Affordable Three Phase Voltage Transformer for Energy Savings

Product Description

Oil Immersed Series transformer

Product Description

Zhejiang CHBEST Power Technology Co., Ltd is a technology-oriented enterprise specializing in R&D, production, sales and services of power transformers, HV/LV switchgear and related products. Our factory can offer the complete range of power distribution transformer.

Company Strengths

Company Strengths
1.Core Factory: Our factory is located in Wenzhou and it has professional supporting facilities. 

2.Experience & Products: With a professional manufacturing history of 15 years, we have gained more experience.
3.Authoritative Certifications: Products are certifed to CCC, CE, GB, CQC and others, with some holding carbon footprint certifications

4. Global Network: Partners are located inover 50 countries, such as the US, France, India, and Australia.

Choosing Zhejiang CHBEST Power means choosing a globally leading safe and sustainable power solution.

Product Description

Advantages

1 - Flame retardant,explosion-proof,non-pollution,environmental friendly, can be installed in the load center.

2 - Short circuit resistance, high lightning impact level,strong overload capacity.

3 - Low loss, high power saving effect.Economical operation, maintenance-free.

4 - Small volume, light weight, small space,easy installation.
 
5 - More stable internal structure, no malfunctions during transportation.

High-quality Materials

1 - The high-voltage winding is made of enamelled copper wire, and the low-voltage winding is made of copper foil.The high voltage winding is filled with glass fiber felt and poured by imported epoxy without filler in vacuum state. After curing, it forms a solid whole with high mechanical strength, less partial discharge and high reliability.

2 - The coil does not absorb moisture, the iron core, the clamp after special processing can be in 100% relative humidity and other harsh environment operation.Discontinuous operation without tide treatment.

3 - Thin resin insulation layer inside and outside the coil, good heat dissipation performance.Air natureal cooling (AN) is generally adopted for cooling.Air cooling system (AF) is available for any protective grade transformer.

Certifications

Specification

Nominal	Voltage unitcombination		Low voltage(KV)	Vector Group	No-load loss(W)	Loasloss (W)		No-load current(%)	Short-circuit impedance(%)
capacity(KVA)	High voltage(KV)	High voltage tap				F class	H class
		range				(120ºC)	(120ºC)
50			0.4	Yyn0 Dyn11	450	1420	1520	2.3	6
100	35 36 37 38.5	±2×2.5% or±5%			630	2090	2230	2
160					790	2810	3000	1.5
200					880	3320	3550	1.5
250					990	3800	4060	1.3
315					1170	4510	4820	1.3
400					1370	5410	5790	1.1
500					1620	6650	7110	1.1
630					1860	7690	8230	1
800					2160	9120	9760	1
1000					2430	10400	11100	0.75
1250					2830	12700	13600	0.75
1600					3240	15400	16500	0.75
2000					3820	18200	19500	0.75
2500					4450	21800	2330	0.75

Typical Solutions / Equipment Features:

Typical Solutions / Equipment Features:

Typical Solutions / Equipment Features:

Large Power Transformers: Used for stepping up and stepping down voltage at different levels and for long-distance power transmission. Examples include thousand-ton transformers transported via railway for HVDC transmission projects.

Green Transformers: Such as natural ester vegetable oil transformers, which feature a high fire point and are biodegradable, enhancing both safety and environmental friendliness.

Public Transformer Power Supply Model: All distribution facilities in a community (including transformers, switchgear assemblies, etc.) are uniformly constructed, operated, and maintained by the power supply utility. This model replaces the previous dedicated transformer model managed by property management, enhancing power supply reliability and reducing construction costs for developers.

Split-Winding Transformers: Feature a "one-drags-two" capability, allowing a single transformer to supply power to two circuits simultaneously. If one circuit fails, the other can continue operating, significantly enhancing power supply reliability. This is particularly suitable for new energy projects in remote areas. 

Assembled Switchgear: Integrates control, measurement, protection, and other electrical components into prefabricated assemblies. This enhances coordination rationality, economic efficiency, and operational flexibility.

Packaging & Shipping

After Sales Service

Global Technical Support & Rapid Response Service

Customized Maintenance Solutions & Extended Warranty Plans

Global Spare Parts Network & Express Delivery Assurance

24/7 multilingual online technical support platform covering installation, commissioning, remote diagnostics, and troubleshooting. We commit to responding within 2 hours and providing a solution or dispatching an engineer within 48 hours (depending on location and service agreement). All service personnel are ISO-certified trained, ensuring technical expertise and efficiency.

Preventive maintenance plans tailored to specific application scenarios (e.g., wind power, solar, grid systems), including scheduled inspections, performance optimization, and predictive spare parts replacement cycles;
Extended warranty options (up to 5 years beyond standard coverage), covering core component replacements and labor costs, minimizing long-term operational risks for clients.

Regional spare parts centers strategically located in key markets (Europe, Southeast Asia, North America), enabling delivery of standard parts within 72 hours (priority channels for partnered clients). All parts undergo OEM quality certification, and replacement installation guides (video & online support) are provided to ensure compliance and efficiency.

Company Profile

Zhejiang CHBEST Power Technology Co., Ltd.

Zhejiang CHBEST Power Technology Co., Ltd. is located in Liushi Town, the world-renowned capital of China's electrical appliances, with the blue sea in the east, Wenzhou Airport and Wenzhou Railway Station in the south, Yandang Mountain, a national scenic spot known as the "World Geopark" in the north, and the coastal high-speed railway, highway and 104 National Highway run through, with convenient sea, land and air transportation and strong cultural atmosphere, which is a resort for sightseeing and vacation. It is an enterprise that produces sulfur hexafluoride ring main unit, environmental protection gas insulated ring network switchgear, solid insulated ring main unit, opening and closing station, cable distribution box, high and low voltage complete sets of equipment, etc.

The company has a registered capital of 50 million yuan and nearly 200 employees. The company has strong technical force, bringing together a group of power engineering design and development, manufacturing for many years of power automation technology elite, the company developed new products in environmental protection, miniaturization, intelligence, maintenance-free and other aspects to achieve a number of technological breakthroughs, the company has always put customer satisfaction in mind, the establishment of a nationwide customer service network, equipped with hard-working, technical customer service team, so that customers can respond to their needs.

The company adheres to the business principle of "keeping the right and surprising· harmony and difference", in line with the tenet of "seeking development by science and technology, seeking efficiency by quality" and "quality first, reputation-based", wholeheartedly providing users with high-quality products and services, constantly pursuing innovation in the fierce market competition, ensuring quality and perfect service has won the praise of many customers.

Facing the future, the implementation of the brand development strategy, continue to new product development, scientific and technological innovation as the guide, consolidate and develop the dominant position of existing products, and constantly open up the market to keep pace with the times, and strive to create "Shanghai CHBEST" one by one our own brand!

1.Produced from wide range of equipment.

We have a wide range of equipment, including sandblasting machines,polishing machines, sawing machines, presses, and CNC machines, withnearly 150+ units in total.

2.Stress testing and performance testing.

Our products undergo multiple rounds of quality inspections-from rawmaterial processing to production, and even after completion. Additionally,we have a dedicated product laboratory in the 3F workshop for enhancedquality control.

3.Design exploring

High Technology in design exploring and production workmanship

4.Customization

CHBPOWER is a factory with a professional engineering team. We cancustomize products based on your provided drawings and also offersuggestions for your reference.

5.Extensive inventory

We keep substantialinventory to ensure the shortest possible delivery time.

FAQ

1.Are you a trading company or factory?

We are a manufacturer boasting 15 years of industry experience and holding proprietary import-exportrights.

2.May I request free samples?
Free samples can be provided for first cooperation under sincere cooperation.

3.What certifications do you have?
Yes, we hold ISO, CE, and PED certificates. In addition, we possess a number of design patents and a Special Equipment Manufacturing License.

4.How do you control the quality?
In quality control, the most critical aspect is preventing material mix-ups.Dur factory has installed multiple spectroscopic PMI analyzers in the raw material warehouse, productionworkshop, and dispatch area.
Equipment such as pressure testing machines, PMI analyzers, RA roughness testers, and hardnessesters all contribute to ensuring quality. Additionally, we have our own laboratory and can provide extratest data for special products.
During the production process, dedicated inspectors conduct checks at different stages.Furthermore, a specialized team of quality inspectors examines finished products to effectively preventissues like quantity shortages, quality defects, and chemical mix-ups.

5.If there is any quality problem, how do you solve it?

We believe that protecting our clients'interests is the cornerstone of our business. While we cannotguarantee 100% perfection, occasional quality issues may still arise.Depending on the specific situation, we typically resolve such cases through replacements,compensation, or resending goods. The specific solution will be discussed and agreed upon with thecustomer based on the actual circumstances.

6. How long is your delivery time?
For normal products in 7-10 days; For bulk order, in 15-25 days. It depends.

7. Warranty time?
3 years warranty for all of our stainless steel products. Gaskets or the easy broken parts are not includeddue to the different application for customers.