S11 Oil Immersed Power Transformer/Distribution Transformer

Apr 11, 2024

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The company manufactures production of S11 - M series the whole sealing oil-immersed power transformer has the advantages of low loss, low noise, high efficiency, can obtain good energy saving effect and reduce pollution. Totally enclosed comparing with ordinary oil-immersed transformer, cancel the oil storage tank, the oil volume changed by corrugated tank elastic corrugated chips to automatically adjusting, transformer is isolated from the rest of the air, to prevent and slow the deterioration of oil and insulation aging, enhance the operation reliability.

Conditions of use

1. The highest temperature: + 40 ℃

2. The lowest temperature: -25 ℃

3. Altitude: < 4000 m

4. The highest monthly average relative humidity: 80% (20 ℃)

5. Installation location: without fire, explosion danger, serious foul, chemical corrosion, or violent vibration. Indoor And outdoor.

oil immersed transformer

Product Standards

GB 1094 Power Transformer

GB/T 15164 Oil-immersed power transformer load guide

GB/T 6451 Three-phase oil-immersed power transformer technical parameters and requirements

IEC/60076

S11 type 6-11kV series main performance parameters of the products

Type	Rated capacity (KVA)	Connection symbol	Voltage combination (KV)			No-load losses(W)	Load losses(W)	No- load current (%)	Short-circuit impedance (%)
Type	Rated capacity (KVA)	Connection symbol	H.V	Tapping range	L.V	No-load losses(W)	Load losses(W)	No- load current (%)	Short-circuit impedance (%)
S11	30	Yyn0 or Dyn11	6 6.3 10 10.5 11	±5% or ±2×2.5%	0.4	100	600	2.3	4.0
S11	50					130	870	2.0
S11	63					150	1040	1.9
S11	80					180	1250	1.9
S11	100					200	1500	1.8
S11	125					240	1800	1.7
S11	160					280	2200	1.6
S11	200					340	2600	1.5
S11	250					400	3050	1.4
S11	315					480	3650	1.4
S11	400					570	4300	1.3
S11	500					680	5100	1.2
S11	630					810	6200	1.1	4.5
S11	800					980	7500	1.0
S11	1000					1150	10300	1.0
S11	1250					1360	12800	0.9
S11	1600					1640	14500	0.8
S11	2000					2280	17820	0.6	5.0
S11	2500					2700	20700	0.6	5.0

S11 type 15-22 kv series main performance parameters of the products

Type	Rated capacity (KVA)	Connection symbol	Voltage combination(KV)			No-load losses(W)	Load losses(W)	No- load current(%)	Short-circuit impedance (%)
Type	Rated capacity (KVA)	Connection symbol	H.V	Tapping range	L.V	No-load losses(W)	Load losses(W)	No- load current(%)	Short-circuit impedance (%)
S11	30	Dyn11	15 20 22	±5% or ±2×2.5%	0.4	90	660	2.1	5.5
S11	50					130	960	2
S11	63					150	1145	1.9
S11	80					180	1370	1.8
S11	100					200	1650	1.6
S11	125					240	1980	1.5
S11	160					290	2420	1.4
S11	200					330	2860	1.3
S11	250					400	3350	1.2
S11	315					480	4010	1.1
S11	400					570	4730	1
S11	500					680	5660	1
S11	630					810	6820	0.9	6
S11	800					980	8250	1.8
S11	1000					1150	11330	0.7
S11	1250					1350	13200	0.7
S11	1600					1630	15950	0.6

PRODUCT FEATURES

1.Key component-iron core

The company has its own silicon steel sheet cutting line, and the iron core adopts laser-marked high-permeability silicon steel sheet.The non-punched iron core design is combined with the international marching type strapping structure to make the electric field distribution in the iron core joints well-distributed---the no-load loss can be reduced by 4-6% by comparing with similar products in the market.Special processes ensure iron core can be fixed tightly- NO shift in transportation.

2.Key component-coil

Different structures (drum, foil, spiral, continuous) to meet the diverse needs of customers.

The end angle ring effectively improves the coil characteristics under impulse voltage-----voltage well-distributed.

There is an oil guide structure inside the coil to greatly reduce the temperature rise-----eliminate the risk of transformer short circuit.

Separate voltage regulating coil in the larger-capacity products to ensure the ampere-turn distribution in the core is well divided.

3.Key component-oil tank

The oil tank adopts barrel type or bell type - more stable structure.

The heat dissipation element adopts chip radiator-----better heat dissipation.

The wall of the tank is made directly by bending machine - strengthen tank's mechanical strength and effectively improve products appearance;

The edge of tank is sealed with oil-resistant rubber material, and there is sealing strip mark in the tank ----- prevent leakage.

Strict inspection of fluorescent leak test and pressure test-prevent leakage.

Oil immersed distribution transformer

Oil immersed transformer