Chroma 19036 is the industry's first Wound Component Electrical Safety Test (EST) Analyzer that combines the functions of impulse test, hipot, insulation resistance and DC resistance measurements. It has 5kVac/ 6kVdc high voltage output, 5kV insulation resistance, 6kV layer short impulse voltage and 4-wire DC resistance measurement that can comply with the wound components test demands by providing maximum 10 channels output for multichannel scanning tests to save time and labor costs.
伤口组件的测试项目包括AC/ DC Hipot测试,IR测试,IWT(IMPULSE绕组测试)和DCR(DC电阻)。Chroma将上述测试集成到19036年的伤口组件EST分析仪中,该测试可以对电动机,变压器和电磁阀等伤口组件进行安全测试,以验证其质量。
Poor insulation of coil often causes layer short, cross-line short or pin short during usage, and the reason could be initial design error, poor fabrication process or bad insulation material. Thus, to add layer short test in the electrical safety test manufacturing process can complete the scanning test for multiple windings at once to increase the quality of wound components.
Combining the layer shor t testing function, the 19036 has 6kV impulse voltage with area, differential area, Flutter and Laplacian judgments to supply effective measures for inspecting poor coil insulation.
The 19036 is equipped with a patented 4-wire DC resistance test that has both Drive and Sense in compliance with withstanding specification to provide 10 channels of 4-wire DC resistance test functions. Up to 40ch of scanning test can be conducted when the 19036 is configured with 16ch scan boxs.
The 19036 also has HSCC functions to scan multiple windings rapidly for normal connection. It can solve the test fail problems caused by bad contact of cabling or test fixture.
The motor standard such as UL 1004-1 requires high power safety tester. Chroma 19036 with the capability of outputting & measuring AC100mA/DC 20mA is suitable for testing large leakage current or big electrical safety equipment. Chroma 19036 as a comprehensive tester integrated with high power hipot test and other safety tests can bring the maximum benefit to the production line as well as to quality assurance. Its 500VA design is also compliant with the output power requirements of EC/UL.
Measurement Technology
Hipot测试闪存检测(ARC)
Fast transient on detected leakage current is defined as flashover in hi-pot test. The 19036 has Flashover Detection as other Chroma safety test series. Flashover is nonsequential discharge generated by the inner or surface of insulation component which cause DUTs to lose original insulation feature, generated carbonation electrically conductive path and damages the product. As flashover cannot be detected by leakage current rms value, Flashover Detection is one of the inevitable inspection items in HV test.
Impulse Testing Overview
冲动绕组测试是在DUT(正在测试的设备)上施加非破坏性,高速和低能电压冲动,以分析/比较良好且没有良好判断力的产量和缺陷产物的等效波形。亚博app下载网址冲动绕组测试的主要功能是发现潜在的缺陷,例如层短,电晕或部分放电,这些缺陷在早期的伤口成分中很难找到。
测试的四种波形判断
- Area size
- 差分区域
- 扑打价值
- Laplacian value
DCR Measurement
- DCR测量(两线/四线)
Chroma 19036可以选择使用2线或4线DCR测量。新的专利端口设计可为多个伤口样品(如电动机和变压器)进行高精度测试提供最大10个通道4线DCR测量。测量范围从0.1MΩ到500kΩ。 - DCR Balance
When the DCR of the motor with 3 windings is unbalanced, the rotation will not be balanced as well and it could cause bad quality for long term use. The judgement of DCR balance is to subtract the maximum and the minimum value of winding and the product is no good if the value exceeds the set range. It is a reliable assistant tool for testing motor products. - 临时补偿
When measuring a smaller DCR, it often encounters the problem of temperature difference. The measured resistance is varied with the temperature. Thus, the temp compensation function is included in the 19036. Through the conversion of temperature coefficient, it changes the DCR to the measured value under standard temperature to reduce the influence caused by temperature difference.
联系检查功能
High Speed Contact Check (HSCC)
如果对电气安全测试电路发生开放,则可能会导致缺陷的产品被判断为好的产品。接触检查可以在短路时检测和筛选产品,以减少固定装置的损坏并节省测试成本。亚博app下载网址如果DUT电路触点正确,则HSCC函数可以迅速扫描。这项新技术允许在Hipot测试之前进行接触检查,比以往任何时候都更快。19036年还具有高频接触检查(HFCC)和打开的短检查(OSC,专利254135)功能,可以检测到绕组和铁芯之间是否有开放(不良接触)或短路(DUT短路)。
Substep for Testing Multiple Wound Components
平行Hipot测试通常用于提高制造速度。但是,在进行并行测试时,它无法正确设置当前的高/低限制,并且会导致缺陷产品的泄漏或将商品误认为没有好处。亚博app下载网址它还添加了用于测试缺陷产品并增加成本的工作站。亚博app下载网址19036提供了子步骤功能,以解决并行测试引起的麻烦。当生产需要并行测试时,IT程序会失败,因为子步骤启动条件仅在主测试项目(并行)失败时,将执行子步骤测试项目(单)以判断缺陷DUT。该功能的实施可以优化生产率和质量检查。
例子:
Step 1: AC Hipot / pin1 to pin5, 6, 7
子步骤1.1:AC Hipot / Pin1至Pin5
子步骤1.2:AC Hipot / Pin1至Pin6
子步骤1.3:AC Hipot / Pin1至Pin7
GFI Human Protection
安全测试的最终目的是保护用户免受电气危害。19036还具有保护操作员的GFI功能。当人体遭受电击时,GFI功能可以立即切断功率输出。GFI函数检测到地球GND(Ioperator)和低末端(IDEVICE)的电流。如果电流超过0.5mA,电压输出将切断。
申请
从电动汽车电动机,伺服电机,升天电动机到风扇,所有旋转电机产品都需要执行IMPULSE测试,Hipot测试和DCR测量,以确保产品质量也涉及J亚博app下载网址B/T 7080 GB机械行业的测试标准。19036年的DCR测量为4线型,每个端子都有驱动器和感知总数10个独立的扫描测试渠道,以一次提高生产率。每个通道可以分别设置为HI/LO/打开。
Y型电机
例如,Y型电机,测试项目是:
- HSCC / OSC
- DCR测试
- Impulse Test
- hi-pot - Sub步骤测试
△-type和Y型电动机
为了解决无法直接在△型和Y型电动机绕组(无中心敲击)上进行DCR测量的问题,Chroma 19036添加了△型和Y型电动机绕组DCR计算功能,以获得以获得的值R1,R2和R3。
40个频道扫描测试
A190359/A190362(4线)扫描仪具有16个测试通道,每个测试通道都可以设置为H(高压,HI),L(高压,LO)或X(打开)。19036年和A190359/A190362(4线)的组合可以适用于多个销钉或少量但多样化的DUT以及细胞类型生产线,以完成一个站点内的所有测试。