ABB SC513 After sales service is provided for the control card of the power supply device

Description

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Protection functions
The Ekip G Touch trip unit provides all the protection functions of Ekip Touch and, in addition, provides a series of dedicated
generator protections. If Ekip is tripped, it opens the circuit-breaker and prevents it from closing again until it has been reset
manually or electrically by the operator (lockout relay – code ANSI 86).
The trip unit is provided with the following protection functions:
– Overload (L – ANSI 49);
– Time-delayed overcurrent (S – ANSI 51 & 50TD);
– Thermal memory;
– Instantaneous overcurrent (I – ANSI 50);
– Closing on short circuit (MCR);
– Earth fault (G – ANSI 51N & 50NTD);
– Earth fault on toroid (G ext – ANSI 51G & 50GTD)
– Neutral protection;
– Start-up function;
– Zone selectivity for functions S and G (ANSI 68);
– Current unbalance (IU – ANSI 46);
– Undervoltage (UV – ANSI 27);
– Overvoltage (OV – ANSI 59);
– Underfrequency (UF – ANSI 81L);
– Overfrequency (OF – ANSI 81H);
– Voltage unbalance (VU – ANSI 47);
– Differential ground fault (Rc – ANSI 87N);
– Reverse active power (RP – ANSI 32R);
– Synchrocheck (SC – ANSI 25, optional);
– Cyclical direction of phases (ANSI 47);
– Power factor (ANSI 78);
– Current thresholds;
– Power Controller function (optional).
Differential ground fault (Rc – ANSI 87N): protects against internal earth fault on generator winding. It is
required that the toroid hugs the active conductors and the ground conductor. Rc protection is integrated by
a dedicated residual current rating plug and the external toroid.