Structured Manufacturing Data (2026)

High-Voltage Transformer / Generator

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard High-Voltage Transformer / Generator used in the Electrical Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical High-Voltage Transformer / Generator is characterized by the integration of High-Voltage Windings and Low-Voltage (Primary) Windings. In industrial production environments, manufacturers listed on CNFX commonly emphasize Electrical steel (silicon steel) laminations construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A specialized electrical component that generates and transforms high-voltage electrical energy for testing purposes.

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Product Specifications

Technical details and manufacturing context for High-Voltage Transformer / Generator

Definition
The High-Voltage Transformer/Generator is the core power source component within a High-Voltage Test Unit. Its primary function is to produce, step up, and regulate the high-voltage electrical output required to perform dielectric withstand tests, insulation resistance tests, and other high-potential (hipot) tests on electrical equipment, components, and insulating materials.
Working Principle
It operates by taking a standard low-voltage AC input, using a transformer to step up the voltage to the required high-voltage level (e.g., kV range). In generator configurations, it may also involve rectification circuits to produce high-voltage DC. The output is precisely controlled and isolated to deliver a stable, high-voltage test signal to the device under test (DUT).
Common Materials
Electrical steel (silicon steel) laminations, High-grade copper or aluminum windings, Insulating materials (paper, polymer film, oil)
Technical Parameters
  • Maximum output voltage rating (kV) Customizable
Components / BOM
  • High-Voltage Windings Part
    Carry the stepped-up high-voltage current; must be heavily insulated.
    Material: Enameled copper conductor, insulating paper/polymer
  • Low-Voltage (Primary) Windings Part
    Receive the input power from the mains supply.
    Material: Enameled copper or aluminum conductor
  • Magnetic Core Part
    Provides a low-reluctance path for the magnetic flux to link the primary and secondary windings efficiently.
    Material: Grain-oriented electrical steel laminations
  • Insulation System
    Electrically isolates the high-voltage components from each other and the grounded enclosure to prevent breakdown.
    Material: Insulating oil, epoxy resin, porcelain bushings, polymer barriers
  • Voltage Regulation/Tapping Mechanism
    Allows for precise adjustment of the output voltage level.
    Material: Copper contacts, insulating selector switch components

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for High-Voltage Transformer / Generator.

high voltage transformer for electrical testing industrial generator with voltage regulation silicon steel core transformer specifications copper winding high voltage generator electrical testing equipment transformer

Applied To / Applications

This component is essential for the following industrial systems and equipment:

High-Voltage Test Unit
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric pressure operation only (non-pressurized)
other spec: Maximum output voltage: 1000 kV, Frequency range: 50-60 Hz, Insulation class: H (180°C)
temperature: -20°C to +40°C ambient operating range
Media Compatibility
✓ Clean dry air environments ✓ Laboratory-grade nitrogen atmospheres ✓ SF6 gas insulated systems
Unsuitable: High humidity or corrosive chemical environments
Sizing Data Required
  • Required output voltage (kV)
  • Power rating (kVA)
  • Test duration and duty cycle

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Insulation breakdown
Cause: Thermal aging from prolonged overheating, moisture ingress, or contamination degrading dielectric strength
Winding deformation or short circuit
Cause: Mechanical stress from through-fault currents, loose clamping, or thermal cycling leading to displacement and insulation failure
Maintenance Indicators
  • Audible humming or buzzing with increased intensity or irregular patterns indicating loose components or arcing
  • Visible oil leaks, discoloration, or bulging in transformer tanks suggesting internal pressure issues or insulation fluid degradation
Engineering Tips
  • Implement regular dissolved gas analysis (DGA) and oil testing to detect early signs of insulation degradation and thermal faults
  • Maintain proper cooling system operation with routine cleaning of radiators/fans and monitoring of temperature differentials to prevent thermal stress

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 Quality Management Systems ANSI/IEEE C57.12.00 Standard for Liquid-Immersed Distribution, Power, and Regulating Transformers CE Marking (EU Directive 2014/35/EU for Electrical Equipment)
Manufacturing Precision
  • Winding Resistance: +/- 2% of design value
  • Core Lamination Stack Height: +/- 0.5mm
Quality Inspection
  • Partial Discharge Test (IEC 60270)
  • Dielectric Withstand Test (High-Potential Test)

Factories Producing High-Voltage Transformer / Generator

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What are the key applications for this high-voltage transformer/generator?

This transformer/generator is designed for electrical testing applications, including insulation testing, high-voltage equipment validation, and laboratory simulations requiring precise voltage transformation and generation.

How does the voltage regulation/tapping mechanism work in this transformer?

The voltage regulation system allows adjustment of output voltage through tap changers on the windings, enabling precise control for different testing scenarios while maintaining stable performance and safety.

What maintenance is required for the insulation system in high-voltage transformers?

Regular inspection of insulation materials (paper, polymer film, oil) is essential, including dielectric testing, moisture monitoring, and periodic oil analysis to ensure long-term reliability and prevent electrical breakdown.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Electrical Equipment Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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