供应

介电强度50KV电压击穿测试仪  介电强度是一种材料作为绝缘体时的电强度的量度.它定义为试样被击穿时,单位厚度承受的最大电压,表示为伏特每单位厚度.物质的介电强度越大,它作为绝缘体的质量越好.

介电强度，是材料抗高电压而不产生介电击穿能力的量度，将试样放置在电极之间，并通过一系列的步骤升高所施加的电压直到发生介电击穿，以次测量介电强度。尽管所得的结果是以kv/mm为单位的，但并不表明与试样的厚度无关。因此，只有在试样厚度相同的条件下得到各种材料的数据才有可比性。

介电强度50KV电压击穿测试仪  软件功能：

1、试验过程中可动态绘制出试验曲线，试验的曲线可以多种颜色叠加对比，局部放大，曲线上任意一段可进行区域放大分析；

2、可对试验数据进行编辑修改，灵活适用；

3、试验条件及测试结果等数据可自动存储；

4、试验报告格式灵活可变，适用于不同用户的不同需求；

5、可对一组试验中曲线数据的有效与否进行人为选定；

6、试验结果数据可导入EXECL、WORD文档编辑；

7、软件设备人员管理功能，试验人员可设置自己的试验项目和试验参数，设置自己的试验内容后别人无法进入程序；

8、过电流保护装置有足够的灵敏度，能够保证试样击穿时在0.1s内切断电源；

9、仪器运行的持久性:仪器可连续运行使用，不需为保护仪器而定期停机。

电压击穿试验仪,由电脑控制，通过我公司自主研发的全新智能数字集成电路系统与软件控制系统两部分来完成，使升压速率真正做到匀速、准确，并能够准确测出漏电电流的数据。

本仪器在试验过程中可对升压击穿过程绘制实时曲线，每次试验的升压曲线都由不同颜色构成，试验结束后可叠加对比材料的试验数据重复性。可以随时调取当前及历史试验数据进行查看，编辑及修改实验结果。

可对软件设置密码，生成密码保护，做到专机专人操作，避免无关人员误操作，试验结果编辑修改后打印，方便操作更加人性化。

技术参数

01、输入电压： 交流220 V

02、输出电压： 交流0--50 KV  直流0—70 KV   

03、电器容量：5KVA

04、高压分级：0--5KV；0-10KV；0-20KV

05、升压速率：100V/S  200V/S  500V/S  1000V/S 2500V/S 3000V/S

06、试验方式：直流试验：1、击穿试验2、梯度升压  3、耐压试验

           交流试验：1、击穿试验  2、梯度升压  3、耐压试验

07、击穿判停方式：1、电压判停2、电流判停

08、电压试验精度： ≤1％

09、电极规格： ￠25mm两个   ￠75mm一个

10、主机尺寸：长宽高-800*800*1450（MM）

整机组成：

升压部件：由调压器和高压变压器组成0～50KV的升压部分。动部件：由步进电机均匀调节调压器使加给高压变压器的电压变化。检测部件：由集成电路组成的测量电路。通过信号线把检测的模拟信号和开关信号传给计算机。计算机软件：通过智能电路把由检测设备采集的测控信号传给计算机。计算机根据采集的信息控制设备运行并处理试验结果。试验电极：根据国家标准(1408.1-2006)随设备提供三个电极，具体规格为：Ф25mm?25mm两个；Ф75mm?25mm一个。（订做除外）

绝缘介电强度试验与绝缘电阻测试

绝缘介电强度试验是在相互绝缘的部件之间或绝缘的部件与地之间,在规定时间内施加规定的电压,以此来确定电机在额定电压下能否安全工作,能否耐受由于开关、浪涌及其它类似现象所导致的过电压的能力,从而评定电机绝缘材料或绝缘间隙是否合适。如果电机有缺陷,则在施加试验电压后,会产生击穿放电或损坏。击穿放电表现为飞弧(表面放电)、火花放电(空气放电)或击穿(击穿放电)现象。过大的漏电流可能引起电参数或物理性能的改变 。

绝缘介电强度试验与绝缘电阻测试是不能等同的。清洁、干燥的绝缘体尽管具有高的绝缘电阻,但却可能发生不能经受绝缘介电强度试验的故障;反之,一个脏的、损伤的绝缘体,其绝缘电阻虽然低,但在高电压下也可能不会被击穿。由于绝缘部件是由不同材料制成或是由不同材料合成的,它们的绝缘电阻各不相同。因此,绝缘电阻的测试不能完全代表对清洁度或无损伤程度的直接量度。但是,这种测试对确定高温、潮湿、污物、氧化或挥发性材料等对绝缘特性影响程度是极为有益的 。

事实上,一台由于过热而使绝缘材料已经老化变脆的电机,其绝缘电阻仍可高达100MΩ,但却无法通过绝缘介电强度试验。绝缘电阻测试对绝缘材料受潮特别敏感,对绝缘材料老化则显得力不从心。

绝缘介电强度试验一般采用50Hz正弦波交流电,而绝缘电阻测试均采用直流电。

满足标准：

仪器依据以下标准中对击穿电压部分的要求制造

GB/T 1408-2006绝缘材料电气强度试验方法

GB/T1695-2005硫化橡胶工频电压击穿强度和耐电压强度试验

GB/T3333电缆纸工频电压击穿试验方法

HG/T 3330绝缘漆漆膜击穿强度测定法

GB12656电容器纸工频电压击穿试验方法

ASTM D149固体电绝缘材料在工业电源频率下的介电击穿电压和介电强度的试验方法.

电气强度（Dielectric strength），指击穿电压比上击穿样品的厚度等于样品的电气强度。

在物理学中，术语电气强度具有以下含义：

绝缘材料中，纯材料在理想条件下可以承受的最大电场而不会损坏（即不会经历其绝缘性能的失效）。

对于电介质材料和电极的具体配置，导致击穿的最小施加电场（即，所施加的电压除以电极分离距离）。

材料的理论电气强度是大块材料的固有属性，并且与施加电场的材料或电极的构造无关。这种“固有介电强度”对应于在理想实验室条件下使用纯物质测量的值。在击穿时，电场释放束缚的电子。如果施加的电场足够高，来自背景辐射的自由电子可能会加速到在被称为雪崩击穿的过程中与中性原子或分子碰撞期间释放额外电子的速度。击穿发生得相当突然（通常在几纳秒），导致通过材料形成导电路径和破坏性放电。对于固体材料，击穿事件严重降低，甚至破坏其绝缘能力。

适用材料：

主要适用于固体绝缘材料如：电线套管、树脂和胶、浸渍纤维制品、云母及其制品、塑料薄膜、陶瓷、玻璃、绝缘漆、硫化橡胶、电缆纸、绝缘漆漆膜、硬质橡胶、纸板等绝缘介质在空气或液体介质中，测量工频（48~62Hz）或对应直流电压下击穿强度和耐电压时间。适用于连续均匀升压或逐级升压的方式，对试样施加交流/或直流，电压直至击穿，测量击穿电压值，计算试样的击穿强度；用迅速升压的方法，将电压升到规定值，保持一定的时间试样不击穿，定此时规定值为试样的耐电压值。软件系统操作方便，性能稳定，安全可靠。

基本功能：

   电压击穿试验仪由电脑控制，数据采集方式通过光电隔离，有效解决试验过程中的抗干扰问题，软件操作使用方便，能够实时显示动态曲线，同时升压速率无级可调，可以根据自己的需要进行升压速率调节，调节范围在0.1KV-3KV/S，使升压速率真正做到匀速、准确，并能够准确测出漏电电流的数据。可实时绘制试验曲线，显示试验数据，判断准确，并可保存，分析，打印试验数据。并且能够自动判别试样击穿并采集击穿电压数据及泄露电流，同时能够在击穿的瞬间电压迅速降低自动归零。软件系统操作方便，性能稳定，安全可靠。

试验方式：

1、绝缘试样空气中击穿、耐压试验或阶梯试验；

2、绝缘试样浸油中击穿、耐压试验或阶梯试验；

注：根据用户要求，可定制其他试验方式。

安全注意事项：开机之前，敬请仔细阅读本使用指南，以防止出现对操作人员的意外伤害或对仪器的损坏等的事件。操作前，请阅读“安装与设置”，保证对仪器各部件的正确安装与连接。在第一次操作前，务必请有操作经验的人员进行指导，防止误操作造成意外事件的发生。电击危险： 确保在安装或维修该仪器之前使所有导线断电，防止在带电情况下，对人员或设备造成伤害。

Dielectric strength is a measure of the electrical strength of a material as an insulator It is defined as the maximum voltage per unit thickness that a sample can withstand when it is broken down, expressed in volts per unit thickness The higher the dielectric strength of a substance, the better its quality as an insulator

Dielectric strength is a measure of a material's ability to withstand high voltage without generating dielectric breakdown. The sample is placed between electrodes and the applied voltage is increased through a series of steps until dielectric breakdown occurs, in order to measure the dielectric strength. Although the results obtained are in kV/mm units, it does not indicate that they are independent of the thickness of the sample. Therefore, comparability of data for various materials can only be obtained under the condition of the same sample thickness.

Software features:

1. During the experiment, the test curve can be dynamically drawn, and the test curve can be stacked and compared in multiple colors, with local magnification. Any section on the curve can be analyzed for regional magnification;

2. Can edit and modify experimental data, flexible and applicable;

3. The experimental conditions and test results can be automatically stored;

4. The format of the test report is flexible and adaptable, suitable for the different needs of different users;

5. The validity of curve data in a set of experiments can be artificially selected;

6. The experimental result data can be imported into EXECL and WORD documents for editing;

7. The software equipment personnel management function allows testers to set their own test items and parameters. After setting their own test content, others cannot access the program;

8. The overcurrent protection device has sufficient sensitivity to ensure that the power supply is cut off within 0.1 seconds when the sample is broken down;

9. Durability of instrument operation: The instrument can operate continuously without the need for regular shutdowns to protect it.

The voltage breakdown tester is controlled by a computer and is completed through our company's independently developed new intelligent digital integrated circuit system and software control system, ensuring that the boosting rate is truly uniform and accurate, and can accurately measure the data of leakage current.

This instrument can draw real-time curves for the voltage breakdown process during the experiment. The voltage rise curve of each experiment is composed of different colors, and after the experiment, the repeatability of the test data of the comparative material can be superimposed. You can access current and historical experimental data at any time to view, edit, and modify experimental results.

Passwords can be set for the software, password protection can be generated, and dedicated personnel can operate it to avoid accidental operations by unrelated personnel. The test results can be edited, modified, and printed for more convenient and user-friendly operation.

technical parameter

01. Input voltage: AC 220 V

02. Output voltage: AC 0-50 KV DC 0-70 KV

03. Electrical capacity: 5KVA

04. High voltage classification: 0-5KV; 0-10KV; 0-20KV

05. Boost rate: 100V/S 200V/S 500V/S 1000V/S 2500V/S 3000V/S

06. Test method: DC test: 1. Breakdown test 2. Gradient boost test 3. Voltage withstand test

Communication test: 1. Breakdown test 2. Gradient boosting test 3. Voltage withstand test

07. Breakthrough detection and stopping method: 1. Voltage detection and stopping 2. Current detection and stopping

08. Voltage test accuracy:≤1%

09. Electrode specifications: Two pieces of ? 25mm and one piece of ? 75mm

10. Host size: length, width, height -800 * 800 * 1450 (MM)

Overall composition:

Boosting component: The boosting part of 0-50KV is composed of a voltage regulator and a high-voltage transformer. Moving parts: The voltage regulator is uniformly adjusted by a stepper motor to change the voltage applied to the high-voltage transformer. Detection component: a measurement circuit composed of integrated circuits. Send the detected analog signals and switch signals to the computer through signal lines. Computer software: transmits the measurement and control signals collected by the detection equipment to the computer through intelligent circuits. The computer controls the operation of the equipment based on the collected information and processes the test results. Test electrodes: According to the national standard (1408.1-2006), three electrodes are provided with the equipment, with specific specifications as follows:ФTwo 25mm x 25mm;ФOne 75mm x 25mm. (Excluding customization)

Insulation dielectric strength test and insulation resistance test

The insulation dielectric strength test is the application of a specified voltage within a specified time period between insulated components or between insulated components and ground, in order to determine whether the motor can operate safely at rated voltage and whether it can withstand overvoltage caused by switches, surges, and other similar phenomena, and to evaluate whether the insulation material or insulation gap of the motor is suitable. If the motor has defects, breakdown discharge or damage may occur after applying the test voltage. The breakdown discharge is manifested as flashover (surface discharge), spark discharge (air discharge), or breakdown (breakdown discharge) phenomenon. Excessive leakage current may cause changes in electrical parameters or physical properties.

The insulation dielectric strength test and insulation resistance test cannot be equated. Although clean and dry insulators have high insulation resistance, they may fail to withstand insulation dielectric strength tests; On the contrary, a dirty and damaged insulator, although its insulation resistance is low, may not be broken down under high voltage. Due to the fact that insulation components are made of different materials or synthesized from different materials, their insulation resistance varies. Therefore, the testing of insulation resistance cannot fully represent a direct measurement of cleanliness or undamaged degree. However, this type of test is crucial for determining the impact of high temperature, humidity, dirt, oxidation, or volatile materials on insulation

Test method:

1. Air breakdown, withstand voltage test or step test for insulation samples;

2. Electrical breakdown, withstand voltage test or step test of insulation samples immersed in oil;

Note: Other testing methods can be customized according to user requirements.

主要产品有：

拉力试验机，                     塑料球压痕硬度计

维卡热变形试验仪，               体积表面电阻率测试仪

海绵泡沫落球回弹试验机，         海绵泡沫拉伸强度试验机

耐压试验机，                  介电常数测试仪

海绵泡沫压陷硬度测验仪，         介质损耗测试仪

海绵泡沫疲劳压陷试验机，         薄膜冲击试验机

熔融指数仪，                     无转子硫化仪

电压击穿试验仪，                 摩擦系数仪

低温脆性冲击试验仪               阿克隆磨耗试验机等。