Table of Contents

Product Introduction

The HF-HG-301 DC High Voltage Generator is designed for power utilities and industrial enterprises to conduct DC withstand voltage tests and leakage current tests on lightning arresters, cables and high-voltage equipment.
Developed in accordance with Chinese energy industry standards, it has passed inspection by national high voltage metrology station and complies with ZGF24003-90 General Technical Conditions for Portable DC High Voltage Generators. Some indicators exceed the requirements of GB11032-89 Metal Oxide Lightning Arresters without Gaps.

Adopting new technologies, new materials and new components, the ZGS-C series features high output power, compact size and light weight. It is equipped with reliable overvoltage, overcurrent and zero-position interlock protection, 0.75 times voltage locking function, as well as a time relay for timing audible alarm during tests. The unit is portable, easy to operate, safe and reliable, especially suitable for on-site power tests.

Technical Parameters

1. Technical Conditions

Power Supply: AC220V±10%, 50Hz±1%
Output voltage indication accuracy: Class <1.0
Output current indication accuracy: Class <1.0
0.75 times output voltage indication accuracy: Class <1.0, with locking function

2. Operating Conditions

Relative humidity: ≤85% at 25°C, no condensation
Duty cycle: Intermittent operation for 30 minutes continuously
Ambient temperature: -10 ~ 40°C
Altitude: ≤1500 m

3. Protection Functions

Internal overvoltage protection, internal overcurrent protection
External adjustable overvoltage protection, external overcurrent / breakdown protection
Internal power protection
Non-zero start protection
Timing audible alarm

Model Specification Table

Model	Rated DC Output Voltage(kV)	Rated DC Output Current(mA)	Rated Output Power(W)	Adjustable Overvoltage Range(kV)	Weight(kg)	Voltage Multiplier Height(m)
ZGF-60	60	2	120	22kV~60kV	16	0.5
ZGF-60	60	5	300	22kV~60kV	16	0.5
ZGF-60	60	10	600	22kV~60kV	16	0.5
120	120	2	240	42kV~120kV	20	0.8
120	120	5	600	42kV~120kV	20	0.8
120	120	10	1200	42kV~120kV	20	0.8
200	200	2	400	72kV~200kV	26	1.2
200	200	5	1000	72kV~200kV	26	1.2
200	200	10	2000	72kV~200kV	26	1.2
300	300	2	600	100kV~300kV	31	1.7
300	300	5	1500	100kV~300kV	31	1.7
300	300	10	3000	100kV~300kV	31	1.7

Key Features (Two-column layout for website)

Features	Description
Portable structure	Compact and lightweight design for field on-site testing
Multiple built-in protections	Overvoltage, overcurrent, non-zero start and breakdown protection
0.75U voltage locking	Support 0.75 times rated voltage hold function
Timing audible alarm	Equipped with time relay for scheduled sound alert
High measuring precision	Voltage & current indicator accuracy better than Class 1
Complete standard compliance	Meets national standards for portable DC hipot tester

FAQ — DC High Voltage Generator

Q1: What is the DC High Voltage Generator used for?

A: It performs DC withstand voltage test and leakage current test on lightning arresters, power cables and various high voltage electrical equipment for power industry and industrial mines.

Q2: Which standards does this instrument comply with?

A: It conforms to ZGF24003-90. Some technical indicators exceed GB11032-89 standard for gapless metal oxide arresters, and it has passed national high voltage metrology verification.

Q3: What is the power supply requirement?

A: Input power supply: AC220V±10%, 50Hz±1%.

Q4: What is the accuracy of voltage and current display?

A: Output voltage and current indication accuracy: better than Class 1; 0.75 times voltage display also reaches Class 1 with locking function.

Q5: What are the available standard models?

A: Main voltage grades: 60kV,120kV,200kV,300kV; each supports 2mA /5mA /10mA different output current options.

Q6: What protection functions are equipped?

A: Internal & external overvoltage protection, internal & external overcurrent/breakdown protection, power protection, non-zero start protection.

Q7: What is the 0.75 times voltage locking function for?

A: It can keep 75% rated DC voltage steady, commonly used for long-term aging test of lightning arresters.

Q8: Does it support timing reminder during testing?

A: Yes. Built-in time relay to realize timing audible alarm as required.

Q9: What are the allowable working conditions?

A: Ambient temperature: -10℃ ~ 40℃; relative humidity ≤85% (25℃, no condensation); altitude below 1500m.

Q10: What is the continuous working mode?

A: Intermittent operation, maximum continuous working time 30 minutes.

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HF-HG-301 DC High Voltage Generator