Description
Key Benefits
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- Variable dual-slope percent differential protection
- Magnetizing inrush and overexcitation blocking
- Phase & ground overcurrent elements
- Adaptive time overcurrent using FlexCurves elements
- Underfrequency/Overfrequency Protection
- Frequency rate-of-change Detection
- Overexcitation (V/Hz) Protection
- Restricted Ground Fault Protection
- Transformer overload protection
- Metering – current, voltage, sequence components per winding, power, energy, voltage
- THD and harmonics up to the 21st
- Expanded (doubled) sequence of event recorder and waveform capture (256 time stamped events and
up to 128 cycles of oscillography data at a sampling rate of 64 samples per power cycle) - Tap position up to 50 tap positions
- Ambient temperature /analog transducer input
- Analog transducer input
- Oscillography & Data Logger – 10 records up to 32 power cycles
- Simulation mode and playback capability.
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Applications
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- Primary and back-up protection and management of small, medium and larger power transformers, autotransformers and reactors
- Transformer asset monitoring using Hottest Spot, Loss-of-Life and Ageing Factor
- Stand-alone or component in automated substation control system
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