ABB REF615 L - Signals

Many applications require several steps using different current start levels and time
delays. EFxPTOC consists of three different protection stages.
• Low EFLPTOC
• High EFHPTOC
• Instantaneous EFIPTOC
EFLPTOC contains several types of time-delay characteristics. EFHPTOC and
EFIPTOC are used for fast clearance of serious earth faults.
4.2.1.8 Signals
Table 268: EFLPTOC Input signals
Name Type Default Description
Io SIGNAL 0 Residual current
BLOCK BOOLEAN 0=False Block signal for activating the blocking mode
ENA_MULT BOOLEAN 0=False Enable signal for current multiplier
Table 269: EFHPTOC Input signals
Name
Type Default Description
Io SIGNAL 0 Residual current
BLOCK BOOLEAN 0=False Block signal for activating the blocking mode
ENA_MULT BOOLEAN 0=False Enable signal for current multiplier
Table 270: EFIPTOC Input signals
Name
Type Default Description
Io SIGNAL 0 Residual current
BLOCK BOOLEAN 0=False Block signal for activating the blocking mode
ENA_MULT BOOLEAN 0=False Enable signal for current multiplier
Table 271: EFLPTOC Output signals
Name
Type Description
OPERATE BOOLEAN Operate
START BOOLEAN Start
Table 272: EFHPTOC Output signals
Name
Type Description
OPERATE BOOLEAN Operate
START BOOLEAN Start
Section 4 1YHT530004D05 D
Protection functions
268 615 series
Technical Manual