Product Details
IDV - Differential Protection, Control & Metering
IDV - Differential Protection, Control & Metering
- Overview
- Features
IEC 61850 complied IDV differential protection relays are designed to provide reliable and secure protection for both internal faults and faults occurring within the CTs zone in power transformers, autotransformers, reactances, and rotating machines.
Protection Functions
- Three-Phase Differential with Percentage and Harmonic Restraint
- Instantaneous Three-Phase Differential without Restraint
- Fault Detector
- External Fault Detector
- Restricted Earth Faults
- Phase Instantaneous Overcurrent
- Phase Time Overcurrent
- Ground Instantaneous Overcurrent
- Ground Time Overcurrent
- Negative Sequence Instantaneous Overcurrent
- Negative Sequence Time Overcurrent
- Ground Instantaneous Overcurrent (measurement ground channel)
- Ground Time Overcurrent (measurement ground channel)
- Phase Instantaneous Overcurrent with Harmonics Restraint for the Tertiary
- Voltage Dependant Instantaneous Overcurrent
- Voltage Dependant Time Overcurrent
- Ground Directional Overcurrent polarized by current
- Winding Thermal Image
- Ground Thermal Image
- Phase Undervoltage
- Phase Overvoltage
- Ground Overvoltage (measured VN)
- Overfrequency
- Underfrequency
- Frequency Rate of Change
- Load Shedding
- Overexcitation
- Breaker Failure
- Cold Load
- Ground Distance Protection
- Phase Distance Protection
- Phase Overcurrent for Distance Supervision
- Load Encroachment
- Fuse Failure Detector
- Power Swing Detector / Out-of-Step
- CT Supervision
- Coil Circuit Supervision
- Breaker Supervision
- Zero sequence filter
- Adapting the connection group
- Tap compensation
- Compensation for different CT ratios
- 2nd and 5th harmonic restraint
- Lockout (86)
- Breaker trip logic
- Breaker (KA2) monitoring and excessive number of trips
- Phase sequence selection
- Integrated simulator
- Four (4) settings tables
- Time delay elements with curve selection (IEC and ANSI)
- Control and monitoring
- Alphanumeric display (3/7/8IDV)
- Six (6) configurable command or control buttons (model 3/8IDV)
- Programmable logic
- Communications ports and protocols
- LEDs
- Configurable digital inputs (from 8 to 37)
- Configurable digital outputs (from 6 to 44)
- Time synchronization (protocol IRIG-B 003 and 123) or via communications
- Event and metering history records
- Oscillographic record (COMTRADE 99 format)
- Power supply voltage monitoring (depending on model)
- ZiverComPlus communications software
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