Oil-immersed Transformer

Three dimensional wound core transformer

Brand: HENGFENGYOU
Series: S-MRL
USES: Distribution transformer
Country of origin: China
Terms of payment: L/C, T/T, Western Union, Paypal, Money Gram
Certification: ISO9001、CB、CE、KEMA

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Global Procurement Guide for Three dimensional wound core transformer

I.Three dimensional wound core transformer Induction

- A new type of transformer with more energy saving, compared with S11 with the same capacity transformer, the no-load loss is reduced by more than 25%, and the no-load current is reduced by more than 70%.

- Noise reduction 8dB(A)-- 11dB

- Actual measurement is better than GB and IEC standards, CB CCC KEMA certification

- More than 50 countries and regions around the world run verification of high reliability

- It is mainly used in 10KV 11KV 13.8KV 15KV 20KV 22 KV 30KV 33KV 34.5 35KV power distribution systems of rural and urban power grids.

- Products are mainly sold to East Asia, Central Asia, Southeast Asia, Africa, South America and other markets and regions

- Executive standard: IEC60076-1, IEC60076-2, IEC60076-3, IEC60076-5, IEC60076-7, IEC60076-20, IEC 60836, IEC 60944

- GB/T6451-2015, GB 1094.1, GB 1094.2, GB 1094.3, GB 1094.5, GB/T 1094.7, GB/T 2900.95, JB/T 10088, GB 20052

（Three dimensional wound core transformer）

II.Three dimensional wound core transformer Standar & Certifaication

1. Standards: GB, IEC, GOST, EN, NF, ANSI/IEEE (customizable according to customer standards)

2. Certification: ISO、CE、IEC、SABS、COC、CSA、UL

3. Efficiency: The efficiency of an Three dimensional wound core transformer can exceed 99%, which can meet the European 2015/2014/548/EC ecodesign Tier 2 energy efficiency regulations.

4. Maintenance free: IP65 protection level, dustproof and moisture-proof, maintenance free, designed for a lifespan of over 25 years.

5. Environmental protection and sustainable development: FR3 vegetable oil can be selected.

6. Overload capacity: Copper coil Three dimensional wound core transformer allows short-term overload to 150% of rated capacity for no more than 2 hours, but requires monitoring of oil temperature (≤ 95 ℃).

Three dimensional wound core transformer technical specifications

- Input voltage:6KV 6.6KV 10KV 11KV 13.8KV 15KV 20KV 22 KV 30KV 33KV 34.5 35KV

- Output voltage: 0.4kV 0.415KV

- Capacity: 30 kva-1000 kva

- Frequency: 50HZ/60HZ

- Remark: voltage, capacity, frequency, connection group and loss can be customized according to customer requirements

S11-M•RL series 30 KVA~ 1000KVA Three dimensional wound core oil immersed distribution transformer
Capacity(KVA)	Voltage combination			Vector GroupSymbol	NO-load loss（W）	Load loss（W）	NO-load current（%）	Short circuit impedance（%）
Capacity(KVA)	High pressure（KV）	High pressure tap range（%）	The low pressure（kV）	Vector GroupSymbol	NO-load loss（W）	Load loss（W）	NO-load current（%）	Short circuit impedance（%）
30 kva	6 6.3 10 10.5 11	±5 ±2×2.5	0.4 0.415 0.420 0.44	Dyn11 Yyn0	100	630/600	0.30	4.0
50 kva					130	910/870	0.24
80 kva					180	1310/1250	0.22
100 kva					200	1580/1500	0.21
125 kva					240	1890/1800	0.20
160 kva					280	2310/2200	0.19
200 kva					340	2730/2600	0.18
250 kva					400	3200/3050	0.17
315 kva					480	3830/3650	0.16
400 kva					570	4520/4300	0.16
500 kva					680	5410/5150	0.16
630 kva					810	6200	0.15	4.5
800 kva					980	7500	0.15
1000 kva					1150	10300	0.14

S13-M •RL series 30KVA ~ 1000KVA Three dimensional wound core oil immersed distribution transformer
capacity(kVA)	Voltage combination			Vector GroupSymbol	NO-load loss（W）	Load loss（W）	NO-load current（%）	Short circuit impedance（%）
capacity(kVA)	High pressure（kV）	High pressure tap range（%）	The low pressure（kV）	Vector GroupSymbol	NO-load loss（W）	Load loss（W）	NO-load current（%）	Short circuit impedance（%）
30 kva	6 6.3 6.6 10 10.5 11	±5 ±2×2.5	0.4 0.415 0.420 0.44	Dyn11 Yyn0	80	630/600	0.30	4.0
50 kva					100	900/870	0.24
80 kva					130	1310/1250	0.22
100 kva					150	1580/1500	0.21
125 kva					170	1890/1800	0.20
160 kva					200	2310/2200	0.19
200 kva					240	2730/2600	0.18
250 kva					290	3200/3050	0.17
315 kva					340	3830/3650	0.16
400 kva					410	4520/4300	0.16
500 kva					480	5410/5150	0.16
630 kva					570	6200	0.15	4.5
800 kva					700	7500	0.15
1000 kva					830	10300	0.14

S14-M •RL series 30KVA ~ 1000KVA Three dimensional wound core oil immersed distribution transformer
capacity(kVA)	Voltage combination			Vector GroupSymbol	NO-load loss（W）	Load loss（W）	NO-load current（%）	Short circuit impedance（%）
capacity(kVA)	High pressure（kV）	High pressure tap range（%）	The low pressure（kV）	Vector GroupSymbol	NO-load loss（W）	Load loss（W）	NO-load current（%）	Short circuit impedance（%）
30 kva	6 6.3 6.6 10 10.5 11	±5 ±2.5	0.4 0.415 0.420 0.44	Dyn11 Yyn0	80	505/480	0.30	4.0
50 kva					100	730/695	0.24
80 kva					130	1050/1000	0.22
100 kva					150	1260/1200	0.21
125 kva					170	1510/1440	0.20
160 kva					200	1850/1760	0.19
200 kva					240	2180/2080	0.18
250 kva					290	2560/2440	0.17
315 kva					340	3060/2920	0.16
400 kva					410	3610/3440	0.16
500 kva					480	4330/4120	0.16
630 kva					570	4960	0.15	4.5
800 kva					700	6000	0.15
1000 kva					830	8240	0.14

Three dimensional wound core transformer FAQ

What is a three-dimensional wound core transformer?
A three-dimensional wound core transformer is a type of transformer where the core is constructed by winding grain-oriented silicon steel strips in three spatial dimensions, improving magnetic flux distribution and efficiency.
How does a 3D wound core transformer differ from a traditional transformer?
Unlike traditional laminated core transformers, 3D wound core transformers have a continuous wound structure, reducing air gaps and energy losses while enhancing mechanical strength.
What are the main advantages of 3D wound core transformers?
Key benefits include higher efficiency, lower no-load losses, reduced noise levels, better mechanical stability, and improved thermal performance.
Where are three-dimensional wound core transformers commonly used?
They are widely used in power distribution networks, renewable energy systems, industrial applications, and high-efficiency electrical equipment.
Why do 3D wound core transformers have lower no-load losses?
The continuous winding of the core minimizes magnetic flux leakage and reduces eddy current losses, resulting in lower no-load power consumption.
Are three-dimensional wound core transformers more expensive than conventional transformers?
While the initial cost may be higher, the long-term savings from reduced energy losses and maintenance often justify the investment.
How does the 3D wound core design improve transformer efficiency?
The optimized magnetic path and reduced air gaps enhance flux distribution, lowering core losses and improving overall energy efficiency.
Can 3D wound core transformers handle high power loads?
Yes, their robust construction and efficient cooling properties make them suitable for high-power applications while maintaining reliability.
Do three-dimensional wound core transformers require special maintenance?
No, they generally require standard maintenance similar to conventional transformers, but their durable design may reduce long-term wear and tear.
Are 3D wound core transformers environmentally friendly?
Yes, their higher efficiency reduces energy waste, and some designs use eco-friendly materials, making them a sustainable choice for modern power systems.