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S11 Series 10kv Oil-Immersed Distribution Power Transformers


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High efficiency, low loss, low noise; Good internal heat dissipation； strong short circuit resistance; Low empty and load losses; Reliable operation, long life, maintenance-free.

Product Description

Oil Cooled Transformer Features:

The S11 series fully sealed oil-immersed power transformer developed and produced by the company has the advantages of low loss, low noise and high efficiency, which can achieve good energy-saving effects and reduce pollution.

Compared with ordinary oil-immersed transformers, fully sealed transformers eliminate the oil conservator. The change of oil volume is automatically adjusted and compensated by the elasticity of the corrugated sheet of the corrugated oil tank. The transformer is isolated from the air to prevent and slow down the deterioration of oil and insulation aging so as to enhance operational reliability, and maintain normal operation without maintenance.

Model meaning:

S11-M

Product Standards：

GB1094.1-2-2013 GB/T 6451-2015
Rated high voltage: 10 (10.5, 11, 6, 6.3, 6.6) kV
Rated low voltage: 0.4kV
Tap range: non-excitation voltage regulation (±5%, ±2×2.5%)
On-load voltage regulation: (±4×2.5%)
Connection group: Dyn11 or Yyn0
Insulation level: LI75AC35/AC5

Technical parameters

Rated capacity (kVA)	Voltage combination			Connection group label	Loss (kW)		No-load current (%)	Short circuit resistance (%)	Weight(kg)			External dimensions (L)x(W)x(H)		Gauge (mm)
Rated capacity (kVA)	High tension (kV)	Tapoff （%）	Low pressure (kV)	Connection group label	No-load loss (W)	Load loss	No-load current (%)	Short circuit resistance (%)	Body weight	Oil weight	Total weight	Fully sealed	Not fully sealed	Gauge (mm)
30	6 6.3 10 10.5 11	±5 ±2X2.5	4	Dyn1 Yzn11 YynO	0.10	0.63/0.60	2.3	4.0	150	750	340	730×780 x 930	950×720×1000	400/400
50					0.13	0.91/0.87	2.0		220	950	440	800x 750 ×965	1020×700×1035	400/400
63					0.15	1.09/1.04	1.9		260	110	490	820×780×970	1140×740×1040	400/400
80					0.18	1.31/1.25	1.9		300	120	580	840×800×1000	1060×720×1070	400/400
100					0.20	1.58/1.5	1.8		350	120	660	850×840×1010	1105×760×1110	450/400
125					0.24	1.89/1.80	1.7		400	130	700	860×900×1080	1120×800×1150	550/550
160					0.28	2.31/2.20	1.6		480	160	840	1220×840×1100	1440×760×1290	550/550
200					0.34	2.73/2.60	1.5		560	170	920	1250×860×1150	1470×780×1350	550/550
250					0.40	3.20/3.05	1.4		640	180	1040	1260×850×1220	1480×780×1420	550/550
315					0.48	3.83/365	1.4		800	200	1220	1340x 900×1200	1560×840×1400	550/550
400					0.57	4.52/4.30	1.3		980	240	1460	1380×900×1260	1600×840×1520	550/550
500					0.68	5.41/5.15	1.2		1130	280	1710	1520×1000×1330	1740×960×1590	660/660
630				Dyn11 Yyn0	0.81	6.20	1.1	4.5	1350	330	2050	1580×1040×1270	1900×1040×1600	660/660
800					0.98	7.50	1.0		1610	400	2460	1650×1160×1400	1970×1160×1730	820/820
1000					1.15	10.30	1.0		1690	450	3680	1750×1240×1460	2070×1240×1970	820/820
1250					1.36	12.00	0.9		1910	500	3050	1800×1240×1550	2100×1240×1870	820/820
1600					1.64	14.50	0.8		2330	590	3800	1830×1800×1930	1830×1800×1930	820/820
2000					1.96	17.80	0.6		2750	780	4660	1950×1900×2080	1950×1900×2080	820/820
2500					2.31	20.70	0.5		3350	920	5440	2060×1930×2130	2160×1930×2130	1070/1070

Note 1: The load loss value above the diagonal line in the table applies to the Dyn11 or Yzn11 connection group, and the load loss value below the diagonal line applies to the Yyn0 connection group.