100kVA 135kVA 150kVA Three-phase dry-type power transformer

Name: 100kVA 135kVA 150kVA Three-phase dry-type power transformer
Brand: Wenzhou Rockwill Electric Co., Ltd.
SKU: 2647
Price: 1.99 USD
Availability: InStock

Wenzhou Rockwill Electric Co., Ltd.

17yrs 700++ staff 108000m²+m² US$150000000+ China

Wenzhou Rockwill Electric Co., Ltd.

17yrs 700++ staff 108000m²+m² US$150000000+ China

Attributes Description Documentation Resource Library Supplier

Key attributes

Brand	ROCKWILL
Model NO.	100kVA 135kVA 150kVA Three-phase dry-type power transformer
Rated frequency	50/60Hz
Rated capacity	150KVA
Series	S(D)G

Product descriptions from the supplier

Description

Product Description

As a pioneer in China's power transformer industry, we have specialized in the R&D and manufacturing of power transformer equipment for decades, and established industry standards with core technologies.

Our 100kVA 135kVA 150kVA Three-Phase Dry-Type Power Transformer is engineered for superior performance, safety, and reliability in a wide range of commercial and industrial applications. Unlike liquid-filled units, this transformer utilizes advanced vacuum pressure impregnation (VPI) and encapsulation technology with high-class insulating materials, making it inherently flame-retardant, self-extinguishing, and free from oil leaks or environmental contaminants.

Designed for exceptional operational efficiency with low no-load and load losses, it significantly reduces energy consumption and total cost of ownership. Its robust construction ensures stable voltage transformation and distribution in demanding environments, from powering manufacturing equipment and HVAC systems to serving as a critical component in data centers and building infrastructure. With easy installation, minimal maintenance requirements, and a compact footprint, this 150kVA dry-type transformer represents a smart, safe, and eco-friendly power solution built for long-term dependability.

Product features

Special Transformer SG and DG Series include three-phase (single-phase) isolation transformers and three-phase (single-phase) autotransformers. They are primarily used in various high and low voltage complete electrical sets, import-export equipment, precision machine tools, UPS, electroplating, lighting, heating, communications, chemical industry equipment, and other applications for control power and power supply purposes. These transformers feature effective harmonic resistance, strong anti-interference capability, and high safety. Design and production strictly comply with IEC international standards and relevant GB national standards.

SG DG Dry-type Transformer Technical Parameters

The voltage classes of some of these Power Transformer include 6kV, 6.3kV, 6.6kV, 6.9kV, 7.2kV, 10kV, 10.5kV, 11kV, 11.5kV, 12kV, 13.2kV, 13.8kV, 14.5kV, 14.4kV, 15kV, 15.5kV, 15.6kV, 17.5kV, 20kV, 21.9kV, 22kV, 24kV, 30kV, 33kV, 33.5kV, 34.5kV, 35kV, 36kV, 38kV, 38.5kV, 40.5kV, 44kV, 45kV, 46kV, 66kV 69kV.72.5kV 88kV 110kV 115kV 123kV 125kV 126kV 132kV 138kV 145kV 150kV 154kV 161kV 170kV 220kV 225kV 230kV 245kV 275kV 330kV 345kV 363kV 380kV 400kV 500kV Power transformers of voltage ，and aboveand customization is available.

Product Name	Model Specification	Parameter Ratio (kV)	Connection Group	Overall Dimensions (Length * Width * Height, mm)	Foot Mounting Dimensions (mm)	Total Weight (kg)
Single-phase Small Dry-type Transformer	DG-1kVA	0.38/0.22	Dyn11/Yyn0	162 * 185 * 190	100 * 115	13
	DG-1.5kVA			191 * 170 * 200	130 * 135	17
	DG-2kVA			230 * 180 * 250	190 * 120	23
	DG-2.5kVA			230 * 185 * 250	190 * 125	25
	DG-3kVA			230 * 190 * 250	190 * 130	30
	DG-4kVA			230 * 200 * 250	190 * 150	38
	DG-5kVA			230 * 210 * 250	190 * 160	46
	DG-6kVA			230 * 220 * 250	190 * 175	55
	DG-8kVA			230 * 230 * 250	190 * 185	62
	DG-10kVA			270 * 270 * 250	170 * 150	70
Three-phase Small Dry-type Transformer	SG-1kVA	0.315/0.38 0.315/0.4 0.38/0.38 0.38/0.22 0.38/0.22 0.62/0.4 0.69/0.4		280 * 140 * 280	200 * 90	19
	SG-1.5kVA			280 * 155 * 280	200 * 105	24
	SG-2kVA			280 * 160 * 280	200 * 110	26
	SG-2.5kVA			280 * 170 * 280	200 * 120	29
	SG-3kVA			310 * 170 * 300	200 * 125	38
	SG-4kVA			310 * 175 * 300	200 * 130	42
	SG-5kVA			360 * 170 * 350	200 * 125	50
	SG-8kVA			410 * 175 * 400	200 * 125	72
	SG-10kVA			410 * 180 * 400	200 * 135	78
	SG-12kVA			410 * 195 * 400	200 * 145	92
	SG-15kVA			410 * 195 * 400	200 * 145	92
	SG-20kVA			480 * 225 * 450	200 * 165	130
	SG-30kVA			520 * 350 * 550	280 * 300	210
	SG-35kVA			540 * 350 * 610	300 * 300	230
	SG-40kVA			580 * 350 * 610	300 * 300	270
	SG-50kVA			580 * 350 * 610	300 * 300	310
	SG-60kVA			710 * 450 * 720	400 * 400	360
	SG-70kVA			710 * 450 * 720	400 * 400	390
	SG-80kVA			850 * 500 * 720	450 * 450	400
	SG-90kVA			850 * 500 * 780	450 * 450	420
	SG-100kVA			850 * 500 * 780	450 * 450	430
	SG-110kVA			850 * 500 * 780	450 * 450	450
	SG-120kVA			850 * 500 * 820	450 * 450	480
	SG-130kVA			850 * 500 * 780	450 * 450	500
	SG-135kVA			870 * 600 * 820	500 * 550	520
	SG-140kVA			870 * 600 * 820	500 * 550	540
	SG-150kVA			870 * 600 * 820	500 * 550	550

Note: the above parameters are for reference only and can be customized according to customer requirements.

Conditions of use

The upper limit of ambient temperature is +40℃, and the lower limit is -5℃ (indoor).
The altitude does not exceed 1000m.
The daily average relative humidity ≤ 95%, and the monthly average relative humidity ≤90%.
For special sites, please state in advance, and our company will make corresponding design adjustments.

FAQ

Q: What is the capacity range of power transformers up to 345kV, and what are the standardized capacity ratings?

Transformer capacity is strongly related to voltage level, and the capacity range and standard values comply with international general specifications. Details are as follows:

Capacity range by voltage level: ① High Voltage (HV, 66kV - 220kV): 5MVA – 250MVA; ② Extra-High Voltage (EHV, 220kV - 400kV): 250MVA – 600MVA+. Higher capacities are usually achieved through forced cooling methods (e.g., ONAF, OFAF).
Standardized capacity ratings: Internationally accepted standard capacities include 30MVA, 45MVA, 60MVA, 90MVA, 100MVA, 120MVA, 150MVA, 200MVA, 250MVA, 315MVA, 400MVA, and 500MVA. These ratings are widely adopted in design and production.

Know your supplier

ROCKWILL

Wenzhou Rockwill Electric Co., Ltd.
17yrs 500-1000 employees 108000m²+m² US$150000000+ China

Wenzhou Rockwill Electric Co., Ltd.

17yrs 500-1000 employees 108000m²+m² US$150000000+ China

Online store

On-time delivery rate

Response time

100.0%

≤4h

Company overview

Workplace: 108000m²m² Total staff: 700+ Highest Annual Export(usD): 150000000

Workplace: 108000m²m²
Total staff: 700+
Highest Annual Export(usD): 150000000

Services

Business Type: Design/Manufacture/Sales

Main Categories: High Voltage Electrical Apparatus/Electric transformer

Whole life care manager

Whole-life care management services for equipment procurement, use, maintenance, and after-sales, ensuring safe operation of electrical equipment, continuous control, and worry-free electricity consumption.

The equipment supplier has passed platform qualification certification and technical evaluation, ensuring compliance, professionalism, and reliability from the source.

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Model

SG-150kVA

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Whole life care manager

The equipment supplier has passed platform qualification certification and technical evaluation, ensuring compliance, professionalism, and reliability from the source.

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