In high-voltage equipment manufacturing, factory withstand voltage testing is a critical step to verify insulation strength and ensure product reliability before delivery. Recently, a professional wall bushing manufacturer in Beijing introduced the YDQ Gas-Insulated Power Frequency Test Transformer developed by Baoding Qilida Electric Technology Co., Ltd.
With on-site technical guidance and in-depth training, the customer successfully optimized its AC withstand voltage testing process, significantly improving factory quality control standards.
Project Background: Upgrading Wall Bushing Factory Testing
Wall bushings are key components that allow current to pass safely between substations and buildings. Their insulation performance directly impacts power system safety and operational reliability.
With rising requirements from modern grid infrastructure, the Beijing-based manufacturer sought to upgrade its factory testing equipment to achieve:
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Higher accuracy in AC withstand voltage testing
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Improved operational efficiency
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Standardized testing procedures
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Enhanced safety protection
After comprehensive evaluation, the company selected the YDQ Gas-Insulated Power Frequency Test Transformer as its preferred solution.
Equipment Delivery and Technical Training
Upon delivery, Qilida’s engineering team conducted a two-day on-site installation, commissioning, and technical training program.
The training covered:
1. Equipment Structure and Working Principle
Engineers explained the design advantages of the YDQ Gas-Insulated Power Frequency Test Transformer, including:
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SF₆ gas insulation structure
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Compact size and lightweight design
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No oil leakage risk
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Suitable for frequent relocation in workshops
This helped the customer understand the operational advantages compared to traditional oil-immersed test transformers.
2. Standardized Operation Guidance
For different wall bushing voltage ratings, engineers demonstrated:
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Voltage adjustment procedures
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Overcurrent protection settings
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Test circuit wiring configuration
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Safety operation protocols
This ensured that the AC withstand voltage test process remained safe, stable, and compliant with industrial standards.
3. Parameter Matching and Test Optimization
Based on the customer’s product specifications, both teams discussed:
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Test voltage settings
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Withstand duration control
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Pass/fail judgment criteria
As a result, the customer established a standardized factory testing workflow centered around the Gas-Insulated Power Frequency Test Transformer.
4. Practical On-Site Testing
Under technical supervision, the customer’s test personnel conducted multiple withstand voltage tests on wall bushings.
The YDQ Gas-Insulated Power Frequency Test Transformer operated stably, delivering accurate and repeatable test results.
Customer Feedback and Results
After systematic training, the customer’s technicians fully mastered operation and maintenance procedures.
The technical director commented:
“Qilida not only delivered high-quality equipment but also provided professional technical support. Our team now understands the testing logic and equipment principles, allowing flexible adjustments according to product characteristics. This greatly improves our factory quality control capability.”
Core Advantages of the YDQ Gas-Insulated Power Frequency Test Transformer
The YDQ series demonstrated strong value in factory testing environments:
1. Lightweight and Flexible
Using SF₆ gas insulation, it is over 40% lighter than traditional oil-immersed transformers, making it easy to move between workstations.
2. Safe and Environmentally Friendly
No oil leakage risk, no need for periodic oil replacement, clean operation, and reduced maintenance cost.
3. Stable Output with Low Waveform Distortion
Ensures high-precision AC withstand voltage testing with reliable and repeatable data.
4. Comprehensive Protection Functions
Built-in overcurrent and overvoltage protection safeguard both equipment and test objects.
Why Choose a Gas-Insulated Power Frequency Test Transformer?
Compared to conventional oil-type test transformers, a Gas-Insulated Power Frequency Test Transformer offers:
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Higher mobility
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Cleaner operation
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Lower maintenance requirements
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Improved safety performance
For manufacturers of bushings, transformers, switchgear, and other high-voltage components, upgrading to a gas-insulated solution significantly enhances factory test efficiency and product reliability.
Conclusion
The successful implementation of the YDQ Gas-Insulated Power Frequency Test Transformer in this Beijing wall bushing factory highlights its reliability, portability, and precision in AC withstand voltage testing.
For high-voltage equipment manufacturers seeking to improve factory testing capability, a Gas-Insulated Power Frequency Test Transformer is an essential solution for ensuring insulation strength verification and delivering high-quality products to the power grid market.
