Jsm S9-20kVA/11kv Oil Immersion Transformer Distribution Transformer

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Jsm S9-20kVA/11kv Oil Immersion Transformer Distribution Transformer

Customization:	Available
Phase:	Three
Core:	Core-type Transformer

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Product Description

Basic Information

Model NO.

S9-20KVA/11KV

Cooling Method

Oil-immersed Type Transformer

Certification

ISO9001-2000

Frequency Characteristics

Low Frequency

Connection Group

Yyn0, Dyn11, Dyn5 or Others

Standards

GB1094-1996; Jb/T10088-2004; GB/T6451-2008; Eqv I

Short Circuit Impedance

Standard Impedance

Tapping Range

± 2*2.5%

Voltage Grade

6kv, 10kv, 11kv, 13.8kv, 15kv

Voltage Regulation

Off Circuit or On Load Tap Changing

Frequency

50Hz; 60Hz

Type

Transformer

HS Code

8504210000

Production Capacity

50000

Product Description

✔ 22 years' manufacturing experience

✔ Top 3 in China

✔ Guarantee 30 years

✔ Won tenders abroad

Features & Advantages

The new type of S9, S9-M series three-phased oil-immersed distribution transformer utilizes advanced structures for insulation and anti-shortcut performance, approaching international standards. Compared to the S7 series, the no-load loss decreases by 10.25% on average, no-load current decreases by 37.9%, and load loss decreases by 22.4%. It is a premier product for energy saving.

Main Characteristics

1. High short-circuit resisting ability and fine mechanical performance.

2. Low power consumption, low partial-discharge, and low noise levels.

3. No leakage, maintenance-free, and no need for core lifting.

Technical Excellence

1. Scientific Computing: Advanced software for electromagnetic heat and mechanical power is used to calculate field distribution and magnetic leakage, ensuring reliable performance through 3D dynamic model simulation.

2. Rational Structure: Multistage step lapped joint fully-oblique structures reduce noise and power consumption. Round bar and cardboard sleeves increase short-circuit resistance.

3. Advanced Processing: Automatic iron core cutting ensures high precision. Numerical control tension devices and full automatic control gas-kerosene drying processes are applied.

4. Quality Assurance: Strict quality control according to ISO19001 standards and systematic ERP & PDM data management throughout the process.

Technical Data (10kV S9, S9-M Series)

Rated Capacity (kVA)	Voltage Group (kV)		Loss (kW) No-load	Loss (kW) Load	No-load current %	Impedance Voltage %	Weight (kg)			Dimension (mm)
Rated Capacity (kVA)	HV	LV	Loss (kW) No-load	Loss (kW) Load	No-load current %	Impedance Voltage %	Machine	Oil	Gross	L	W	H
20	11/10.5/10	0.4	0.11	0.52	3	4	110	60	235	660	505	850
50	11/10.5/10	0.4	0.17	0.91	2	4	195	80	365	740	600	930
100	11/10.5/10	0.4	0.29	1.58	1.8	4	300	95	510	820	710	970
200	11/10.5/10	0.4	0.48	2.73	1.5	4	490	150	810	1160	760	1090
500	11/10.5/10	0.4	0.96	5.41	1.2	4	935	235	1505	1515	970	1280
1000	11/10.5/10	0.4	1.7	10.3	1	4.5	1455	475	2555	1855	1255	1490
2500	11/10.5/10	0.4	3.3	23	0.7	4.5	2920	830	5100	2250	1800	2100

Product Gallery

Frequently Asked Questions

What are the energy-saving benefits of the S9 series?

The S9 series reduces no-load loss by 10.25% and load loss by 22.4% on average compared to older S7 models, making it highly energy-efficient.

Does the transformer require frequent maintenance?

No, these oil-immersed transformers are designed to be maintenance-free with no leakage and no need for core or winding body lifting.

What quality standards do your transformers follow?

Our products are manufactured according to ISO9001-2000 quality standards and comply with GB1094 and GB/T6451 international equivalents.

What is the expected lifespan of the S9-M series?

We provide a guarantee of 30 years for our transformers, reflecting their high mechanical performance and durability.

How is the noise level controlled in these units?

By adopting a multistage step lapped joint fully-oblique structure and advanced electromagnetic field simulation, we significantly reduce operating noise.

Can these transformers handle short circuits effectively?

Yes, they are built with high short-circuit resisting ability using round bar and cardboard sleeve structures for enhanced mechanical strength.