S13-M Fully Sealed Oil Immersed Power Transformer

ZHENGXI fully sealed oil-immersed power transformer has high efficiency, low loss characteristics, can save a lot of power consumption and operating costs, social benefits are significant, is a national promotion of high-tech products.

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Reliable structure

Our company has made a number of improvements based on the traditional structure and mature technology, including:

Use of spiral coils with longitudinal oil channels for better internal heat dissipation.
Improved the support structure of the coil end face to enhance the resistance to short-circuit current.
New lifting and positioning structures have been adopted to ensure greater reliability during long distance transport and operation.
We have also designed a variety of unique and reliable structures to provide better quality.
Higher performance transformers with a more advanced level of technology have been selected.

High-quality materials

Adopting oxygen-free copper wire with lower resistivity and special surface treatment to ensure smoother and burr-free, which reduces the load loss of the transformer and improves the reliability of electrical performance.
Use of high quality silicon steel sheets to reduce unit loss, thus reducing the transformer’s no-load loss.
Use of high quality laminated wood insulating parts, which do not crack even under the action of short-circuit currents.
Selecting transformer oil that has undergone deep filtration treatment, the level of water, gas and impurity content is lower, making the transformer more reliable in operation.
Adopting high quality rubber sealing material to effectively prevent aging and leakage problems.
All these raw materials undergo strict quality inspection and all suppliers meet the strict examination requirements of the national ISO9000 standard.

Type designation

Model:	S 13 M – □ 10

S	Three phase
13	Loss level code
M	Fully sealed
□	Rated capacity KVA
10	High voltage side voltage level(KV)

S13-M Type 6~10 kV Performance parameters

Rated capacity(KVA)	Voltage Combination and tap range			connection of transformer winding	No-load loss(W)	Load loss (W)	No-load current (%)	Short circuit impedance (%)
	High voltage (KV)	High voltage tap range ( %)	Low voltage (KV)
30 50 63 80 100 125 160 200 250 315 400 500 630 800 1000 1250 160020002500	6 6.3 6.6 10 10.5 11	±5% ±2×2.5%	0.4	Dyn11 Yzn11 Yyn0	80 100 110 130 150 170 200 240 290 340 410 480 570 700 830 970 117015501830	630/600 910/870 1090/1040 1310/1250 1580/1500 1890/1800 2310/2200 2730/2600 3200/3050 3830/3650 4520/4300 5410/5150 6200 7500 10300 12000 145001830021200	1.8 1.6 1.6 1.5 1.4 1.4 1.3 1.2 1.2 1.1 1.1 1.0 0.9 0.8 0.8 0.7 0.60.40.4	4 4 4 4 4 4 4 4 4 4 4 4 4.5 4.5 4.5 4.5 4.55.05.0
				Dyn11 Yyn0

S13-M Type 20 kVPerformance parameters

Rated capacity(KVA)	Voltage Combination and tap range			connection of transformer winding	No-load loss(W)	Load loss (W)	No-load current (%)	Short circuit impedance (%)
	High voltage (KV)	High voltage tap range ( %)	Low voltage (KV)
50 100 125 160 200 250 315 400 500 630 800 1000 1250 160020002500	20 22 24	±5% ±2×2.5%	0.4	Dyn11 Yyn0Yzn11	100 150 170 200 240 290 340 410 480 570 700 830 970 117015501830	1270/1210 2120/2020 2500/2380 2970/2830 3500/3330 4160/3960 5010/4770 6050/5760 7280/6930 8280 9900 12150 14670 175501914022220	2.0 1.80 1.70 1.60 1.50 1.40 1.40 1.30 1.20 1.10 1.00 1.00 0.90 0.800.600.50	5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 6.0 6.0 6.0 6.0 6.06.06.0

S13-M Type 35 kV Performance parameters

Rated capacity(KVA)	Voltage Combination and tap range			connection of transformer winding	No-load loss(W)	Load loss (W)	No-load current (%)	Short circuit impedance (%)
	High voltage (KV)	High voltage tap range ( %)	Low voltage (KV)
50 100 125 160 200 250 315 400 500 630 800 1000 1250 160020002500	35 38.5	±5% ±2×2.5%	0.4	Dyn11 Yyn0	170 230 270 290 340 410 490 580 690 830 980 1150 1410 170015901890	1270/1210 2120/2020 2500/2380 2970/2830 3500/3330 4160/3960 5010/4770 6050/5760 7280/6930 8280 9900 12150 14670 175501970023200	2.0 1.80 1.70 1.60 1.50 1.40 1.40 1.30 1.20 1.10 1.00 1.00 0.90 0.800.750.75	6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.56.56.5