ABB RELION 630 Series Product Manual page 34

Power Management
PML630/Compact Load-Shedding Solution
Product version: 1.2.1
Table 30. Network circuit breaker handling (NCBDCSWI) main settings
Parameter
Block override
CB Pow consider
Snd CB Interm time
Rcv CB Interm time
Table 31. Load-shedding core (LSCACLS) main settings
Parameter
Disable LS SubNetw
Enable LS SubNetw1...4
SubNetw1...4 Man Prio
SubNetw1...4 Man Pow
Operation
SubNetw Abs offset
SubNetw Rel offset
Man load shed mode
Table 32. Supported load-shedding functions
Functions
Fast load-shedding function
Slow load-shedding function
Manual load-shedding function
Extended load-shedding function
34
Function
NCBDCSWI
NCBDCSWI
NCBDCSWI
NCBDCSWI
Function
LSCACLS
LSCACLS
LSCACLS
LSCACLS
LSCACLS
LSCACLS
LSCACLS
LSCACLS
Description
Load-shedding action based on a contingency situation is triggered by
the activation of the protection function or outage of a generator or grid
transformer or tie feeder or a change in the network configuration (for
local power network area).
Load-shedding action based on the operation of the overcurrent
detection function for the generator or grid transformer power source
or maximum demand violation on the grid tie line (for local power
network area).
Load-shedding action based on the operator action by definition of the
load-shedding priority or by the desired amount of the required load
power relief (for local power network area).
Fast load-shedding action triggered by PML630 and accepted by
PML630 in the affected power network area from the adjacent power
network area when the load-shedding action in that area is
insufficient, that is, lesser than the calculated value, and needs to be
extended.
Value (Range)
No
IED test mode
Quality bad CB close
Quality bad CB open
CB Interm or invalid
All yes
Sending end IED
Receiving end IED
0...500
0...500
Value (Range)
Yes
No
No
Yes
0...19
0.0...999999.9
Off
On
-1000.00...1000.00
-100.0...100.0
Disable manual LS
SN Man Prio setting
SN Man Pow setting
SN Man Prio input
SN Man Pow input
1MRS757334 E
Step
-
-
10
10
Step
-
-
1
0
-
0.01
1.0
-
PML630: PML630:
Configuration A Configuration B
x x
x x
x x
x
ABB