China SZ□-35KV Oil-Immersed Transformer. Manufacture and Factory

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SZ□-35KV Oil-Immersed Transformer.

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SZ□-35KV Oil-Immersed Transformer.

1. Overload protection
2. Short circuit protection
3. Controlling
4. Used in residential building, non-residential building, energy source industry and infrastructure.
5. According to the type of instantaneous release classified as follows : type B(3-5)ln, type C(5-10)ln, type D(10-20)ln

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Product Details

SZ□-35KV Series On-load Voltage Regulating Transformer

This kind of product is applied to power system of three-phase, 50Hz as well as 35kV and below,is the main transformer equipment of medium and small-sized transformer substation, supplies power distribution, power and illumination for the industry and agriculture.

The company introduces in domestic and overseas advanced technique, adopts the latest material and optimizes design, which enables the product structure more reasonable, and greatly improves the product electric strength, mechanical strength and heat- sinking capability.

Standard

Operating conditions

1. Altitude: ≤1000m.

2. Ambient temperature: the highest temperature +40℃, the highest monthly average temperature +30℃; The highest yearly average temperature +20℃ .

3. Installation environment: inclination of installation place＜3°, no obvious dirt and corrosive or flammable gas.

Features

1. Iron core:

The iron core is made of high-quality cold-rolled silicon steel sheet, and adopts various forms such as fully biased multi-stage j oints, without punch holes,wind cores, etc., and clamp them with stainless steel stays and epoxy glass tapes.

2. Coil:

The conductor is made of high-quality oxygen-free copper enameled wire or paper-wrapped flat copper wire, and the coil is made

of drum type, spiral type, improved spiral type, continuous type, staggered type and other types.

3. Oil tank:

The oil tank is barrel type or shielded type, and the heat dissipation element adopts corrugated plate or electroplating radiator.The transformer is not equipped with a trolley, but a base that conforms to the national standard gauge is welded on the bottom of the box for your convenience.

4. Safety protection device:

According to national standards and user requirements, the transformer can be equipped with the following safety protection devices:pressure relief valve, gas relay, signal thermometer, oil filter, oil conservator, oil sample valve, etc.

SZ9-35KV technical data

Rated capacity (kVA)	Voltage combination			Connection symbol	No-load loss(W)	Load loss(W)	No-load current (%)	Short circuit impedance (%)
Rated capacity (kVA)	(kV)H.V	Tapping range of high voltage	L.V (kV)	Connection symbol	No-load loss(W)	Load loss(W)	No-load current (%)	Short circuit impedance (%)
2000	35	±3×2.5	6.3 10.5	Yd11	2900	20200	0.9	6.5
2500	35				3400	22700	0.9	6.5
3150	35~38.5				4100	26000	0.8	7
4000					4900	30700	0.8
5000					5800	36000	0.75
6300					7000	38700	0.75	8
8000			6.3 6.6 10.5	Ynd11	9900	43000	0.7
10000					11600	50600	0.7
12500					13800	59900	0.7
16000					16200	73000	0.7
20000					19500	84600	0.7
25000					22500	100200	0.7	10
31500					26400	124000	0.6	10

SZ11-35KV technical data

Rated capacity (kVA)	Voltage combination			Connection symbol	No-load loss(W)	Load loss(W)	No-load current (%)	Short circuit impedance (%)
Rated capacity (kVA)	(kV)H.V	Tapping range of high voltage	L.V (kV)	Connection symbol	No-load loss(W)	Load loss(W)	No-load current (%)	Short circuit impedance (%)
2000	35	±3×2.5	6.3 10.5	Yd11	2300	19240	0.8	6.5
2500	35				2720	20640	0.8	6.5
3150	35~38.5				3230	24710	0.72	7
4000					3870	29160	0.72
5000					4640	31200	0.68
6300			6.3 6.6 10.5	Ynd11	5630	36770	0.68	7.5
8000					7870	40610	0.6
10000					9280	48050	0.6
12500					10940	56860	0.56	8
16000					13170	70320	0.54
20000					15570	82780	0.54

SZ13-35KV technical data

Rated capacity (kVA)	Voltage combination			Connected group label	No-load loss(W)	Load loss(W)	No-load current (%)	Short circuit impedance (%)
Rated capacity (kVA)	High voltage(kv)	Tapping range	Low voltage	Connected group label	No-load loss(W)	Load loss(W)	No-load current (%)	Short circuit impedance (%)
2000	35	±3×2.5	6.3 10.5	Yd11	2300	19200	0.5	6.5
2500	35				2720	20600	0.5	6.5
3150	35~38.5				3230	24700	0.5	7
4000					3870	29100	0.5
5000					4640	34200	0.5
6300					5630	36700	0.5	8
8000			6.3 6.6 10.5	Ynd11	7870	40600	0.4
10000					9280	48000	0.4
12500					1090	56800	0.35
16000					1310	70300	0.35
20000					1550	82100	0.35
25000					1830	97800	0.3	10
31500					2180	716000	0.3	10