Three Phase Oil-Immersed Distribution Transformer 630kVA, 1000kVA, 1500kVA, 1600kVA

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Three Phase Oil-Immersed Distribution Transformer 630kVA, 1000kVA, 1500kVA, 1600kVA

Customization:	Available
Application:	Power, Electronic, Instrument, Lighting, Rectifier, Audio, Power Distribution System
Phase:	Three

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Product Description

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Basic Information

Model NO.

S11 S13 S20 S22

Core

Core-type Transformer

Cooling Method

Oil-immersed Type

Winding Type

Two-winding Transformer

Certification

ISO9001-2000, ISO9001

Usage

Power/Distribution Transformer

Frequency

50Hz Power Frequency

Shape of Core

Ring

Warranty

2 Years

Output Voltage

Up to 440V

Material

Aluminum or Copper

Rated Voltage

10kv 11kv 20kv 33kv 35kv

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Product Advantages

Core Technology: The transformer core is made from imported high-quality cold-rolled silicon steel sheets, which significantly reduce no-load losses and no-load current. Additionally, the core is strapped to ensure its tightness and to reduce noise.

Winding Structure: High and low-voltage windings are made of oxygen-free copper. For low-voltage windings up to 500 kVA, a double-layer cylindrical structure is used. For 630 kVA and above, a double-helix or quadruple-helix structure is employed.

Grid Efficiency: Uses a Dyn11 connection group to reduce harmonic effects on the power grid and improve power quality. Fully-sealed structure extends service life and eliminates maintenance requirements.

The tables below indicate the guaranteed rated figures as per IEC60076 standards. Figures remain valid for a single secondary voltage even if multiple primary voltages exist.

Highest voltage for material: ≤ 12 kV

Rated capacity (kVA)	H.V. (kV)	Vector group	Loss (kW)		No-load current (%)	Impedance voltage (%)	Weight (kg)
Rated capacity (kVA)	H.V. (kV)	Vector group	Load loss	No-load loss	No-load current (%)	Impedance voltage (%)	Oil	Total
50	10/11	Dyn11	0.91	0.17	2.0	4	80	330
100	10/11	Dyn11	1.58	0.29	1.8	4	115	490
250	10/11	Dyn11	3.20	0.56	1.4	4	200	940
630	10/11	Dyn11	6.20	1.20	1.1	4.5	345	1720
1000	10/11	Dyn11	10.30	1.70	1.0	4.5	460	2430
1600	10/11	Dyn11	14.50	2.40	0.8	4.5	690	3600

Highest voltage for material: 15-24 kV

Rated capacity(kVA)	H.V. (kV)	Vector group	Load loss (kW)	No-load loss (kW)	Impedance (%)	Total Weight (kg)
100	20	Dyn11	1.50	0.20	4	700
500	20	Dyn11	5.15	0.68	4	1780
1000	20	Dyn11	10.30	1.15	4.5	2800
2500	20	Dyn11	20.26	2.30	4.5	6300

Highest voltage for material: 36 kV

Rated capacity(kVA)	H.V. (kV)	Vector group	Load loss (kW)	No-load loss (kW)	Impedance (%)	Total Weight (kg)
100	33/35	Yyn0	2.12	0.29	6.5	1150
630	33/35	Dyn11	8.28	1.04	6.5	2380
1250	33/35	Dyn11	14.67	1.76	6.5	3890
4000	33/35	Dyn11	28.80	4.52	7	8350

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Manufacturing Showcase

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Frequently Asked Questions

Are you a professional manufacturer?

Yes, we are a professional factory with 10 years of experience in high and low voltage switchgears, substations, transformers, and cable distribution boxes.

Do you offer OEM or customized services?

We offer comprehensive OEM/ODM services. Our technical team can provide projects based on your specific drawings and parameters, including custom logo printing.

What are the standard payment terms?

Typically, we require T/T 30% as a deposit and 70% before delivery. We provide photos of products and packaging before the final balance is paid.

Can transformers be customized for different regional voltages?

Yes, considering differences in voltage, frequency, and other specifications across different countries, our products can be fully customized to meet local requirements.

How is product quality guaranteed and handled?

If any quality issues arise, provide detailed photos for our technical and quality testing departments to analyze. We aim to provide a solution within 1 business day.

What materials are used for the windings?

High and low-voltage windings are primarily constructed using high-quality oxygen-free copper or aluminum, depending on the specific model requirements.