Gas Medium Supervision Ssimg (63); Function Revision History; Identification; Application - Hitachi Relion 670 Series Applications Manual

Section 16
Monitoring
Setting
VGenZeroDb
IGenZeroDb
VBase (set in
Global base)
IBase (set in
Global base)
16.2

Gas medium supervision SSIMG (63)

16.2.1

Function revision history

Document
revision
A
B
C
D
E
F
G
H
J
M
N
16.2.2

Identification

Function description
Insulation gas monitoring function
16.2.3

Application

Gas medium supervision (SSIMG ,63 ) is used for monitoring the circuit breaker condition. Proper arc
extinction by the compressed gas in the circuit breaker is very important. When the pressure becomes
too low compared to the required value, the circuit breaker operation shall be blocked to minimize the risk
of internal failure. Binary information based on the gas pressure in the circuit breaker is used as an input
signal to the function. The function generates alarms based on the received information.
240
Short description
Zero point clamping in % of
Vbase
Zero point clamping in % of Ibase 3
Base setting for voltage level in
kV
Base setting for current level in A
Product History
revision
2.2.1 -
2.2.1 -
2.2.2 -
2.2.3 -
2.2.3 -
2.2.3 -
2.2.4 -
2.2.4 Binary quality inputs SENPRESQ and SENTEMPQ have been added for pressure and
temperature sensor signals in order to control alarm and lockout signals. Whenever there is
no sensor, the quality of the binary input will be low. If sensor quality is low, then lockout and
alarm signals will get reset.
2.2.5 -
2.2.6 -
2.2.6 -
IEC 61850
identification
SSIMG
© 2017 - 2023 Hitachi Energy. All rights reserved
Selected Comment
value
25% Set minimum voltage level to 25%
Set minimum current level to 3%
15,65 Set generator rated phase-to-phase voltage
3690 Set generator rated current
IEC 60617 ANSI/IEEE C37.2
identification device number
- 63
1MRK511407-UUS Rev. N
GUID-358AD8F8-AE06-4AEA-9969-46E5299D5B4B v4
GUID-7F31EFA5-F8D8-4D8D-85DA-3418F70ABE94 v3
GUID-AD96C26E-C3E5-4B21-9ED6-12E540954AC3 v5
GUID-A840E38C-CC42-4995-A569-A6092DDB81B2 v7
Phasor measurement unit RES670
Application manual