Features And Functions; Protection Functions; Control Functions; Measurement Functions - GE MiCOM P747 Agile Technical Manual

Chapter 1 - Introduction
3

FEATURES AND FUNCTIONS

3.1

PROTECTION FUNCTIONS

The P747 provides the following protection functions:
Phase segregated biased current differential high speed busbar protection
Check Zone segregated biased phase current differential high speed busbar protection
Definite Time overcurrent protection (2 stages)
IDMT overcurrent protection (2 stages)
Dead zone phase protection (short zone between CTs and open CBs)
CB Failure (auxiliary contacts or fast undercurrent)
CB Failure and isolator state monitoring
Lockout
Undervoltage control
VT blocking scheme based on V<
3.2

CONTROL FUNCTIONS

Watchdog contacts
Read-only mode
NERC compliant cyber-security
Function keys (up to 10)
Programmable LEDs (up to 18)
Programmable hotkeys (2)
Programmable allocation of digital inputs and outputs
Fully customizable menu texts
Circuit breaker control, status & condition monitoring
Trip circuit and coil supervision
Control inputs
Power-up diagnostics and continuous self-monitoring
Dual rated 1A and 5A CT inputs
Alternative setting groups (4)
Graphical programmable scheme logic (PSL)
Fault locator
3.3

MEASUREMENT FUNCTIONS

Measurement Function
Measurement of all instantaneous & integrated values
(Exact range of measurements depend on the device model)
Disturbance recorder for waveform capture – specified in samples per
cycle
Fault Records
6
Protection Function
Feature IEC 61850
FnkGGIO
LedGGIO
XCBR
PloGGIO1
RFLO
IEC 61850
RDRE
MiCOM P747
IEC 61850 ANSI
PhsPDIF 87BB/P
CzPPDIF 87CZ/P
OcpPTOC 50/P
OcpPTOC 51/P
DzpPhsPTOC 50DZ
RBRF 50BF
RBRF 89
27
VTS
ANSI
52
ANSI
MET
DFR
P747-TM-EN-1
P747-TM-EN-1.1