ABB RELION 630 Series Technical Manual page 223

1MRS757256 F
PML630/Compact Load-Shedding Solution
Technical Manual
Table 265: The unit conversion for active power
Power convention setting
Positive W
Negative W
Positive kW
Negative kW
Positive MW
Negative MW
Table 266: The unit conversion for available power
Power convention setting
Positive W
Negative W
Positive kW
Negative kW
Positive MW
Negative MW
This module calculates the available power of power source as per the Ava power
mode, Ava power relative and Maximum Ava power settings as shown in
Table 267: The available power calculation
Ava power mode Calculated available power
setting
Set Max Ava Available power = Maximum Ava power setting
power
Set Ava Pow Available power = POWER input × Ava power relative setting
relative
Comm Max Ava Available power = MAX_POWER input, provided input AP_GOV_QVAL is Good.
power
Comm spin Available power = POWER input + MAX_POWER input, provided input
reserve AP_GOV_QVAL is Good.
Power management functions
Input
POWER
POWER
POWER
POWER
POWER
POWER
Input
MAX_POWER
MAX_POWER
MAX_POWER
MAX_POWER
MAX_POWER
MAX_POWER
If POWER input × Ava power relative setting ≥ Maximum Ava
power setting or POWER input <0.0,
Available power = Maximum Ava power setting
If AP_GOV_QVAL input is Bad, Available power = Maximum
Ava power setting
If AP_GOV_QVAL input is Bad or POWER <0.0, Available
power = Maximum Ava power setting
Section 7
Calculated active power
POWER × [0.001]
POWER × [-0.001]
POWER × [1]
POWER × [-1]
POWER × [1000]
POWER × [-1000]
Calculated active power
MAX_POWER × [0.001]
MAX_POWER × [-0.001]
MAX_POWER × [1]
MAX_POWER × [-1]
MAX_POWER × [1000]
MAX_POWER × [-1000]
Table 267.
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