltage(1.2/50μs)		200		350			550			750			1050
9	Tap selector			4 grades of A, B, C and D according to the insulation level
10	Mechanical service life			Not less than 800,000
11	Electrical service life			Not less than 200,000
12	Oil compartment for diverter switch	Service pressure		3×104Pa
		Leakage test		No leakage under 6×104Pa 24 hours
		Over pressure protection		Blasting cap blast at (4～5)×105Pa
		Protective relay		QJ4-25 oil flow speed set at 1.0m/s±10%
13	Oil drainage volume (L)			About 190～270
14	Oil filling volume (L)			About 125～190
15	Weight (kg)			About 240～350
16	Motor-driven unit			MAE/MA7B

basic wiring

华通尺寸图.png

Voltage gradiant of every part of regulating coil

External dimension diagram of ZM

Note:

1.Step capacity = step voltage x load cuttent; Rated step capacity is the continuous permissible max.step capacity.

2.For single-phase tap changer formed by parallel of three-phase tap changer contacts; it is necaessary to take coil shounting of transformer into consideration. For ZMI800, there are two shunts. For ZMI1200 and I1500, there are three shunts.

3.The tap-changer of single phase liner regulating with 34 operating positions only have: I500A, I 800A, I1500A.

35KV Oil Immersed Transformer

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