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KYORITSU Electrical Instruments Japan

KYORITSU Electrical Instruments Japan. 世界级测试仪器 是测试测量行业领导者 公司成立 1940 年 , 有 63 年的生产 . 研发 . 测试测量经验. PRACTICAL GUIDE TO THE EARTH MEASUREMENTS ON ELECTRICAL INSTALLATIONS. 地桩式接地电阻 接地环路电阻测试 钳型接地电阻测试. KEW. slide 2. PRACTICAL GUIDE TO THE EARTH MEASUREMENTS.

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KYORITSU Electrical Instruments Japan

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  1. KYORITSU Electrical Instruments Japan 世界级测试仪器 是测试测量行业领导者 公司成立1940年,有 63年的生产.研发. 测试测量经验.

  2. PRACTICAL GUIDE TO THE EARTH MEASUREMENTS ON ELECTRICAL INSTALLATIONS 地桩式接地电阻 接地环路电阻测试钳型接地电阻测试 KEW slide 2

  3. PRACTICAL GUIDE TO THE EARTH MEASUREMENTS 以下三种测试都可以判断接地电阻的优劣: • 伏-安法 : • 最传统的测量接地电阻的方法,需要 • 两个辅助接地棒来完成. • 环路电阻法: • 便捷的一种方式,适合用于TT系统 • 无须辅助接地棒. • 钳型接地电阻法: • 只需钳住接地物,便可知道接地电阻. KEW slide 3

  4. 1) VOLT-AMPEROMETRIC METHOD 4105A测试的实际应用. 优点: 无须手摇,电池供点 最准确的测试方法. 缺点: -需要在大地上打辅助接地棒. -需要有足够的空间和场地来完成打辅助接地. KEW slide 4

  5. 2) LOOP TESTER METHOD 4120A测试的实际应用. 优点: -无须辅助接地极. -测试可以直接在插座上完成. 缺点: -仅仅可以用于TT系统. KEW slide 5

  6. 3) EARTH CLAMP TESTER METHOD 4200测试实际应用. 优点: -无须辅助接地棒. -无须断开接地极. 缺点: -适用与大的接地系统,可以形成一个接地回路的场所. KEW slide 6

  7. 3) KEW 4200 EARTH CLAMP: PRINCIPLE OF OPERATION 4200应用与多接地系统的场所. KEW slide 7

  8. SOME EXAMPLES OF EARTH RESISTANCE TEST BY KYORITSU EARTH CLAMP KEW 4200 KEW slide 8

  9. EARTH RESISTANCE TEST by KEW 4200 EARTH CLAMP 钳型接地电阻测试仪的一些实际应用: KEW slide 9

  10. SOME EXAMPLES OF EARTH RESISTANCE TEST BY KYORITSU EARTH CLAMP KEW 4200 KEW slide 10

  11. SOME EXAMPLES OF EARTH RESISTANCE TEST BY KYORITSU EARTH CLAMP KEW 4200 KEW slide 11

  12. KYORITSU EARTH MEASUREMENTS END KEW slide 12

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