Three Phase S20 30-20000kVA 6kv-35kv Oil Immersed Power Distribution Transformer

Name: Three Phase S20 30-20000kVA 6kv-35kv Oil Immersed Power Distribution Transformer
Brand: Shandong Qiansheng Electric Power Equipment Engineering Co., Ltd.
SKU: 2131445042

Shandong, ChinaShandong Qiansheng Electric Power Equipment Engineering Co., Ltd.

US$480.00-880.00

1 Piece

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Application

Power, Electronic, Instrument, Lighting, Rectifier, Audio

Phase

Three

Model NO.

QSBYQ

Core

Core-type Transformer

Cooling Method

Dry-type Transformer

Winding Type

Separated Winding Transformer

Certification

ISO9001-2000, ISO9001, CCC

Usage

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

Frequency Characteristics

High Frequency

Shape of Core

Ring

Brand

ABB

Rated Capacity

Flexible Selection From 50kVA to 2500kVA

Voltage Class

Support 10kv/20kv/35kv Input and Output

Phase Number

Optional Three-Phase Standard or Single-Phase Spec

Winding Material

High-Conductivity Copper Winding or Cost-Effective

Protection Grade

Basic IP54 or Upgraded IP65 Fully Sealed

Installation Method

Indoor Floor-Mounted Design

Custom Installation Method

Outdoor Box-Type Integrated Installation

Voltage Regulation

off-Circuit Tap Voltage Regulation (±2×2.5%)

Custom Voltage Regulation

on-Load Automatic Regulation with ±2% Voltage Accu

Temperature Control

Equipped with Intelligent Thermostat for Real-Time

Protection Function

Over-Temperature Automatic Alarm for Fast Fault Ea

Monitoring Function

Installation of Partial Discharge Online Monitorin

Custom Monitoring Function

Dissolved Gas Monitoring for Oil-Immersed Transfor

Communication Function

Support 4G/5g Remote Data Transmission

Noise Reduction

Low-Noise Core Structure with Operating Noise ≤50d

Transport Package

Wooden Box

Specification

customized

Trademark

Origin

Linyi City, Shandong Province

HS Code

8504210000

Production Capacity

5000PCS/Year

Key features

High Energy Efficiency: 1000kVA transformer with 0.35kW no-load loss and 99.6% full-load efficiency.

Strong Overload Capacity: Operates at 150% rated load for 30 minutes with 2g short-circuit impact resistance.

Long Design Life: Dry-type transformer designed for a service life of 30 years or more.

Flexible Customization: Supports custom capacity, voltage, winding material, and installation methods.

Advanced Monitoring: Optional dissolved gas monitoring and 4G/5G remote data transmission.

Company profile

Shandong Qiansheng Electric Power Equipment Engineering Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: Confidential CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.13h

AI-Powered supplier vetting

SummaryThe supplier presents itself as a professional manufacturer in the electrical and electronics sector, with a 17,316 m² manufacturing plant, R&D, production, sales, and after-sales functions, plus stated quality-management controls. It offers broad customization and ODM services, uses CNC laser cutting, shearing, and bending equipment, and has documented procedures for finished-product inspection, service assessment, corrective actions, and complaint handling. Its business scope includes distribution and control equipment, metal structures, charging piles, charging infrastructure, and related power equipment. However, it reports no new products in the past year, no SDK, no overseas warehouse, showroom, agent or branch, or offline trade-show participation. Export-start information is confidential, overseas service coverage is recorded as zero, and the financial data provided are coded values without sufficient interpretable evidence. The materials do not establish certifications or specific customer cases.

Supplier typeThe supplier is identified as a professional manufacturer serving the Electrical & Electronics sector, with R&D, production, sales, and after-sales functions. Its stated business scope covers control equipment, metal structures, charging piles, charging infrastructure, and power facilities.

After-Sales capabilityThe company states that it provides after-sales service and has written procedures with records for service assessment, corrective and preventive actions, and customer complaints. However, it reports no overseas warehouse, showroom, agent or branch, and overseas service coverage is recorded as zero, limiting demonstrated international service reach.

Production capacityThe supplier reports a 17,316 m² manufacturing plant, CNC laser cutting, shearing and bending machines, standardized finished-product inspection instructions, and documented service procedures. It also reports peak- and off-season lead times within 15 workdays, supporting a positive assessment of stated production capability.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization, and separately states ODM availability. These repeated declarations provide direct evidence of broad customization capability.

Product Q&A

Q:What's the difference between copper and aluminum windings?

Copper has lower resistance, higher efficiency, better heat resistance and durability, but higher cost; aluminum is cheaper but requires larger cross-section for same current.

Q:Can a 50Hz transformer be used with 60Hz power, or vice versa?

Generally not recommended. Deviation in frequency will change core loss, impedance and cooling performance, possibly causing overheating or damage.

Q:Why does a transformer hum? How to reduce it?

Mainly from magnetostriction of the core under AC. Solutions: Use low-noise core materials, improve clamping, ensure no DC in windings, and proper installation.

Q:What are the main losses in a transformer?

Iron loss (hysteresis + eddy current, constant with load) and copper loss (winding resistance loss, load-dependent).

Q:How to handle transformer overheating?

First cut off load and power; check cooling system, ventilation, loose connections, overload or internal faults, then troubleshoot and repair.