冲击电压发生器

产品用途

冲击电压发生器主要用来检验和试验各种高压电气设备在雷电和操作过电压下绝缘性能试验，是供配电系统、电力设备制造厂、科研部门和高等院校等部门必备试验设备。它主要用于电力设备等试品进行雷电冲击电压全波、雷电冲击截波、陡波和操作冲击电压波等冲击电压试验和研究。适用用于绝缘子、避雷器、高压开关、断路器、变压器、电力电缆等的冲击耐压试验。

产品技术参数

产品特点

成套装置配套完整，电压等级齐全。

通常采用G型、E型、H型三种系列的主回路设计。

采用低速齿轮齿条传动机构调整各级球隙，不仅噪声、磨损小，而且定位快速、准确。

采用弹簧压接、方便拨插的调波电阻固定机构，使调波方便，操作简单。

采用自动触发装置，使球隙具有20%以上的触发范围，保证同步性能好，动作可靠。

采用恒流充电方式，充电电压稳定，不稳定度不大于±1%。

电阻采用无感绕制方式，保证整体回路电感小。

采取带阻滤波措施时，在大容量负载下仍然产生标准冲击波,负载能力大。                                          

电压利用系数高，雷电波不低于85%，操作波不低于70%。

采用自动钢带装置将主电容器短路接地。

采用计算机控制系统技术，自动化程度高，抗干扰能力强。

Product Usage

The impulse voltage generator is mainly used to inspect and test the insulation performance of various high-voltage electrical equipment under lightning and switching overvoltage, and is provided for distribution

Necessary testing equipment for electrical systems, power equipment manufacturers, scientific research departments, and higher education institutions. It is mainly used for testing products such as power equipment

Conduct lightning impulse voltage tests and research on full wave, chopped wave, steep wave, and switching impulse voltage waves. Suitable for insulation

Impulse withstand voltage tests for transformers, lightning arresters, high-voltage switches, circuit breakers, power cables, etc.

Product technical parameters

Product Features

The complete set of equipment is complete and the voltage level is complete.

Usually, three series of main circuit designs are used: G-type, E-type, and H-type.

Adopting a low-speed gear rack transmission mechanism to adjust the ball clearance at all levels not only reduces noise and wear, but also enables fast and accurate positioning.

The fixed mechanism of the adjustable resistor with spring compression and convenient insertion makes the adjustment convenient and easy to operate.

Adopting an automatic triggering device, the ball gap has a triggering range of over 20%, ensuring good synchronization performance and reliable action.

Adopting constant current charging method, the charging voltage is stable and the instability is not greater than ± 1%.

The resistor adopts a non-inductive winding method to ensure that the overall circuit inductance is small.

When adopting bandstop filtering measures, standard shock waves are still generated under high capacity loads, resulting in high load capacity.

The voltage utilization coefficient is high, with lightning waves not less than 85% and operating waves not less than 70%.

Use an automatic steel strip device to short-circuit and ground the main capacitor.

Adopting computer control system technology, it has a high degree of automation and strong anti-interference ability.

The use of a digital measurement and analysis system for shock waveforms and a computer online processing system for shock test data has high measurement accuracy.

This set of products can generate the following standard waveforms: standard lightning impulse voltage full wave 1.2 ± 30% us/50 ± 20% us; Standard operating shock Voltage wave 250 ± 20% us/2500 ± 60% us; Lightning cutoff time 2-6us; Standard steep wave steepness above 1000kV/us.

Main components of the product

Impulse voltage generator body

Charging device

Weakly damped capacitive voltage divider

control system

measurement system

Product optional components

Steeping device (insulator test)

Chopping device (transformer type product test)

Special impulse waveform matching resistor

Modulation capacitor and inductance

Diverter

Mobile gas chassis

Other required components本套产品可产生以下几种标准波形：标准雷电冲击电压全波 1.2±30%us /50±20%us；标准操作冲击

电压波 250±20%us /2500±60%us；雷电截波截断时间2-6us；标准陡波陡度1000kV/us以上。

产品主要部件

冲击电压发生器本体

充电装置

弱阻尼电容分压器

控制系统

测量系统

产品可选部件

陡化装置（绝缘子试验）

截波装置（变压器类产品试验）

特殊冲击波形匹配电阻

调波电容、电感

分流器

移动气体底盘

其他需要的部件