Oil Immersed Transformer (10kV-35kV)

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Oil-immersed transformers are Yawei’s latest low-loss power transformers with copper windings. New materials and processes are applied to the transformer to realize low material loss and improve the transformer performance and structure. The transformer achieves wide application in power grids for industrial and urban and rural purposes and is especially suitable to be used in compact transformers and prefabricated substations.

Features Small size and light weight; Low noise, excellent heat dissipation performance and low temperature rise; Reliable operation and high efficiency; No impact on the environment and no need of maintenance
Technical Parameters

S11 6-11kV Oil Immersed Transformer
Rated Capacity (kVA)	Voltage Combination			Connection Symbol	No-load Loss(kW)	On-load Loss (kW) (75℃)	Short Circuit Impendance (%)	No-load Current (%)	Weight (kg)		Dimensions (mm)
Rated Capacity (kVA)	High Voltage (kV)	Tapping Range (%)	Low Voltage (kV)	Connection Symbol	No-load Loss(kW)	On-load Loss (kW) (75℃)	Short Circuit Impendance (%)	No-load Current (%)	Oil	Total	Length	Width	Height
30	6 6.3 10 10.5 11	±5 ±2x2.5	0.4	Yyn0 Dyn11	90	600	4.0	2.1	60	285	715	595	800
50					120	870		2	65	360	760	810	830
63					140	1040		1.9	100	500	1080	620	1090
80					170	1250		1.8	80	455	975	640	880
100					200	1500		1.6	90	525	970	640	910
125					235	1800		1.5	95	580	1050	700	940
160					280	2200		1.4	110	680	1160	785	960
200					335	2600		1.3	125	765	1125	770	1000
250					390	3050		1.2	140	860	1200	835	1020
315					465	3650		1.1	155	1005	1305	910	1050
400					560	4300		1.0	175	1170	1305	900	1090
500					670	5100		1.0	210	1370	1410	1015	1140
630					840	6200	4.5	0.9	260	1700	1545	1095	1160
800					980	7500		0.8	305	2025	1590	1130	1200
1000					1190	10300		0.7	375	2290	1680	1230	1300
1250					1360	12000		0.6	445	2680	1715	1245	1400
1600					1640	14500		0.6	520	3160	1785	1290	1500
2000					1980	18500	5	0.5	785	4020	1850	1315	1530
2500					2450	23500	5	0.45	925	4810	1945	1370	1610

20kV Oil Immersed Transformer
Rated Capacity (kVA)	Voltage Combination			Connection Symbol	No-load Loss(kW)	On-load Loss (kW) (75℃)	Short Circuit Impendance (%)	No-load Current (%)	Weight (kg)		Dimensions (mm)
Rated Capacity (kVA)	High Voltage (kV)	Tapping Range (%)	Low Voltage (kV)	Connection Symbol	No-load Loss(kW)	On-load Loss (kW) (75℃)	Short Circuit Impendance (%)	No-load Current (%)	Oil	Total	Length	Width	Height
30	6 6.3 10 20 30	±5±2x2.5	0.4	Yyn0 Dyn11	90	600	4.0	2.1	70	300	800	660	940
50					120	870		2	80	400	830	690	990
63					140	1040		1.9	90	450	860	690	1020
80					170	1250		1.8	105	520	900	720	1060
100					200	1500		1.6	115	600	940	740	1080
125					235	1800		1.5	125	700	1220	770	1100
160					280	2200		1.4	140	820	1240	780	1170
200					335	2600		1.3	170	980	1390	800	1200
250					390	3050		1.2	190	1150	1410	820	1230
315					465	3650		1.1	220	1300	1500	860	1270
400					560	4300		1.0	240	1525	1520	870	1320
500					670	5100		1.0	270	1780	1600	890	1410
630					840	6200	4.5	0.9	320	2050	1660	950	1460
800					980	7500		0.8	490	2800	1760	970	1500
1000					1190	10300		0.7	570	3030	1800	1090	1620
1250					1360	12000		0.6	650	3535	1870	1100	1700
1600					1640	14500		0.6	750	4350	1980	1180	1800
2000					1980	18500	5.5	0.5	950	5040	2090	1280	1930

35kV Oil Immersed Transformer
Rated Capacity (kVA)	Voltage Combination			Connection Symbol	No-load Loss (kW)	On-load Loss (kW) (75℃)	Impendance (%)	Weight (kg)		Dimensions (mm)
Rated Capacity (kVA)	High Voltage (kV)	Tapping Range (%)	Low Voltage (kV)	Connection Symbol	No-load Loss (kW)	On-load Loss (kW) (75℃)	Impendance (%)	Oil	Total	Length	Width	Height
50	25 30 33 35	±5 ±2x2.5	0.23 0.38 0.4 0.44 0.48 0.6	Dyn11 Yyn0	0.166	1.285	6.44	165	535	1120	670	1235
80					0.209	1.734	6.66	195	670	1120	700	1270
100					0.244	2.138	6.39	210	745	1120	720	1285
125					0.286	2.552	6.27	215	790	1160	715	1330
160					0.3	3.027	6.40	245	970	1245	785	1365
200					0.361	3.649	6.28	360	1050	1245	795	1380
250					0.424	4.294	6.49	285	1175	1335	880	1395
315					0.51	5.2	6.31	310	1305	1380	920	1420
400					0.613	6.171	6.31	355	1540	1510	1010	1455
500					0.716	7.452	6.51	390	1760	1120	1105	1502
630					0.897	8.65	6.60	430	2000	1120	1210	1527
800					1.042	10.181	6.24	525	2545	2080	1215	1770
1000					1.22	12.375	6.30	600	2885	2125	1270	1850
1250					1.457	15.119	6.40	690	3275	2150	1300	1950
1600					1.796	18.337	6.53	840	3955	2310	1355	2070
2000					2.105	21.122	6.47	1010	4775	2390	1395	2170
2500					2.514	25.296	6.29	1145	5550	2515	1435	2300

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