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.
OIG300kV ～ 4200kV
Review model drawings and test evidence
GIS Testing & Diagnostic Equipment
Open-Type Lightning Impulse Generator
300kV-4200kV Open-Type Multi-Stage Marx Impulse Voltage Generator for High-Voltage Transformers & GIS
Rated Voltage300kV ～ 4200kV
Rated CurrentN/A
Insulation TypeMulti-stage Open Tower / Marx Generator
Catalog standardGB/T 16927.1 / IEC 60060-1 / IEEE Std 4 / ANSI C68.1
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.
Product Technical Overview
The Open-Type Lightning Impulse Generator is designed for lightning impulse voltage testing of high-voltage electrical equipment, including power transformers and Gas-Insulated Switchgear (GIS).
Featuring an open, multi-stage tower structure, the system generates high-voltage impulse waveforms for evaluating the insulation performance of electrical equipment under simulated lightning and switching impulse conditions.
Key Features:
• Adopt multi-level tower-type open structure with small loop inductance and strong load capacity
• Accurately simulate lightning impulse scenarios and meet the insulation performance test requirements of high-voltage equipment such as transformers and GIS
• Convenient wave modulation operation equipped with plate-shaped non-inductive wave modulation resistors and spring crimp joints
• Supports multi-waveform output such as standard full lightning impulse wave, chopped wave, and switching impulse wave
• Open-type, multi-stage structural design with configurable energy levels (100kJ~420kJ)
// CUSTOM SOURCING & ENGINEERING SPECInquire Now
EONOVA provides complete turnkey engineering solutions for open-type lightning impulse generators, including generator towers, voltage dividers, chopping gaps, and digital measuring systems. EONOVA – Your Sourcing Partner for High-Voltage Testing Equipment from China.
Compatible Substation Apparatus
Power transformers and shunt reactors lightning impulse testsGas-Insulated Switchgear (GIS) and circuit breakersHigh-voltage bushings, surge arresters, and insulator stringsNational high-voltage testing centers and university laboratories
Open-Type Lightning Impulse Generator (OIG) 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 Voltage | 300 kV ～ 4200 kV (Modular customizable) |
| Rated Energy | 100 kJ ～ 420 kJ |
| Stage Voltage | 100 kV / 150 kV / 200 kV per stage |
| Lightning Full Wave | 1.2 ± 30% / 50 ± 20% μs (Overshoot ≤ 5%) |
| Switching Impulse Wave | 250 ± 20% / 2500 ± 60% μs |
| Chopped Wave | 2 ～ 6 μs electronic multi-sphere chopping gap |
| Wave Tuning Method | Plate-shaped non-inductive resistors with fast spring-loaded clamps |
| Control Console | Fiber-optic isolated intelligent automatic digital impulse control desk |
Custom Engineering & Flange Dimensions Note:
Dimensions, interfaces and replacement compatibility require approved drawings and technical review.
Open-Type Lightning Impulse Generator Core Engineering Advantages
300kV-4200kV Ultra-Wide Voltage
300kV-4200kV Ultra-Wide Voltage: Modular multi-stage Marx tower configurable for full range from medium voltage to UHV labs.
Low Loop Inductance
Low Loop Inductance: Minimizes waveform overshoot and enables testing of high-capacitance transformers and long GIS busbars.
Multi-Waveform Output
Multi-Waveform Output: Supports standard lightning full wave (1.2/50 μs), chopped wave (2~6 μs), and switching wave (250/2500 μs).
Spring Crimp & Non-Inductive Resistors
Spring Crimp & Non-Inductive Resistors: Plate-shaped resistors with spring joints enable fast, safe, and repeatable wave adjustment.
Optically Isolated Digital Console
Optically Isolated Digital Console: Fiber-optic control ensures safety and immunity to electromagnetic interference.
Compatible Substation Apparatus
Power transformers and shunt reactors lightning impulse testsGas-Insulated Switchgear (GIS) and circuit breakersHigh-voltage bushings, surge arresters, and insulator stringsNational high-voltage testing centers and university laboratories
Open-Type Lightning Impulse Generator Materials & Manufacturing Process
Multi-Stage Marx Tower Structure
High-strength structural steel and insulating composite support columns with integrated spark gaps and automatic grounding solenoids.
Non-Inductive Plate Wave Tuning Resistors
Resistance alloy ribbon on insulating plates; confirm inductance against the circuit design.
Digital Impulse Analysis Measurement System
Multi-channel high-speed digital transient oscilloscope, precision capacitive divider, and compliant peak voltmeter.
Engineering Inquiry Draft
Request Quotation for Open-Type Lightning Impulse Generator
Enter your requirements and send them to our sales desk. If online sending is unavailable, you get an email draft instead.
Open-Type Lightning Impulse Generator: FAQ
- What voltage and current range does the Open-Type Lightning Impulse Generator cover?
- Catalogue voltage range: 300kV ～ 4200kV. Confirm the rating of the specific model and drawing.
- What insulation or construction is used?
- Multi-stage Open Tower / Marx Generator.
- Which standards are referenced?
- Catalogue standard reference: GB/T 16927.1 / IEC 60060-1 / IEEE Std 4 / ANSI C68.1. 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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