Table of Contents

Product Introduction

HF-HG-302 Mini Impulse Voltage Generator complies with standards including TB/T 2653, GB/T17627, GB/T16927, GB14048, GB7251, GB/T16935, IEC61730, GB4706, GB3048, JB/T 7083.
It is mainly used for safety performance (dielectric property) testing of low-voltage assemblies, low-voltage electrical appliances, high & low voltage switches, solar equipment, energy meters, relays, residual current protectors and other products. The impulse output can be controlled by computer, and formal test reports can be printed.

Features

Manual / Auto / Program-controlled modes. Manual mode adjusts impulse voltage via knob; Auto mode adjusts voltage automatically; Program-controlled mode realizes automatic voltage control via computer.
Auto and program modes adopt automatic constant voltage system for precise output control, free from the influence of interval time.
Program control equipped with RS485 interface and protocol. It can build automatic test systems; impulse voltage and parameters can be controlled via computer or network (program trigger).
Supporting batch combined testing through PC software, e.g. 8kV×3 times, 10kV×3 times, up to 50 groups. It feeds back striking times and breakdown voltage; test results can be displayed graphically for intuitive judgment.
Test reports can be printed by computer, showing peak voltage, impulse times, interval time and other data.
Automatic pass/fail judgment based on impulse voltage magnitude and attenuation degree during testing.
Impulse voltage divider interface for oscilloscope to track waveform and monitor output voltage.
12864 LCD simultaneously displays DC voltage, impulse voltage, interval time and impulse counts.
Touch keys, microcomputer control, bilingual Chinese/English panel for export use.
Dual high-voltage source design for positive and negative polarity, delivering more stable, higher voltage and higher efficiency.
Full-range calibration procedure for improved full-scale accuracy.
Built-in multiple standard calibration programs to revise errors during verification.
Dual output: DC voltage and impulse voltage.

Technical Specifications

Item	Parameters
Peak Impulse Output Voltage	20kV Manual mode: 1kV–20kV Auto & Program-controlled mode: 1kV–20kV (calibratable) Accuracy: ±3% Voltage step: 1V
Impulse Voltage Waveform	Front time: 1.2μs±30% Half-value time: 50μs±20%
Breakdown Judgment	Leakage current: adjustable 100mA–5000mA Voltage attenuation: adjustable 0–99%
Interval Time	1–9999 s
Impulse Times	1–9999 shots / unlimited continuous impulses
Polarity	Positive / Negative / Alternating positive-negative
Overall Dimension	450mm×380mm×240mm
Weight	Approx. 12 kg

Key Features (Two-column layout for website)

Features	Description
Three operation modes	Manual, automatic and computer program control optional
Constant voltage control	Stable output, not affected by test interval
RS485 communication interface	Supports building automatic test system
Batch combined test	Up to 50 groups of preset test sequences
Automatic judgment function	Auto determine pass/fail according to voltage attenuation & leakage current
Bilingual operation panel	Chinese & English menu, convenient for export
Dual high voltage source	Stable positive / negative / alternating polarity output
DC & impulse dual output	Meet diversified dielectric test requirements

FAQ — Mini Impulse Voltage Generator

Q1: What is this impulse voltage generator used for?

A: It performs dielectric safety tests on low-voltage assemblies, electrical appliances, high/low voltage switches, solar equipment, meters, relays and residual current protectors.

Q2: Which standards does the instrument comply with?

A: It meets TB/T 2653, GB/T 17627, GB/T 16927, GB14048, IEC61730 and other domestic and international standards.

Q3: What operation modes are available?

A: Three modes: Manual, Automatic and Program-controlled.
Manual: Adjust impulse voltage by knob;
Auto: Voltage automatically regulated;
Program-controlled: Controlled remotely by computer.

Q4: What advantages does the auto constant voltage system bring?

A: It achieves finer voltage control and keeps output stable without being affected by the test interval time.

Q5: Does it support automated system integration?

A: Yes. It has RS485 interface and communication protocol, supporting program trigger and construction of automatic test lines.

Q6: Can it carry out batch combined testing?

A: Yes. PC software supports up to 50 groups of sequential tests. It feeds back breakdown times and voltage values, and supports graphical result display.

Q7: How is pass/fail judgment realized?

A: The instrument automatically judges test results according to set leakage current threshold and voltage attenuation ratio.

Q8: Can I observe the impulse voltage waveform?

A: An impulse divider interface is reserved for connecting an oscilloscope to monitor real-time voltage waveform.

Q9: What is the output voltage range and accuracy?

A: Peak impulse voltage: 1kV~20kV, accuracy ±3%, adjustable step of 1V.

Q10: What standard impulse waveform does it produce?

A: Lightning impulse waveform: front time 1.2μs±30%, half-value time 50μs±20%.

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