High-voltage testers
High-voltage testers are an indispensable tool for quality assurance of electrical products, whether in industrial manufacturing, in laboratories, in product development, or at certification bodies.
SCHLEICH's high-voltage testers comply with all relevant testing standards and can be custom your testing processes—whether manual or fully automated. Our systems are tailored to your requirements and provide maximum flexibility and absolute reliability.
Rely on technology that sets the standard—for safe, compliant, and efficient high-voltage testing.
Key Facts:
- high voltage test in accordance with standards high voltage test AC or DC
- Manual and automated test procedures
- Test duration: seconds, minutes, hours, days, or months
- Graphical display of measured values
- Expandable for complex test objects with multiple test points
- Relay matrices with hundreds of test points
- Ideal for production testing and end-of-line testing
- Ideal for acceptance testing and quality assurance
- Dual-channel safety function – compliant with PLe / SIL3
GLP1-g Testers
AC and DC High-Voltage Testers | 18 Models
AC
- 6–50 kV
- 3–200 mA
DC
- 4–10 kV
- 6–20 mA
Ideal for
- Manual testing using high-voltage test guns
- Testing in a test cover, test booth
- Fully automated test stations
- OEMs, systems engineering
- Communication with
«» PC
«» PLC
«»LabVIEW®
GLP2-BASIC
AC and DC High-Voltage Testers
AC
- 6 kV
- 3.1 A
DC
- 6 kV
- 6, 100 mA
Ideal for
- Manual testing with high-voltage test guns
- Testing in a test cover, test booth
- Fully automated test stations
- OEMs, systems engineering
- Communication with
«» PC
«» PLC
«»LabVIEW®
«» MES / ERP
«» Fieldbus, e.g., PROFIBUS ...
«» Industrial Ethernet, e.g., PROFINET, EtherCAT, EtherNet/IP, Modbus-TCP ...
GLP2-MODULAR
AC and DC High-Voltage Testers
AC
- 6–100 kV
- 3–5,000 mA
DC
- 4–100 kV
- 6–1000 mA
Ideal for
- Manual testing using high-voltage test guns
- Testing in a test cover, test booth
- Fully automated test stations
- OEMs, systems engineering
- Communication with
«» PC
«» PLC
«»LabVIEW®
«» MES / ERP
«» Fieldbus, e.g., PROFIBUS ...
«» Industrial Ethernet, e.g., PROFINET, EtherCAT, EtherNet/IP, Modbus-TCP ...
The right solution for every need
Thanks to our wide range of high-voltage test equipment, we have the right solution for virtually any application—from individual test units and custom test systems to complete high-voltage test bays.
Individual testers
Single-unit high-voltage testers are ideal for applications where only high voltage test is high voltage test .
- Suitable for:
- Manual testing with test guns
- Test voltages up to 100,000 V and higher
- Automation
- Laboratories
- Advantages:
- Low purchase cost
- Easy to use
- Compact design
- Disadvantage:
- Each test method requires a specific testing device
Multifunction testers
Multifunction testers provide for applications where multiple test methods need to be device in a single device .
- Common combinations:
- high voltage test insulation test protective conductor test function test
- Ideal for:
- End-of-line test stations
- Mass production
- Automation
- Laboratories
- Advantages:
- Higher upfront costs, but more cost-effective than multiple individual testers
- Centralized Control and Documentation
- Greater efficiency through fast, automated testing procedures
- Integration of automatic test method switching
- Integration of automatic measurement path switching
- High flexibility
- More space-saving than multiple individual test units
Test equipment with high-voltage transformer separate high-voltage transformer
This design is typical for high test voltages and currents, as well as the resulting large high-voltage transformers.
In this configuration, high-voltage transformers are typically operated in individual test setups, test booths, or test fields.
Complete solutions with test booths
high voltage test a test booth is particularly well-suited for small to medium-sized test objects. The booth is clad in metal—either on the inside only or additionally on the outside as well—and thus provides reliable protection against accidental contact in accordance with applicable safety standards.
The test equipment and test booth can be flexibly positioned on a height-adjustable workbench to ensure ergonomic working conditions. By using matrix switching, the system can also be expanded to run tests run automatically and efficiently at multiple test points.
- Ideal for applications requiring full protection against accidental contact.
- Suitable for:
- Test voltages up to 50,000 V and higher
- Production
- Laboratory
- Material testing
- Advantages:
- Automatic tests
- Secure testing
- Compact design
- Viewing window for observation
- Height-adjustable workstation
- Extension to multiple matrix points
- Secure, standards-compliant door monitoring
- With door lock if needed
- Test booth suitable for TE testing
Test fields
Our testing equipment is primarily used in test cells, particularly for medium-sized to large test specimens. A test cell provides optimal conditions for large and/or heavy test specimens and can be flexibly configured, for example with multiple access doors or variable equipment.
The grounded protective cage provides reliable protection against accidental contact and meets the highest safety standards for high-voltage testing.
- Ideal for applications requiring complete protection against accidental contact. Typical examples include large motors, cable reels, high-voltage insulators …
- Suitable for:
- Suitable for test voltages up to 100.00 V and higher
- Production
- Laboratory
- Material testing
- Advantages:
- Automatic tests
- Secure testing
- Secure, standards-compliant door monitoring
- With door lock(s) if required
Customized solutions
Whether it involves high-voltage testing of rail vehicles, insulated power tools, or specialized coils for the automotive industry:
Tell us your testing requirements—we’ll provide the right solution.
Thanks to our many years of experience and the successful completion of numerous projects, we are a reliable and competent partner for demanding testing tasks.
Good to know:
The high voltage test
Why high voltage test is high voltage test important.
Washing machines, electric motors, lighting fixtures, and nearly all other electrical products and systems can only be operated safely if they have high electrical insulation strength. In the worst-case scenario, poor insulation can lead to electrical accidents resulting in serious injury or even death, or cause significant damage to the product. Using high voltage test , you high voltage test determine the insulation quality and dielectric strength of your test object. Electrical products are tested using test voltages typically up to 6,000 V.
To high voltage test virtually all areas of high voltage test , SCHLEICH offers a very extensive range of high-voltage testers rated from 3,000 to 100,000 V.
Where device under test is device under test on device under test .
Tests are performed between all live conductors, as well as between live conductors and the enclosure.
Wouldn't an insulation resistance test work just as well? In principle, yes, since both tests measure between the same test points. However, the high voltage test significantly higher test voltages, which device under test every device under test a real endurance test!
In addition, the high voltage test places a device under test heavy load on the device under test . This rigorous quality analysis reliably identifies insulation weaknesses.
The high voltage test these faults.
- Insulation clearances are too small
- Insufficient dielectric strength
- Insulation faults between any electrical conductors and theprotective earth conductor equipment housing
- Insulation defects between electrical conductors
- Poor insulation in air gaps and creepage distances
- High-energy and low-energy strikes
- Micro-discharges that may not cause damage until later during operation
What are the "good"/"bad" criteria?
high voltage test always evaluated based on the current flowing between the two high-voltage terminals. This current is also leakage current as leakage current . It must not exceed a preset limit. If this limit is exceeded, there is an insulation fault.
high voltage test AC or DC?
Whether AC or DC voltage can be TEST VOLTAGE as TEST VOLTAGE depends on the standard applicable to the product under test. It is often permissible to Test using DC voltage as well. In this case, the TEST VOLTAGE must beTEST VOLTAGE TEST VOLTAGE 1.5 times theTEST VOLTAGE . At first glance, this seems significantly higher. However, considering that theTEST VOLTAGE isTEST VOLTAGE root-mean-square (RMS) value, this is put into perspective. The peak value of theTEST VOLTAGE the RMS value multiplied by √2, i.e., 1.41 times the RMS value.
Test objects often have unavoidable capacitances that are attributable to filter capacitors or their physical design.
During high voltage test a high capacitive leakage current can leakage current through these capacitances. However, this does not necessarily indicate a fault, as the physical design of the test object leakage current allows this leakage current to flow. To exclude the portion of the current caused by the test object’s capacitance, DC HiPot tester can apparent power between active and apparent power .
When testing with DC, however, Capacitance plays Capacitance a minor role. After the Capacitance is charged, only a very small insulation current Capacitance through the insulation resistance. Just as in an AC test, this current must not exceed a specified limit. In addition,DC HiPot tester determine leakage current insulation resistanceDC HiPot tester the TEST VOLTAGE the leakage current . In a high voltage test DC, the tester thus also functions as a megohmmeter.
How is the high voltage test ?
Whether manual, semi-automatic, or fully automatic: SCHLEICH’s high-voltage testers allow you run all testing tasks quickly and efficiently. They are all designed according to the “KISS principle”—that is, following the motto: “Keep It Simple and Smart.” This principle serves as the guiding philosophy for all SCHLEICH products.
A manual test is performed using high-voltage test guns. To do this, the operator manually moves the safety test guns from test point to test point. Despite the manual process, the test can be fully documented. A typical application is the testing of electrical products, control cabinets, and machines in accordance with the Machinery Directive EN 60204.
For the needs of manufacturing facilities, semi- or fully automated high-voltage testers or test systems provide more provide . These are equipped with a relay switching panel (relay matrix), which automatically routes the high voltage to the desired test points.
Depending on the application, test systems of this type can have up to 1,000 test ports.
Safe performance of high voltage test.
Working with high voltage is dangerous. Therefore, it is essential to strictly adhere to the relevant safety regulations and measures to prevent accidental contact.
Safety measures may only be omitted if the current output of the high-voltage tester is limited to a maximum safe current. The safety current limit restricts the Test current a maximum of 3 mA AC or 12 mA DC. However, such high-voltage testers may only be used if the leakage current device under test even in a properly functioning device under test is leakage current the safety current limit. Since many test objects, such as electric motors, naturally exhibit a capacitive leakage current often significantly higher than 3 mA AC, a safety current limit cannot be used with these test objects. Therefore, a safety current limit cannot be used with these test objects.
However, a second criterion must also be taken into account. Due to their design, many test objects have an unavoidable Capacitance. In this Capacitance Flows capacitive leakage current. The Capacitance but can also charge save. If this is the case, the maximum stored energy must not exceed 350 mJ (VDE 104/EN 50191). Otherwise, the operator may be at risk of electric shock when touching the test object due to the presence of residual charge.
If a safety current limit cannot be implemented, protective measures such as test enclosures, test booths, light curtains, or safety chains are used.
The potential-free high voltage test.
In most applications, the potential-free high voltage test is high voltage test . This is typical for safety test guns. It ensures the highest safety the operator. For high voltages of 15,000 V or higher, the high voltage is usually grounded on one side.
What to high voltage test during a high voltage test .
To perform the high voltage test , you must ensure that the device under test is device under test connected to the high voltage. There are three different ways to verify that the test was performed correctly:
- Specifying a minimum current—useful for test objects that leakage current a leakage current . When this minimum current flows, you can be sure that the device under test voltage device under test voltage .
- During aTEST VOLTAGE , the leakage current TEST VOLTAGE leakage current low. However, contact monitoring can be performed by measuring the charging current at the start of the high voltage test run.
- Measurement of the device under test voltage applied to device under test . To do this, two additional sense leads are device under test to the device under test in addition to the test leads. This type of measurement is often referred to as a four-wire measurement. The two sense leads are used to measure the high voltage device under test applied to device under test . This voltage compared to a reference value. That is why we call this verification procedure a voltage back-measurement.
The requirements for ahigh voltage test device.
Many national and international standards require a power rating of > 500 VA at a continuous current of 100 mA AC and a short-circuit current of 200 mA AC. Typical maximum test voltages are 3,000 V or 6,000 V.
SCHLEICH high-voltage testers are equipped with a responsive electronic high-voltage source. This enables the precise, sequential execution of voltage profiles.
SCHLEICH high-voltage testers are based on over 30 years of experience. From the very beginning, the measurement technology has been digital rather than analog. We always use state-of-the-art technologies.
Here's how to find the right high voltage test device.
There is a wide range of high-voltage testers available on the market, and the number of configurable features is overwhelming.
However, by keeping a few basic points in mind, you’ll easily find the right device.
If you onlyrun high-voltage tests using AC or DC on your device under test , a single-test-mode tester is the right choice. It includes only a single test method: the high voltage test.
device under test , if the device under test also requires a more comprehensive safety and functional check, we recommend our combination testers/multifunction testers. These allow various test methods—such as high-voltage, insulation, and protective earth resistance test—to be conveniently device in a single device . The test method switching within device that no test leads need to be manually reconnected to device under test the test.
In addition, a combination of safety and comprehensive functional tests is also frequently required. For function test , the test set device under test function test the device under test with operating voltage to verify its electrical operating characteristics.
Thanks to the intuitive and user-friendly operation of our high-voltage testers, every test is performed quickly, accurately, and cost-effectively.
The SCHLEICH Product Portfolio – Expect More!
High-voltage testers
- TEST VOLTAGE 3000 V, 6000 V up to 120 kV AC/DC
- Power rating from 500 VA to 35 kVA
- With electronically controlled high voltage
- With built-in discharge discharge monitoring
- Standard interfaces such as RS-232, Ethernet/LAN, and USB for communication with a PC
- 24 V digital I/O for PLC communication
- Expandable to Industrial Ethernet and fieldbus systems for PLC
- Virtually unlimited storage space for test plans and test results
- All parameters are set via the software
Custom testing equipment and systems
- Combination Tester/Multifunction Tester
- Automatic test machines/test systems with small to complex relay matrices
- Complete testing stations
- Production lines with transfer systems
- EOL workstations
- Large-scale facilities
Comprehensive service
- Professional consulting backed by expert knowledge
- Careful initial startup
- Regular certified calibration
- After-sales support from our service team
- Service by phone, via remote support, or on-site
- Customized training programs
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