Discover ZERA

Which advantages you get with products of ZERA!

High precision measurement devices

power and energy measurement devices and working standards accuracy 0.1% … 0.001% independent from measuring mode
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Portable meter test equipment

multi purpose test equipment for on site test of electricity meters Reference standards up to cl. 0.02% for verification and intercomparison Portable source systems for generation of current and voltage
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stationary meter test equipment

modular testers for all purose use
- for production tests
- R&D equipment
- volume production
- laboratories
according to IEC or national standards
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Test equipment for transformers

capable to test voltage transformers up to 250 kV and current transformers up to 10 kA in manual, semi-automatic and automatic mode. All testing is performed acc. to the IEC or country specific standards.
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Product Information/Technical Articles

  • Product Range 2012
    Screen version - 2 pages on one
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  • measurement of pure DC power even with present AC content together with a comparator
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  • PDF   60 kb
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  • Real modularity in design offers flexibility in test equipments
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  • PDF   385 kb
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  • Meter testing - a simple term with deep impact
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  • PDF   5,934 kb
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  • Methods of Instrument Transformer Testing are Changing
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  • PDF   251 kb
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  • Article "Evaluation of the accuracy of digital power comparators with harmonically distorted waveforms"
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  • PDF   2,946 kb
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