The HZG1101 Variable Frequency Series Resonance Test System is
designed for AC withstand voltage testing of power cables,
transformers, GIS, switchgear, generators, busbars and other
high-voltage electrical equipment.
The system uses variable-frequency series resonance technology to
generate high AC test voltage with relatively low input power. By
adjusting the resonance frequency according to the capacitance of
the test object, it provides stable and efficient AC withstand
testing. The system consists of a variable-frequency power supply,
excitation transformer, high-voltage reactor and capacitive voltage
divider, with reactor quantity, test voltage and system capacity
configurable to the test object.
Technical Parameters
| Parameter | Specification |
|---|
| Frequency Range | 20–300Hz |
| Variable-Frequency Power | 5.5–500kW |
| Reactor Working Voltage | Up to 1000kV |
| Reactor Inductance | 30–600H |
| Voltage Divider Range | 10–1000kV |
| System Quality Factor | Q > 50 |
| System Measurement Accuracy | ≤1.5% |
| Output Voltage Waveform Distortion | <1.0% |
| Continuous Working Time | 15min at rated conditions |
| Input Power Supply | 3-phase 380V ±5% / single-phase 220V ±5% |
Test voltage, capacity, reactor quantity and other specifications
can be customized according to the test object and project
requirements.
Application Scenarios
- Power Cable Testing — AC withstand testing of medium- and
high-voltage cables
- Transformer Testing — AC withstand testing of power transformers
- GIS & Switchgear Testing — Testing of GIS, circuit breakers and
switchgear
- Generator Testing — AC withstand testing of generator windings
- Substation Testing — Commissioning and maintenance of high-voltage
equipment
- Field Testing — On-site AC withstand testing with modular equipment
configuration
Key Features
Variable-Frequency Series Resonance
Generates high AC test voltage with relatively low input power by
adjusting resonance frequency to the test object's capacitance.
Automatic Resonance Point Search
Automatically scans the selected frequency range and locates the
resonance point.
Application-Based Configuration
Configured according to the actual test object rather than a fixed
standard configuration.
Multiple Protection Functions
Overvoltage, overcurrent, detuning, flashover, and emergency stop
protection.
Modular System Design
Reactor quantity, transformer capacity, and accessories can be
combined to match different test voltage and load requirements.
OEM/ODM Customization
Logo & Branding
Your company logo and branding can be applied to the unit and its
interface.
Appearance & Case Color
Case color and exterior finish can be adjusted to match your brand
or product line.
Functional Parameters
Test voltage, system capacity, reactor configuration and other
functional settings can be customized to your specification.
Software UI & Language
Control interface language and layout can be customized for your
target market.
MOQ & Lead Time
MOQ of 1 unit for logo/appearance customization. Lead time is
standard production plus 1–2 weeks for customized units.
Get Your Resonance Test Solution
Tell us your requirements and our engineers will recommend the
right configuration.
- Test Object
- Required Test Voltage
- Cable Length / Capacitance
- Testing Standard
- Test Location
- Available Power Supply
Request a
Quote
Why Choose HKVTEST
HKVTEST is a National High-Tech Enterprise with over 16 years of
experience manufacturing electrical and power testing equipment,
holding 10+ patents. Every system is factory-tested before
shipment, and we provide complete technical support from equipment
selection through configuration and operation, along with OEM/ODM
customization. We've supplied testing equipment to customers across
Rwanda, Tanzania, the Philippines, Vietnam, and India.
FAQ
What can the HZG1101 test?
It can be configured for AC withstand testing of power cables,
transformers, GIS, switchgear, generators, busbars and other
high-voltage equipment.
Can it automatically find the resonance point?
Yes. The system can automatically scan the selected frequency range
and locate the resonance point.
How is the reactor configuration selected?
It depends mainly on the required test voltage, test object
capacitance and operating frequency. For power cables, cable length
is also an important factor.
What information is needed for a quotation?
The test object, required test voltage, cable length/capacitance,
testing standard and test location.
Contact Us
Need Professional Advice?
Our engineers can recommend the right system configuration based on
your test object, required test voltage, cable length or
capacitance, and site conditions. Contact us for technical
recommendations and product selection assistance.
WhatsApp: +86 180 7153 1810
Email: fionahuang60@gmail.com
Website: www.hkvtest.com
About HKVTEST
HKVTEST is the global brand of Wuhan Hongzhi Gaocetest Electrical
Technology Co., Ltd., a National High-Tech Enterprise with over 16
years of experience in electrical testing equipment R&D and
manufacturing, holding 10+ patents.
