绝缘漆交流击穿强度测试仪 适用范围:
主要适用于固体绝缘材料(如:塑料、橡胶、层压材料、薄膜、树脂、云母、陶瓷、玻璃、绝缘漆等绝缘材料及绝缘件)在工频电压或直流电压下击穿强度和耐电压的测试。
绝缘漆交流击穿强度测试仪 媒质:
⑴气体媒质:采用空气,如有闪络可在电极周围加柔软硅橡胶防飞弧圈。防飞弧圈与电极之间有一毫米左右的环状间隙,环宽30mm。
⑵液体媒质:常态试验及90℃以下的热态试验采用清洁的变压器油,90℃至300℃以内的热态试验采用清洁的过热气缸油。
主机配置
A. 变压器一台
B. 调压器一台
C. 传感器二个
D. 步进电机一台
E. PLC控制模块一套
F. 放电系统一套
G. 电流模块一套
H. 电压模块一台
I. 无线接收器一个
J. 数据处理系统一套
K. 计算机一台(选配)
L. 打印机一台(选配)
M. 实验软件一套
N. A/D转换器一套
O. 电极支架一套
P. 电极三个(可定制)
Q. 油槽一个
R. 手套一双
S. 连接线一套
T. 随机文件一份
U. 证书一份(选配)
介电系数,是一个在电的位移和电场强度之间存在的比例常量。这一个常量在自由的空间(一个真空)中是8.85?10的-12次方法拉第/米(F/m)。在其它的材料中,介电系数可能差别很大,经常远大于真空中的数值,其符号是eo。 在工程应用中,介电系数时常在以相对介电系数的形式被表达,而不是绝对值。如果eo表现自由空间(是,8.85?10的-12次方F/m)的介电系数,而且e是在材料中的介电系数,则这个材料的相对介电系数(也叫介电常数)由下式给出:ε1=ε / εo=ε?1.13?10的11次方 很多不同的物质的介电常数超过1。这些物质通常被称为绝缘体材料,或是绝缘体。普遍使用的绝缘体包括玻璃,纸,云母,各种不同的陶瓷,聚乙烯和特定的金属氧化物。绝缘体被用于交流电(AC),声音电波(AF)和无线电电波(射频)的电容器和输电线路。
测试介电强度的仪器信息
介电击穿强度试验仪满足GB1408.1-2006要求,主要适用于固体绝缘材料如:塑料、薄膜、树脂、云母、陶瓷、玻璃、、绝缘漆等介质在工频电压或直流电压下击穿强度和耐电压时间的测试;该仪器采用单片机控制,可对试验过程中的各种数据进行快速、准确的采集、处理,并可存取、显示、打印 的一种测试仪器。
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。
Scope of application:
It is mainly suitable for testing the breakdown strength and voltage resistance of solid insulation materials (such as plastics, rubber, laminated materials, films, resins, mica, ceramics, glass, insulation paints and other insulation materials and components) under power frequency voltage or DC voltage.
Media:
⑴ Gas medium: Air is used. If there is flashover, a soft silicone rubber anti arc ring can be added around the electrode. There is a circular gap of about one millimeter between the anti flying arc ring and the electrode, with a ring width of 30mm.
⑵ Liquid medium: Clean transformer oil is used for normal tests and hot tests below 90 ℃, and clean superheated cylinder oil is used for hot tests between 90 ℃ and 300 ℃.
Host configuration
A. One transformer
B. One regulator
C. Two sensors
D. One stepper motor
E. One set of PLC control module
F. A set of discharge system
G. One set of current module
H. One voltage module
I. One wireless receiver
J. A set of data processing system
K. One computer (optional)
L. One printer (optional)
M. One set of experimental software
N. A set of A/D converters
O. One set of electrode holder
P. Three electrodes (customizable)
Q. One oil tank
R. A pair of gloves
S. One set of connecting wires
T. One random file
U. One certificate (optional)
The dielectric constant is a proportional constant that exists between the displacement of electricity and the strength of the electric field. This constant in free space (a vacuum) is 8.85 ? 10 ^ -12 times the method pull per meter (F/m). In other materials, the dielectric constant may vary greatly, often much greater than the value in vacuum, and its symbol is eo. In engineering applications, the dielectric constant is often expressed in the form of relative dielectric constant rather than absolute value. If eo represents the dielectric constant of free space (8.85 ? 10 ^ -12 F/m), and e is the dielectric constant in the material, then the relative dielectric constant (also known as the dielectric constant) of this material is given by the following equation: ε 1=ε/ε o=ε ? 1.13 ? 10 ^ -11. Many different substances have dielectric constants exceeding 1. These substances are commonly referred to as insulating materials or insulators. Commonly used insulators include glass, paper, mica, various types of ceramics, polyethylene, and specific metal oxides. Insulators are used in capacitors and transmission lines for alternating current (AC), acoustic waves (AF), and radio waves (RF).
Instrument information for testing dielectric strength
The dielectric breakdown strength tester meets the requirements of GB1408.1-2006 and is mainly suitable for testing the breakdown strength and withstand time of solid insulation materials such as plastics, films, resins, mica, ceramics, glass, insulating paints, etc. under power frequency voltage or DC voltage; This instrument is controlled by a microcontroller and can quickly and accurately collect and process various data during the experimental process. It is a testing instrument that can be accessed, displayed, and printed.
Electrical strength refers to the ratio of the breakdown voltage to the thickness of the breakdown sample, which is equal to the electrical strength of the sample.
In physics, the term electrical strength has the following meanings:
In insulation materials, pure materials can withstand the maximum electric field under ideal conditions without damage (i.e. without experiencing failure of their insulation performance).
For the specific configuration of dielectric materials and electrodes, the minimum applied electric field that causes breakdown (i.e., the applied voltage divided by the electrode separation distance).
The theoretical electrical strength of a material is an inherent property of bulk materials and is independent of the construction of the material or electrode to which an electric field is applied. This' intrinsic dielectric strength 'corresponds to the value measured using pure substances under ideal laboratory conditions. During breakdown, the electric field releases bound electrons. If the applied electric field is high enough, free electrons from background radiation may accelerate to a speed that releases additional electrons during collisions with neutral atoms or molecules, known as avalanche breakdown. The breakdown occurs quite suddenly (usually in a few nanoseconds), leading to the formation of a conductive path and destructive discharge through the material. For solid materials, breakdown events are significantly reduced, and even their insulation ability is damaged.
配置参数:
1 试验变压器
1.1 输出电压: AC 0-5000V,DC 0-5000V;
1.2 输入电压:220v
1.3 额定容量下,长期连续运行;
1.4 最大输出电压下,PD≤1pC;
1.5 噪声≤58dB(1m位置测量)。
2 调压器
2.1 输入电压:220V;
2.2 额定容量:3kVA(如果有补偿,可以小于15kVA,但不小于10kVA);
2.3额定容量下,长期连续运行;
2.4噪声≤58dB(1m位置测量);
2.5 电动调压。
3 高压分压器
3.1 高压臂电容:1nF;
3.2 分压比:700(可讨论,结合测量控制系统);
3.3 额定容量下,长期连续运行;
3.4 最大输出电压下,PD≤1pC;
3.5 测量精度:1%。
4 计算机控制
4.1 蓝牙连接;
4.2 安全保护;
5 试验电极
5.1 满足GB/T 1408-2006 绝缘材料电气强度试验方法;
5.2 满足GB/T 1695-2005 硫化橡胶工频电压击穿强度和耐压强度试验。
Configuration parameters:
1. Test Transformer
1.1 Output voltage: AC 0-5000V, DC 0-5000V;
1.2 Input voltage: 220V
1.3 Long term continuous operation at rated capacity;
At the maximum output voltage of 1.4, PD≤1pC;
1.5 Noise ≤ 58dB (measured at 1m position).
2 regulators
2.1 Input voltage: 220V;
2.2 Rated capacity: 3kVA (if compensated, it can be less than 15kVA, but not less than 10kVA);
2.3 Long term continuous operation at rated capacity;
2.4 Noise ≤ 58dB (measured at 1m position);
2.5 Electric voltage regulation.
3 High Voltage Dividers
3.1 High voltage arm capacitance: 1nF;
3.2 Voltage division ratio: 700 (negotiable, combined with measurement and control system);
3.3 Long term continuous operation at rated capacity;
At the maximum output voltage of 3.4, PD≤1pC;
3.5 Measurement accuracy: 1%.
4 Computer Control
4.1 Bluetooth connection;
4.2 Security protection;
仪器特点:
01、本仪器在试验过程中可对升压击穿过程绘制实时曲线,
02、可以随时调取当前及历史试验数据进行查看,编辑及修改参数。
03、试验过程中可以随时修改试验条件及存储路径及自动存储试验结果。
04、试验过程中,可随时通过软件决定本次试验是否有效,方便筛选试验结果。
05、可设置操作口令,做到专机专人操作,避免无关人员误操作。
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。
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。
Instrument features:
01. This instrument can draw real-time curves of the boost breakdown process during the experiment,
02. Current and historical experimental data can be accessed at any time for viewing, editing, and modifying parameters.
During the experiment, the test conditions and storage path can be modified at any time, and the test results can be automatically stored.
During the experiment, the validity of the experiment can be determined at any time through software, making it convenient to screen the test results.
05. Operation passwords can be set to enable dedicated personnel to operate the aircraft, avoiding accidental operations by unrelated personnel.
Basic functions:
The voltage breakdown tester is controlled by a computer, and the data acquisition method is through photoelectric isolation, effectively solving the anti-interference problem during the test process. The software is easy to operate and can display dynamic curves in real time. At the same time, the boost rate is infinitely adjustable, and the boost rate can be adjusted according to one's own needs within the range of 0.1KV-3KV/S, making the boost rate truly uniform and accurate, and can accurately measure the leakage current data. Real time drawing of experimental curves, display of experimental data, accurate judgment, and the ability to save, analyze, and print experimental data. And it can automatically identify the breakdown of the sample and collect breakdown voltage data and leakage current. At the same time, it can quickly reduce the voltage and automatically reset to zero at the moment of breakdown. The software system is easy to operate, has stable performance, and is safe and reliable.
Basic functions:
The voltage breakdown tester is controlled by a computer, and the data acquisition method is through photoelectric isolation, effectively solving the anti-interference problem during the test process. The software is easy to operate and can display dynamic curves in real time. At the same time, the boost rate is infinitely adjustable, and the boost rate can be adjusted according to one's own needs within the range of 0.1KV-3KV/S, making the boost rate truly uniform and accurate, and can accurately measure the leakage current data. Real time drawing of experimental curves, display of experimental data, accurate judgment, and the ability to save, analyze, and print experimental data. And it can automatically identify the breakdown of the sample and collect breakdown voltage data and leakage current. At the same time, it can quickly reduce the voltage and automatically reset to zero at the moment of breakdown. The software system is easy to operate, has stable performance, and is safe and reliable.
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