18
Note:
P: Total active power
Ps1: Alarm action threshold
Ps2: Trip action threshold
Ts1: Delay time of alarm action
Ts2: Delay time of trip action
6.7 Overload protection
In addition to reverse Overload protection, the protector can also provide time-limit overload
protection. When the percentage of three-phase average current and rated current is greater than
the set value, the protector should trip or alarm within the set time.
Note:
Iav: Three-phase mean current
Is1: Alarm action threshold
Is2: Tripping threshold
Ts1: Delay time of alarm action
Ts2: Delay time of trip action
6.8 Overpower protection
When the percentage of load power to rated power is greater than the set action value, the
protector will trip or alarm during the set action time.