35kV Three-Phase Two-Winding Oil-Immersed Distribution Transformer OCTC Series

The Liyond 35kV three-phase two-winding transformer OCTC series include 50-1600/35 three-phase two-winding distribution transformer, rated capacity from 50 to 1600kVA, and 630-2500/35 three-phase two-winding distribution transformer, rated capacity from 630 to 2500kVA.

The 35kV three-phase oil immersed transformer series is an energy-saving solution, featuring low loss, low noise, high lightning withstand capability, and excellent short-circuit mechanical strength. This three-phase two-winding transformer series also features four remote functions-remote signaling, remote measurement, remote regulation, and remote control. This transformer series is trusted and widely specified for modern urban-rural power grid modernizations, heavy industrial facilities, and regional transmission and distribution projects.

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35kV Three-Phase Two-Winding Oil-Immersed Distribution Transformer OCTC Series

Electrical Products

50-1600/35 Specifications
630-2500/35 Specifications

50-1600/35 Three-Phase Two-Winding Oil-Immersed Distribution Transformer Technical Parameters

Rated capacity (kVA)	Voltage ratio (kV)		Connection Symbol	Loss values for S9 serial transformer		Loss values for S10 serial transformer		Loss values for S11 serial transformer		No-load current (%)	Impedance (%)	Weight			Outline dimension (mm)			Gauge (mm)
Rated capacity (kVA)	HV	LV	Connection Symbol	No-load loss	Full-load loss	No-load loss	Full-load loss	No-load loss	Full-load loss	No-load current (%)	Impedance (%)	Oil weight	Untanking weight	Total weight (kg)	L	W	H	Gauge (mm)
50	35 38.5 ±5% 或 ±2×2.5%	0.4	Yyn0 Dyn11	0.21	1.21	0.19	1.15	0.17	1.15	2	0.19 0.26 0.31 0.32 0.39 0.46 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

630-2500/35 Three-Phase Two-Winding Oil-Immersed Distribution Transformer Technical Parameters

Rated capacity (kVA)	Voltage ratio (kV)		Connection Symbol	Loss values for S9 serial transformer		Loss values for S10 serial transformer		Loss values for S11 serial transformer		No-load current (%)	Impedance (%)	Weight			Outline dimension (mm)			Gauge (mm)
Rated capacity (kVA)	HV	LV	Connection Symbol	No-load loss	Full-load loss	No-load loss	Full-load loss	No-load loss	Full-load loss	No-load current (%)	Impedance (%)	Oil weight	Untanking weight	Total weight (kg)	L	W	H	Gauge (mm)
630	35 38.5 ±5% 或 ±2×2.5%	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

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