Why does the transformer produce noise and how to reduce it?

Noise comes from magnetic vibration. Reduce it by selecting low-noise models (<65dB), installing shock-absorbing pads, and keeping it away from rigid structures.

Can transformers be customized?

Yes, customization is available for capacity (5kVA-5000kVA), voltage ratio, insulation class, and special functions like isolation or waterproof design.

500kVA Pole Mounted Single Phase Power Transformer Aluminum Step up Step Down

Name: 500kVA Pole Mounted Single Phase Power Transformer Aluminum Step up Step Down
Brand: Chongqing Zexing Electrical Equipment Co., Ltd.
SKU: 2129155902

Chongqing, ChinaChongqing Zexing Electrical Equipment Co., Ltd.

US$650.00

50 Pieces

Product profile

Customization

Available

Application

Electronic

Phase

Single

Model NO.

transformer

Core

Core-type Transformer

Cooling Method

Oil-immersed Type Transformer

Winding Type

Separated Winding Transformer

Certification

ISO9001-2000, ISO9001

Usage

Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer

Frequency Characteristics

Power Frequency

Shape of Core

Brand

Zexing

Warranty

1 Years

Frequency

50Hz/60Hz

Rated Capacity

0.5-2000kVA

Type

Single Transformer

Output Voltage

110V, 220V Customized

Input Voltage

13.2kv Customized

Transport Package

Wooden Cartons

Specification

AS PER CLIENT REQUIRED

Trademark

ZEXING

Origin

Chongqing China

HS Code

8504329000

Production Capacity

500000

Key features

Pole-Mounted Design: Space-saving structure ideal for residential, commercial, and rural grid scenarios.

Wide Capacity Range: Available in 15kVA to 500kVA options to fit diverse load demands.

Customizable Voltage: Input and output voltages can be customized to specific project requirements.

Weather-Resistant: Durable casing designed to withstand rain, dust, and temperature fluctuations.

High Efficiency: Minimizes energy loss for reliable power supply and low upkeep costs.

ISO Certified: Manufactured under ISO9001-2000 and ISO14001 quality management standards.

Company profile

Chongqing Zexing Electrical Equipment Co., Ltd.

Chongqing, China

Business Type: Manufacturer/FactoryExport Year: 2020-03-01Nearest Port: Chongqing, Shanghai, NingboAverage Response Time: ≤2.29hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, CIP, FCA

AI-Powered supplier vetting

SummaryThe supplier is a limited company with five employees and a valid import/export license. It reports an annual production capacity of 60,000 tons and cooperation with Chinese national and local power grids, but the provided information does not independently verify these claims. The supplier offers sample, design, full, and minor customization, provides ODM services, and reports new product activity during the past year, with one R&D engineer identified. Service limitations include no overseas agents or branches, overseas warehouses, overseas showroom, inventory capability, or offline trade-show participation. Financial records are indicated for 2021–2023, but no financial figures or assessment results are provided. No formal certification, after-sales capability, or specific customer cases are documented.

Supplier typeThe supplier is legally identified as a limited company, not part of a larger company group, with five employees and a valid import/export license. Its stated business scopes cover mechanical equipment, wind turbines and components, rail-transit systems, environmental equipment, underwater systems, hardware, and other products, indicating a diversified trading and industrial-equipment profile.

R&D capabilityThe supplier reports new products during the past year, identifies one R&D engineer, and provides ODM services. However, it has no available SDK, and no R&D spending, patents, laboratory resources, or documented innovation results are supplied; the evidence supports some innovation activity but not a broad or strongly validated capability.

Production capacityThe supplier states annual production capacity of 60,000 tons and the ability to produce multiple product lines simultaneously while shortening production cycles. It reports one-month average lead times in both peak and off-season, but no inventory capability, no confirmed manufacturing-capacity contract, and no detailed product-specific tonnage are provided.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, and minor customization. It also reports ODM service availability, providing direct evidence of broad product-design and customization support.

Client casesThe supplier states that it is one of the cooperating manufacturers for the Chinese National Power Grid and local power grids. This is a stated customer-related reference, but no customer names, contracts, project details, order scope, or independent verification are provided; no other specific customer cases are documented.

Product Q&A

Q:How to select the appropriate transformer capacity?

Determine capacity based on total actual load power with 10%-20% redundancy. For example, a 12kW load recommends a 15kVA transformer to avoid overload.

Q:What is the difference between dry-type and oil-immersed transformers?

Dry-type transformers are safer for indoor/dense areas with no flammable oil. Oil-immersed types offer better heat dissipation and lower cost, ideal for outdoor or large-capacity scenarios.

Q:What qualifications are required for installation?

Installation must be conducted by professional personnel with electrical power installation qualifications, complying with local regulations and standards like IEC 60076.

Q:What does the warranty cover?

Warranty covers quality issues from non-human factors like coil failures, insulation breakdown, and core defects. The period is usually 12-24 months from installation.

Q:What protective measures are needed for outdoor installation?

Choose products with IP65 or above protection, implement lightning protection and grounding per local codes, and regularly clean dust for heat dissipation.