Firmware and Service Manual P54x/EN VH/La4
Version History
MiCOM P543, P544, P545 & P546
(
VH) 16-37
H
Relay type: P54x …
Software
Version
Major Minor
Hardware
Suffix
Original
Date of Issue
Description of Changes
S1
Compatibility
Technical
Documentation
52
A K
Release of P543, P544, P545 & P546 with distance protection
Chinese interface
Replacing the existing DNP3 with the DNP3 evolutions
Addition of a current but no volts trip option to Switch on to
Fault and Trip on Reclose feature (SOTF/TOR)
Replacement of existing negative sequence overcurrent with
multi stage (2 IDMT + 2 DT) negative sequence overcurrent.
Addition of IDG curve, commonly used in Sweden, to Earth
Fault & Sensitive Earth Fault (involves moving settings)
Reduction of all TMS step sizes to 0.005
Addition of Channel propagation delay Statistics and Alarms
Changes to CTS so both techniques can be selected together
Regrouping of CTS settings
Addition of four stages of under frequency protection and two
stages of Overfrequency protection
Addition of df/dt protection
Changes to Under and Overvoltage to enable each stage to
be independently set
Extensions to the checksync VT position setting
Replacing fixed Trip on Close (TOC) Delay with a setting
Improvements to slow power swing detection
Changes to distance count strategy to restore the same
operating time when phase differential protection is enabled
Changes to Permissive Inter Trip (PIT) logic to enable the user
to select either local or remote current to be used.
Includes local time zone settings for Date & Time
Patch for V2.14
P54x_EN_MJ74
+ addendum
P54x_EN_AD_J84
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