High Voltage Test

WHAT IS A HIGH - VOLTAGE TEST?


An electrical high-voltage test (HV test), also known as a high-voltage insulation test or dielectric strength test, is a procedure for testing the insulation strength of electrical devices or systems. A high voltage is applied to ensure that the insulation of the device or system meets the required safety standards. The test is carried out to identify possible insulation faults or weaknesses that could lead to electric shock or other hazards. The high voltage test is usually performed with specialised test equipment that can generate a high voltage while limiting the current flow to prevent damage to the equipment under test.


HOW IS A HIGH-VOLTAGE TEST CARRIED OUT?

 

Here are the basic steps to perform a high-voltage test:

 

  1. Preparation: Make sure that the device is switched off and disconnected from the power supply. Also check that the tester is working properly and is calibrated.

  2. Connecting the test device: Connect the tester to the device connections to be tested. Ensure that the connection is firm and secure.

  3. Setting the test voltage: Set the desired test voltage on the tester. The test voltage depends on the specific requirements of the device or the standard according to which the test is performed.

  4. Performing the test: Switch on the tester and start the high-voltage test. The tester generates a high voltage which is applied to the device or component. The test duration may vary depending on the requirements.

  5. Evaluation of the result: During the test, it is monitored whether a breakdown or an impermissible current flow occurs. If a breakdown or an impermissible current flow is detected, the test is deemed to have failed. If no breakdown or impermissible current flow occurs and the insulation strength of the device or component is maintained, the test is deemed to have been passed.

 

The safety guidelines in accordance with EN 50191 must be observed throughout the entire process. It is important that the test is carried out by trained personnel, as high voltages are used and this can lead to dangerous situations. In addition, the cables or devices to be tested should be de-energised before the test in order to avoid accidents.

 

 

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  1. ATS 400 Bild 1
    ATS400 UGIPe-30L30L32-1G-OCV1000
    Article number 212987
    • HV DC - High Voltage Testing
      50,0 - 3000 V DC, 0,01 - 2,00 mA, current limited, earthed on one side, active discharge, ramp, discharge monitoring
    • ISO - Insulation Testing
      50,0 - 3000 V DC, 500,0 kΩ - 1000 MΩ (opt. 10 GΩ), current limited accor. EN 50191, earthed on one side, active discharge, ramp, discharge monitoring
    • PE - Testing of Protective Earth
      2,0 - 32,0 A AC/DC (opt. up to 40 A), 1 - 500 mΩ, < 12 V, 4 - wire measurement
    • Contacting options
      CCCG
  2. ATS 400 Bild 1
    ATS400 UHGIR-507030L
    Article number 212174
    • HV AC - High Voltage Testing
      100,0 - 5000 V AC, 0,01 - 100,00 mA (opt. from 1 nA), potential free, ramp, discharge monitoring
    • HV DC - High Voltage Testing
      150,0 - 7000 V DC, 0,01 - 100,00 mA (opt. from 1 nA), max. 500VA, potential free, ramp, discharge monitoring
    • ISO - Insulation Testing
      50,0 - 3000 V DC, 500,0 kΩ - 400,0 MΩ (opt. 5 GΩ), current limited accor. EN 50191, earthed on one side, active discharge, ramp, discharge monitoring
    • R - Resistance Measurement DC4
      1 µA - 2 A, 0,01 µΩ - 2,2000 MΩ, 4-wire measuring technique, contact monitoring, automatic measuring range selection, optional 11 fixed measuring ranges
    • Contacting options
      CCC
  3. ATS 400 Bild 1
    ATS400 UG-80
    Article number 208595
    • HV DC - High Voltage Testing
      150,0 - 8000 V DC, 0,10 - 50,0 mA, potential free, ramp, discharge monitoring
    • Contacting options
      CC
  4. ATS 400 Bild 1
    ATS400 UGR-70
    Article number 208931
    • HV DC - High Voltage Testing
      150,0 - 7000 V DC, 0,50 - 70,0 mA, current limited, potential free, ramp, discharge monitoring
    • R - Resistance Measurement DC4
      1 µA - 2 A, 0,01 µΩ - 2,2000 MΩ, 4-wire measuring technique, contact monitoring, automatic measuring range selection, optional 11 fixed measuring ranges
    • Contacting options
      CCC
  5. ATS 400 Bild 1
    ATS400 UHGI-507030Le
    Article number 211988
    • HV AC - High Voltage Testing
      100,0 - 5000 V AC, 0,01 - 100,00 mA (opt. from 1 nA), potential free, ramp, discharge monitoring
    • HV DC - High Voltage Testing
      150,0 - 7000 V DC, 0,01 - 100,00 mA (opt. from 1 nA), max. 500VA, potential free, ramp, discharge monitoring
    • ISO - Insulation Testing
      50,0 - 3000 V DC, 500,0 kΩ - 400,0 MΩ (opt. 5 GΩ), current limited accor. EN 50191, earthed on one side, active discharge, ramp, discharge monitoring
    • Contacting options
      CC
  6. ATS 400 Bild 1
    ATS400 UGI-36L36L, current limited
    Article number 212475
    • HV DC - High Voltage Testing
      50,0 - 3600 V DC, 0,01 - 2,00 mA, current limited, earthed on one side, active discharge, ramp, discharge monitoring
    • PE - Testing of Protective Earth
      2,0 - 32,0 A AC/DC (opt. up to 40 A), 1 - 500 mΩ, < 12 V, 4 - wire measurement
    • Contacting options
      CCG
  7. ATS 400 Bild 1
    ATS400 UGI-36L36L, current limited
    Article number 204674
    • HV AC - High Voltage Testing
      100,0 - 6000 V AC, 0,01 - 80,00 mA, potential free, ramp, discharge monitoring
    • PE - Testing of Protective Earth
      2,0 - 32,0 A AC/DC (opt. up to 40 A), 1 - 500 mΩ, < 12 V, 4 - wire measurement
    • Contacting options
      CCG
  8. ATS 400 Bild 1
    ATS400 UG-30L
    Article number 202846
    • HV DC - High Voltage Testing
      50,0 - 3000 V DC, 0,01 - 2,00 mA, current limited, earthed on one side, active discharge, ramp, discharge monitoring
    • Contacting options
      CC
  9. ATS 400 Bild 1
    ATS400 UG-50L
    Article number 205929
    • HV DC - High Voltage Testing
      150,0 - 5000 V DC, 0,01 - 5,00 mA, current limited, potential free, ramp, discharge monitoring
    • Contacting options
      CC
  10. ATS 400 Bild 1
    ATS400 UGIPR-707032
    Article number 211718
    • HV DC - High Voltage Testing
      150,0 - 7000 V DC, 0,10 - 100 mA, potential free, ramp, discharge monitoring
    • ISO - Insulation Testing
      150,0 - 7000 V DC, 500,0 kΩ - 400,0 MΩ (opt. 5 GΩ), potential free, ramp, discharge monitoring
    • PE - Testing of Protective Earth
      2,0 - 32,0 A AC/DC (opt. up to 40 A), 1 - 500 mΩ, < 12 V
    • R - Resistance Measurement DC4
      1 µA - 2 A, 0,01 µΩ - 2,2000 MΩ, 4-wire measuring technique, contact monitoring, automatic measuring range selection, optional 11 fixed measuring ranges
    • Contacting options
      CCCG

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High voltage testing for maximum safety and reliability

High voltage testing is an essential process for ensuring the safety and reliability of electrical equipment and systems. It is used to ensure that insulation materials can withstand the high voltages that can occur in real operating conditions. Whether in power supply, mechanical engineering or electronics, high voltage testing is a crucial part of quality assurance. It helps to identify and correct potential weak points and defects at an early stage before they can lead to serious problems.

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High voltage testing plays a key role in numerous industries by ensuring the safety and reliability of electrical components and systems. Its applications are diverse and crucial for quality assurance in various industries. In the power industry, high voltage testing is essential for inspecting transformers, switchgear and cables. These tests ensure that all components can withstand the extreme stresses that can occur during operation and minimize the risk of blackouts and outages.

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When purchasing high voltage test equipment, it is crucial to consider the specific requirements of your application. Pay attention to the test capacity and the type of tests to be performed, such as AC, DC or partial discharge tests. Our equipment is state-of-the-art and meets all international norms and safety standards. We offer free and comprehensive advice to ensure you get the right device for your specific requirements. Trust in our quality and our commitment to your safety and satisfaction.