Current transformers (CTs) are an important component of an electrical systems infrastructure.
The performance of CTs reflect the correct operation of metering devices, relays, and circuit breakers, and therefore, an all-inclusive approach to evaluating the condition of low-, medium-, and high-voltage CTs is important for testing service companies and utility operators.
Keeping transformers operational requires regular testing to prevent power interruption and possible damage to electrical equipment systems. When transformers fail, it can often be due in part to heat exposure over long periods of operational time. By scheduling a system of regular diagnostic testing for transformers, problems are detected early thus, helping to extend the life of this important equipment while also reducing the chance of accidents.
The Vanguard EZCT-2000C Plus Automated CT Test Set is a microprocessor-based current transformer test set, and offers the following outstanding features that can greatly increase productivity and save time during the commissioning stage:
- Performs CT excitation, current-ratio, polarity, and phase angle tests
- Measures insulation resistance and winding resistance of the CT secondary windings
- Measures the CT’s load burden
- Standalone or computer-controlled via USB or Bluetooth wireless interface
The EZCT-2000C Plus’ test leads can be connected to all the CT output terminals, and the complete CT test can be performed automatically without any operator intervention.
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