Standard InsightsSeries 04 · GIS Test Equipment
How to Specify GIS High-Voltage Test Equipment
Define test voltage, waveform, specimen capacitance, measurement background, space and safety interfaces before requesting a test-system design.
PFTS300kV ～ 1250kV
Review model drawings and test evidence
GIS Testing & Diagnostic Equipment
Power Frequency Withstand Voltage Test System
300kV-1250kV Power Frequency Withstand Voltage & Partial Discharge Test System for High-Voltage Insulators & GIS Components
Rated Voltage300kV ～ 1250kV
Rated Current1A ～ 5A
Insulation TypeSF6 Gas-Insulated / Metal-Clad Enclosed
Catalog standardGB/T 16927.1 / IEC 60060-1 / IEC 62271-203 / DL/T 555
PD requirementConfirm by model
Test evidenceRequest with RFQ
Buyer requirement checklist
Size the test source around the object, connection and test program.
- Test object, capacitance and required voltage waveform
- Frequency range, duty cycle and site/lab use
- PD sensitivity, measurement and calibration needs
- GIS connection, power supply and safety envelope
IEC 60060-1 describes HV test techniques; IEC 60270 describes charge-based PD measurement. Confirm the apparatus test standard separately.
Application references (customers and institutions)
- ABB
- SIEMENS
- HYOSUNG
- STATE GRID
- China XD Group (Xikai Electric)
- PINGGAO ELECTRIC
- Sieyuan Electric
- Shenma Power
- Qingta High Voltage
- Changgao Group
- Rebos
- CHNT
- TGOOD
- Xi'an Jiaotong University
- Jiangsu Electric Power Research Institute
Product Technical Overview
The Power Frequency Withstand Voltage Test System is designed for power-frequency withstand voltage testing of high-voltage electrical equipment and insulation components. It supports the evaluation of electrical insulation performance under specified test voltage conditions.
Based on customer requirements and product configurations, the system is engineered with dedicated test fixtures and customized arrangements to accommodate different equipment structures and testing requirements.
Key Features:
• Designed for power-frequency withstand voltage testing up to 1250kV
• Conduct electric field analysis according to customer product assembly structure and design special test tooling to ensure test effectiveness
• Configure test tooling according to customer production capacity requirements to ensure testing efficiency
• Customized test fixtures for different product configurations
• Suitable for high-voltage electrical equipment and insulation components
// CUSTOM SOURCING & ENGINEERING SPECInquire Now
EONOVA supplies custom-tailored power frequency test fixtures, test tanks, and automated testing arrangements based on customer insulator drawings and capacity requirements. EONOVA – Your Sourcing Partner for High-Voltage Testing Equipment from China.
Compatible Substation Apparatus
Gas-Insulated Switchgear (GIS) basin insulators & support insulatorsHigh-voltage circuit breaker insulating cylinders & operating rodsPower transformers and high-voltage bushing insulation componentsResearch institutes and third-party high-voltage test laboratories
Power Frequency Withstand Voltage Test System (PFTS) Technical Specifications Table
Catalog document (PDF)
Check the document model and revision; final dimensions require approved drawings.
Showing 8 of 8 models
Catalog values are representative. Confirm the selected model, drawings and test evidence during inquiry.IEC 60060-1 describes HV test techniques; IEC 60270 describes charge-based PD measurement. Confirm the apparatus test standard separately.
| Parameter | Specification |
|---|---|
| Rated Test Voltage | 300 kV ～ 1250 kV (Power Frequency AC 50/60 Hz) |
| System PD Background | ≤ 2 pC (at 100% rated test voltage) |
| Insulating Medium | SF6 Gas (Operating pressure 0.35 ～ 0.50 MPa) |
| Tested Components | GIS Basin Insulators, Insulating Cylinders, Operating Rods, Bushing Shells |
| Tooling Fixtures | FEA Electric Field Optimized Custom Test Jigs & Quick-Access Chambers |
| Control & Acquisition | Automated PLC console with touch screen, automatic ramp, and PD measurement |
| Safety Protection | Overvoltage, overcurrent, flashover breakdown trip, SF6 pressure interlock |
| Standard Compliance | GB/T 16927.1, IEC 60060-1, IEC 62271-203, DL/T 555 |
Custom Engineering & Flange Dimensions Note:
Dimensions, interfaces and replacement compatibility require approved drawings and technical review.
Power Frequency Withstand Voltage Test System Core Engineering Advantages
300kV-1250kV Full UHV Range
300kV-1250kV Full UHV Range: Specialized test vessels and busbar interfaces supporting insulation tests up to 1250kV AC.
Electric Field Simulation Optimized Tooling
Electric Field Simulation Optimized Tooling: HV shielding and stress-grading electrodes customized per test object, optimized by 3D field simulation to reproduce the field inside GIS.
Ultra-Low PD Background ≤ 2 pC
Ultra-Low PD Background ≤ 2 pC: Completely metal-enclosed layout ensuring ultra-sensitive partial discharge measurement.
High-Efficiency Clamping
High-Efficiency Clamping: Rapid mechanical clamping mechanism and quick-access door shorten cycle times in mass production.
Application Record
Application Record: In operation at insulator and GIS manufacturers including Shenma, XD and Sieyuan.
Compatible Substation Apparatus
Gas-Insulated Switchgear (GIS) basin insulators & support insulatorsHigh-voltage circuit breaker insulating cylinders & operating rodsPower transformers and high-voltage bushing insulation componentsResearch institutes and third-party high-voltage test laboratories
Power Frequency Withstand Voltage Test System Materials & Manufacturing Process
Metal-Clad SF6 Insulated Test Vessel
Welded pressure enclosure for designs up to 0.5 MPa; confirm design pressure, leak-test method and acceptance limit for the model.
Electric Field Grading Shield Assemblies
Mirror-polished aluminum shielding electrodes designed via finite-element electric field simulations to suppress corona and stray discharge.
Digital Measurement & Automated Interlock Console
Integrated PLC and high-precision AC peak voltmeter with automatic voltage boost, timing, flashover trip, and gas pressure interlock.
Engineering Inquiry Draft
Request Quotation for Power Frequency Withstand Voltage Test System
Enter your requirements and send them to our sales desk. If online sending is unavailable, you get an email draft instead.
Power Frequency Withstand Voltage Test System: FAQ
- What voltage and current range does the Power Frequency Withstand Voltage Test System cover?
- Catalogue voltage range: 300kV ～ 1250kV; current range: 1A ～ 5A. Confirm the rating of the specific model and drawing.
- What insulation or construction is used?
- SF6 Gas-Insulated / Metal-Clad Enclosed.
- Which standards are referenced?
- Catalogue standard reference: GB/T 16927.1 / IEC 60060-1 / IEC 62271-203 / DL/T 555. Request type-test evidence for the specific model.
- Is a product catalogue available?
- Yes. GIS High-Voltage Testing Equipment Catalog.pdf can be downloaded from this page.
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