Multiple Frequency Induced-Voltage Test Set for Power Transformer Inter-Turn Insulation Test
The SXGY Series Multi-Frequency Induced Withstand Voltage Test Set is specifically engineered for transformer production and maintenance applications, providing a dedicated power supply for frequency-multiplied induced voltage testing.
Product Overview
Compact, lightweight, and featuring an ergonomic design with intuitive controls, this test set incorporates multiple protective functions including zero-position start protection, overcurrent and overvoltage protection with audible/visual alarms.
Key Features
- Electrical operation capability
- Over-current protection with alarm warning
- Emergency stop function
- Zero closing protection function
- Relays and contactors from domestic and international well-known manufacturers
Key Components
| Component |
Description |
| Variable Frequency Power Source |
Typically operates in the range of 100-400 Hz to avoid core saturation while testing |
| Step-up Transformer |
Increases voltage to required test levels (often up to several kV) |
| Control System |
For precise voltage regulation and test sequencing |
| Measurement Instruments |
For monitoring voltage, current, and detecting breakdowns |
| Protection Circuits |
To safeguard equipment during flashover or breakdown |
Testing Principle
The test system operates by applying a higher-than-rated frequency to the windings to reduce overall inductive reactance. This allows the generation of the required test voltage across the winding insulation using a manageable input current level. The standard test profile applies a voltage equal to twice the rated voltage plus 1 kV, at a frequency typically ranging from 100 Hz to 400 Hz.
Available Test Types
- Induced Voltage Test
- AC Withstand Voltage Test
- Turn-to-Turn Insulation Test
- Main Insulation Test
- Frequency Sweep Test
- Partial Discharge Test
- Insulation Resistance Test
Standards Compliance
- IEC 60076 (Power transformers)
- IEEE C57.12.90
- Other regional and industry-specific standards
About Sansion Power Electric
Established in 2005, Sansion Power Electric is a technology company with over 20 years of experience in R&D, manufacturing, and marketing of power electrical testing products. Our solutions are widely used in power electric, railroad, energy conservation, environment protection, water conservancy, petrochemical industry, aerospace, and other fields.
Our company includes R&D department, instruments manufacturing workshop, HV workshop, sample exhibition room, HV testing laboratory, quality control department, and employs over 80 staff including 20 technical engineers. We have obtained ISO9001 quality system certification and all products strictly conform to international IEC and Chinese state standards.
Frequently Asked Questions
Is your company a sales company or a manufacturer?
Sansion Power Electric Co., Ltd. is an industrial and trade enterprise, with its own factory, self-produced and self-sold. We were founded in 2005 and have twenty years of production experience. Our company has reliable production lines, test rooms and R&D centers.
Whether the goods are in stock, whether they can be customized, and how long the delivery time is?
After the goods have been ordered, we can be made to order according to the special requirements of customers by using the latest technology. The delivery time is usually within 10 working days if there are no accidents.
Is the quality guaranteed?
In order to ensure quality, we use imported components in large quantities. After three times of quality inspection, the goods can be sent out, and the export is uniformly packed in non-fumigation wooden boxes.
What are the after-sales terms?
We offer free consulting service, one year warranty, and adopt various methods such as email communication, video calls, technology door-to-door, aiming to solve any after-sales problems in a timely manner.
What are the cooperative countries or regions?
Products have been successfully exported to the United States, France, Brazil, Australia, Spain, Portugal, Oman, Russia, the Netherlands, Indonesia, Bangladesh, Saudi Arabia, Chile, Colombia, Panama, Malaysia and other countries and regions.
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