Ashida ADR233B - Application Data

ADR233B
Doc ID : ADR233B/IM/01
Ref ID : ADR233B/IM/PS
Rev No. : 05
Page No. : 118 of 479
Under/ Over Voltage.
Describes all the under and over voltage settings and logic needed for under voltage or over
voltage function.
V/Hz Protection.
Describes all the V/Hz protection settings and its logic needed for protection.
Breaker Failure Setting.
Describes all the Breaker Failure settings and logic needed for Breaker failure on internal
protection trip or external BF initiation.
Programmable Logic control.
Describes programmable and logic equation that the user can build their own logic for various
application.
Thermal Overload.
Describes all the Thermal overload settings and logic needed for thermal overload function.
Through fault .
Describes the entire through fault settings and its logic needed for through fault monitoring
function.
4.2 Application Data
It is required to have the field data which is used to calculate the parameter settings which has
to be set in the IED. Hence the following inputs are required to calculate the parameter settings
in the relay.
• Power transformer data: MVA rating, winding configurations with grounding details and
voltages, impedance, etc.
• Highest expected load current
• Current transformer primary and secondary ratings and Connections
• Voltage transformer ratios and connections, if used
• System phase rotation and nominal frequency
• Type and location of resistance temperature devices (RTDs), if used
• Expected fault current magnitudes for ground and three-phase faults