供应

50KV绝缘介电强度试验机  软件功能:

(1) 01、软件平台：WINDOWS窗口操作平台，界面直观，便于操作

(2) 02、曲线显示：在实验过程中可以动态显示试验曲线

(3) 03、数据导出：可以对试验结果导入EXCEL表格

(4) 04、实验报告：可以人为设置报告名称，并对实验报告进行打印

(5) 05、试验方式：可以根据需求对直流试验和交流试验进行灵活选择

(6) 06、试验方法：可以根据需求自行选择击穿电压、耐压试验、梯度试验

(7) 07、参数设置：可以根据不同的试验方式及试验方法灵活设置所需的不同参数值

(8) 08、试样设置：可对不同标准的试样参数灵活设置

(9) 09、人员管理：设置用户名及密码，不同的操作员登入进行不同的试验，互不影响

(10) 10、标准选择：含有不同标准，可根据需求自行选择

(11) 11、连续操作：连续操作试验时，可直接在软件里结束试验，进行二次试验

50KV绝缘介电强度试验机  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 。

技术要求：

01、电压试验精度： ≤1％

02、输出电压： 交流0--50 KV ;

               直流0--70 KV ;（同类产品做到50kv)

03、耐压时间设定：0-6小时(可通过软件连续设定)

04、高压分级：0--50KV全程可调(采用高精度电压采样器件，取消了同类厂家由于电压采样精度不够必须采用高压分级的方式)

05、升压速率：

100 V/S    200 V/S    500 V/S    1000 V/S     2500 V/S     3000 V/S (此项满足标准里面极快速升压试验要求)

06、试验方式：

           直流试验：1、匀速升压2、阶梯升压3、耐压试验

           交流试验：1、匀速升压2、阶梯升压3、耐压试验

 注：根据不同行业的标准，我们可以根据用户的要求，依据贵行业标准，为您定制行业标准所需的特殊测试功能。

07、输入电压： 交流220 V

 08、电极规格：1、片材电极 ￠25mm  两个   片材电极 ￠75mm一只

                 2、管用电极          两个 、一套。

09、过电流保护装置应有足够灵敏度以保证试样击穿时在0.05S内切断电源。

10、本仪器采用先进的无触点原件匀速调压方式，淘汰同类产品中机械传动升压方式。

11、一次试验可以做5个试样。备注:(同类产品一次试验只能做一个试样)

12、电器容量：10KVA

气体电介质击穿

在电场作用下气体分子发生碰撞电离而导致电极间的贯穿性放电.其影响因素很多,主要有作用电压,电板形状,气体的性质及状态等.气体介质击穿常见的有直流电压击穿,工频电压击穿,高气压电击穿,冲击电压击穿,高真空电击穿,负电性气体击穿等.空气是很好的气体绝缘材料,电离场强和击穿场强高,击穿后能迅速恢复绝缘性能,且不燃,不爆,不老化,无腐蚀性,因而得到广泛应用.为提供高电压输电线或变电所的空气间隙距离的设计依据（高压输电线应离地面多高等）,需进行长空气间隙的工频击穿试验.

结构原理及性能特点：

        本设备主要由：升压系统(高压变压器)、测量系统、A/D转换器、放电系统、电极、油箱、电极定位架、计算机数据处理系统、软件等组成

计算机--A/D转换器--测量控制系统--调压装置--升压变压器--试样

高压变压器主要产生试样所需的直流电压，

调压器用于调节升压变压器输入端电压以产生高压所需的输入电压，

电压测量主要是从高压变压器测量端测量，高压变压器测量端和高压端是线性的，

放电系统在试验做完以后自动放电，以免产生放电对人身的危害；

安全防护措施：

   本仪器具有多重防护措施，保证操作人员的人身安全

（一）门限位保护：不关门，即使通电点实验开始，设备无任何反应，软件有:安全门未关闭提示。

（二）电压归零保护：如果在实验过程中，突然断电，下次开机后，会自动回到零位，保证初始电压为

（三）在零位

（四）终止电压保护：可以通过软件设定终止电压，保证在升压过程中如果出现异常升到指定的电压后，

（五）自动终止并归零

（六）高压机械限位：如果软件系统失去控制，电压继续往上升，到高压限位后自动归零

（七）如果在击穿后未判停，通过过流保护器采集数据保证电压自动归零

（八）有高压指示灯，通过观察指示灯的状态来判断实在升压还是在零位

（九）如果长时间做实验，为保证设备的良好运行，设备留有变压器排气口，保证变压器的良好运行，

（十）增长使用寿命

（十一）如果在实验中，试样有异味或者出现燃烧和冒烟现象，可以通过排风系统进行排除。

（十二）独立接地保护

（十三）短路保护

（十四）软件误操作保护

（十五）漏电保护

（十六）实验结束放电保护

注意事项：

本仪器为高压试验设备，使用时必须注意以下几点

1， 仪器安装时应具有独立的接地线。

2， 在开机前，操作者要首先熟悉操作方法。

3， 仪器不能在有强烈腐蚀性气体及有颗粒杂质的气体环境中使用。

4， 试验环境温度15度到25度之间，相对湿度60％到70％之间

5， 试样击穿瞬间有火花产生并伴有声响，属正常现象。

6， 每次更换试样或接触高压电极时必须用高压放电棒对高压电极进行放电，放电时间5秒以上。

7， 每次进行试验前，必须检查仪器接地。

电气强度测试(electric strength test)又称耐压测试。简单点说，任何电气设备都有一个绝缘强度，不同额定电压的绝缘强度不一样。当超过一定电压等级后，设备的绝缘就会被击穿。电气强度测试就是看在给被测设备加一定的高电压（可以参考IEC标准或者国标），看是否会导致击穿。如果不击穿，则通过，击穿则说明不合格。

　　一般在设备出厂前做这个试验，在现场可能仅仅是摇绝缘就可以了。另外，该试验是破坏性试验，一旦击穿，不可修复。

　　电气强度测试(electric strength test)又称耐压测试，是围绕绝缘材料被击穿后呈现出导体特性的特点,考察相关电参数的变化特征,以此判定绝缘材料是否被击穿

Software features:

(1) 01. Software platform: Windows window operation platform, intuitive interface, easy to operate

(2) 02. Curve display: During the experiment, the test curve can be dynamically displayed

(3) 03. Data export: It is possible to import experimental results into an Excel spreadsheet

(4) 04. Experimental report: The report name can be manually set and the experimental report can be printed

(5) 05. Test method: Flexible selection of DC and AC tests can be made according to requirements

(6) 06. Test method: You can choose breakdown voltage, withstand voltage test, and gradient test according to your needs

(7) 07. Parameter setting: Different parameter values can be flexibly set according to different testing methods and methods

(8) 08. Sample setting: Flexible setting of sample parameters for different standards

(9) 09. Personnel management: Set username and password, different operators log in for different experiments, without affecting each other

(10) 10. Standard selection: Contains different standards, can be selected according to needs

(11) 11. Continuous operation: During the continuous operation test, the test can be directly ended in the software and a second test can be conducted

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.

Technical requirements:

01. Voltage test accuracy:≤1%

02. Output voltage: AC 0-50 KV;

DC 0-70 KV; (Achieve 50kV for similar products)

03. Voltage withstand time setting: 0-6 hours (can be continuously set through software)

04. High voltage classification: 0-50KV full range adjustable (using high-precision voltage sampling devices, eliminating the need for similar manufacturers to use high voltage classification due to insufficient voltage sampling accuracy)

05. Boost rate:

100 V/S 200 V/S 500 V/S 1000 V/S 2500 V/S 3000 V/S (this item meets the requirements of the standard for extremely fast voltage boosting test)

06. Test method:

DC test: 1. Constant speed boost 2. Step boost 3. Voltage withstand test

Communication test: 1. Constant speed boosting 2. Step boosting 3. Voltage withstand test

Note: Based on the standards of different industries, we can customize special testing functions required by your industry standards according to user requirements.

07. Input voltage: AC 220 V

08. Electrode specifications: 1. Two sheet electrodes with a diameter of 25mm, one sheet electrode with a diameter of 75mm

2. Use two electrodes, one set.

09. The overcurrent protection device should have sufficient sensitivity to ensure that the power supply is cut off within 0.05S when the sample is broken down.

10. This instrument adopts advanced non-contact components for constant speed voltage regulation, eliminating the mechanical transmission boosting method in similar products.

11. A single experiment can produce 5 samples. Note: (Only one sample can be made for a single test of similar products)

12. Electrical capacity: 10KVA

Gas dielectric breakdown

Under the action of an electric field, gas molecules collide and ionize, leading to penetrating discharge between electrodes. There are many influencing factors, mainly including the applied voltage, the shape of the electrode, the properties and state of the gas, etc. Common breakdown of gas media include DC voltage breakdown, power frequency voltage breakdown, high gas voltage breakdown, impulse voltage breakdown, high vacuum breakdown, negative gas breakdown, etc. Air is a good gas insulation material, with high ionization and breakdown field strength, After breakdown, the insulation performance can be quickly restored, and it is not flammable, explosive, aging, or corrosive, so it is widely used. To provide a design basis for the air gap distance of high-voltage transmission lines or substations (how high the high-voltage transmission lines should be from the ground), a power frequency breakdown test with a long air gap is required

Structural principles and performance characteristics:

This equipment mainly consists of: step-up system (high-voltage transformer), measurement system, A/D converter, discharge system, electrodes, oil tank, electrode positioning frame, computer data processing system, software, etc

Computer - A/D converter - Measurement control system - Voltage regulation device - Booster transformer - Sample

The high-voltage transformer mainly generates the DC voltage required for the sample,

The voltage regulator is used to regulate the input voltage of the step-up transformer to generate the input voltage required for high voltage,

Voltage measurement is mainly measured from the measurement end of the high-voltage transformer, and the measurement end and high-voltage end of the high-voltage transformer are linear,

The discharge system automatically discharges after the experiment is completed to avoid the harm of discharge to human health;

Security measures:

This instrument has multiple protective measures to ensure the personal safety of operators

（1）Door limit protection: Do not close the door, even if the power point experiment starts, the device has no response, and the software has a warning that the safety door is not closed.

（2）Voltage zeroing protection: If there is a sudden power outage during the experiment, it will automatically return to the zero position after the next startup, ensuring that the initial voltage is

（3）At zero position

（4）Termination voltage protection: The termination voltage can be set through software to ensure that if there is an abnormal rise to the specified voltage during the boosting process,

（5）Automatically terminate and reset to zero

（6）High voltage mechanical limit: If the software system loses control, the voltage continues to rise and automatically returns to zero after reaching the high voltage limit

（7）If the fault is not detected after breakdown, data is collected through an overcurrent protector to ensure that the voltage automatically zeros out

（8）There is a high-voltage indicator light, and by observing the status of the indicator light, it can be determined whether the boost is actually in the zero position or not

（9）If conducting experiments for a long time, in order to ensure the good operation of the equipment, a transformer exhaust port should be left on the equipment to ensure the good operation of the transformer,

（10）Increase service life

（11）If there is any odor or combustion or smoke in the sample during the experiment, it can be eliminated through the exhaust system.

（12）Independent grounding protection

（13）Short circuit protection

（14）Software Misoperation Protection

（15）Leakage protection

（16）End of experiment discharge protection

Notes:

This instrument is a high-voltage testing equipment, and the following points must be noted when using it

1. The instrument should have an independent grounding wire during installation.

Before starting up, the operator should first familiarize themselves with the operating methods.

3. The instrument should not be used in gas environments with strong corrosive gases and particulate impurities.

4. The test environment temperature is between 15?C and 25?C, and the relative humidity is between 60% and 70%

5. Sparks are generated and accompanied by sound at the moment of sample breakdown, which is a normal phenomenon.

6. Each time the sample is replaced or the high-voltage electrode is in contact, a high-voltage discharge rod must be used to discharge the high-voltage electrode for at least 5 seconds.

7. Before each experiment, the instrument grounding must be checked.

Electrical strength test, also known as voltage withstand test. Simply put, any electrical equipment has an insulation strength, and the insulation strength varies with different rated voltages. When the voltage level exceeds a certain level, the insulation of the equipment will be broken down. Electrical strength testing is to apply a certain high voltage to the tested equipment (can refer to IEC standards or national standards) to see if it will cause breakdown. If it does not break through, it passes. If it breaks through, it indicates that it is unqualified.

Usually, this test is conducted before the equipment leaves the factory, and on site, it may only be necessary to shake the insulation. In addition, this test is destructive and cannot be repaired once it is broken down.

Electrical strength test, also known as voltage withstand test, is a test that focuses on the characteristics of insulating materials that exhibit conductor characteristics after being broken down, examining the changes in relevant electrical parameters to determine whether insulating materials have been broken down