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GDCY-20B Digital Intelligent Basic Impulse Voltage Tester
GDCY-20B Digital Intelligent Basic Impulse Voltage Tester (±20kV Peak Impulse, 0-±22kV DC) with 1.2/50μs Standard Lightning Impulse, ±3% Voltage Accuracy, Manual/Auto/Computer Programmable Modes, LCD Display, Touch Buttons, Leakage Current/Voltage Attenuation Breakdown Judgment, for SPD, Low-Voltage Appliance, Electronic Component, EV Charger Impulse Withstand Voltage Test.
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The GDCY-20B is a cost-effective, basic-type desktop impulse voltage test systemexclusively designed for impulse withstand voltage tests of low-voltage electrical equipment and surge protective devices (SPD). It fully complies with IEC 61000-4-5:2014 and GB/T 17626.5-2019 standards, adopting advanced high-voltage solid-state switching technology to generate stable and repeatable 1.2/50μs standard lightning impulse waveforms.
The system features an integrated desktop design with a built-in standard impulse capacitor, supporting both DC withstand voltage test and impulse withstand voltage test. Equipped with a 128×64 LCD display and intuitive touch buttons, it supports three operation modes: manual, automatic, and computer programmable. It has dual breakdown judgment functions (leakage current and voltage attenuation) to automatically determine test results. With comprehensive safety protection including over-voltage, over-current, and emergency stop, it ensures safe and reliable operation in production lines and laboratories. Ideal for 3C certification tests, factory quality control, and basic research experiments of SPDs, low-voltage switchgear, electronic components, electric vehicle chargers, and household appliances.
Specifications
| Parameter | Specification |
|---|---|
| Impulse Output Voltage | ±1kV–±20kV peak (1V step, ±3% accuracy) |
| DC Output Voltage | 0–±22kV DC (continuous adjustable) |
| Main Impulse Capacitance | 10nF (standard) |
| Rated Energy | 2J |
| Output Waveform | 1.2/50μs standard lightning impulse full wave |
| Waveform Parameters | T1=1.2μs±30%, T2=50μs±20% |
| Peak Oscillation | <5% |
| Waveform Repeatability | ≤±1% |
| Charging Voltage Accuracy | ≤±3% (full range, calibratable) |
| Impulse Voltage Measurement Accuracy | ≤±3% |
| Charging Voltage Instability | <±0.5% |
| Trigger Delay | <1μs |
| Repetition Rate | 1 impulse every 1–99 seconds (adjustable, default 5s) |
| Polarity | Positive, Negative, Positive-Negative Alternating |
| Operation Modes | Manual mode, Automatic mode, Computer programmable mode |
| Breakdown Judgment | Leakage current (30mA–1200mA adjustable), Voltage attenuation (0%–99% adjustable) |
| Display | 128×64 LCD display |
| Communication Interface | RS485 (standard), USB (optional) |
| Data Management | Test result display and storage, USB export (optional) |
| Protection Functions | Over-voltage, Over-current, Short-circuit, Emergency stop, Ground detection, Automatic discharge |
| Dimensions (mm) | 450×380×240 (W×H×D) |
| Weight | ~12kg |
| Power Supply | Single-phase AC220V±10%, 50Hz |
| Power Consumption | ≤300VA |
| Operating Temperature | 0℃ ~ +40℃ |
| Operating Humidity | ≤80%RH (non-condensing) |
| Altitude | ≤2000m |
| Compliance | IEC 61000-4-5:2014, GB/T 17626.5-2019, GB/T 18802.1-2020, IEC 61643-11:2011, GB 7251.1-2013 |
Applications
Core Test Objects
- Surge Protective Devices (SPD): Class II, III SPDs (voltage limiting type)
- Low-voltage switchgear: circuit breakers, contactors, relays, distribution boxes
- Electronic components: capacitors, resistors, diodes, transistors
- Electric vehicle chargers: AC chargers, charging piles
- Household appliances: refrigerators, air conditioners, washing machines
- Photovoltaic inverters: small grid-tied inverters
- Wires and cables: low-voltage power cables and wires
- Electricity meters: single-phase and three-phase electricity meters
Typical Usage Scenarios
- Factory quality control: 100% outgoing inspection of finished products
- 3C certification tests: basic safety certification tests for low-voltage products
- On-site testing: field inspection of installed SPDs and electrical equipment
- Small research laboratories: basic insulation performance research
- Technical schools and universities: teaching and demonstration experiments
- Third-party inspection: basic compliance testing
Advantages
DC + Impulse Dual Output
Supports both DC withstand and impulse withstand tests → one system covers two common test requirements
Dual Breakdown Judgment
Leakage current and voltage attenuation dual judgment → accurate and reliable test result determination
Three Flexible Operation Modes
Manual, automatic, and computer programmable modes → meets different test requirements from simple to complex
Ultra-Compact & Lightweight
12kg ultra-lightweight desktop design → easy to move and transport between production lines
Comprehensive Safety Protection
Multiple protection layers + automatic discharge → maximum safety for operators and test equipment
High Cost-Effectiveness
Optimized for basic test requirements, providing excellent performance at a competitive price → ideal for small and medium-sized enterprises
FAQ
Q: What is the difference between GDCY-20B and GDCY-20P?
A:
- GDCY-20B (Basic Type): 128×64 LCD display + touch buttons, ±3% accuracy, 12kg weight, cost-effective, suitable for basic factory quality control
- GDCY-20P (Advanced Type): 7-inch color touch screen, ±1% accuracy, 25kg weight, PDF report generation, suitable for certification laboratories and high-end manufacturers Both generate 1.2/50μs standard lightning impulse wave and meet IEC 61000-4-5 requirements.
Q: What waveforms can GDCY-20B generate?
A: It generates 1.2/50μs standard lightning impulse full wave as standard, which is the most commonly used waveform for low-voltage equipment impulse tests according to IEC 61000-4-5. It also supports 0–±22kV DC withstand voltage test.
Q: What is the breakdown judgment function?
A: It has two breakdown judgment methods:
- Leakage current judgment: Alarms when the leakage current exceeds the set threshold (30mA–1200mA)
- Voltage attenuation judgment: Alarms when the impulse voltage peak drops below the set percentage (0%–99%) The system automatically determines pass/fail and stops the test when breakdown occurs.
Q: Does it support computer control?
A: Yes. It has an RS485 communication interface and comes with dedicated Windows-based control software (optional) for remote operation, parameter setting, and data analysis.
