Complete set by a basic differential-phase HF defense of WL-110 kV with the functions of reserve defense

Complete set by a basic differential-phase HF defense of WL-110 kV with the functions of reserve defense

The complete set of defense can consist of one or a few microprocessor devices and must realize next functions:

· differential-phase defence with the transmission of signals to on HF to the channel;

· controlled from distance protecting from all kinds between phase contactors and contactors to earth;

· rebuilding from loading;

· four step current protecting from contactors with the organ of direction of power a zero sequence;

· possibility of starting DPD (different phase defense) from reserve defense;

· operating on the three-phase disconnecting;

· exposure of disrepair of current chains;

· blocking at the disrepair of chains of tension;

· blocking at swinging of power;

· protecting Complete set by a basic differential-phase HF defense of WL-110 kV with the functions of reserve defense from the incompletely phase mode (PIP);

· autoreclosing ;

· amount of groups setpoints – not less than 4th;

· distance-finding to the site of damage;

· real-time clocks with synchronization from an outsourcing;

· free-programmable logic;

· logic of teleacceleration of reserve defense;

· internal recorder of events;

· oscillographic testing;

· energyindependent memory;

· measurings: currents, tensions, frequency, power;

· self-diagnostic of device;

· liquid-crystal screen on a front panel;

· user-programmable light-emitting-diode indicators for signaling;

· signaling about the state and functioning of device;

· support of protocol of MEK 61850, and presence of standard international protocols of exchange by information for integration in ACS Complete set by a basic differential-phase HF defense of WL-110 kV with the functions of reserve defense;

· front port of Ethernet (Rs232) for connection with a device;

· back port with an optical fibre ethernet-interface for connection with ACS substations;


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Документ Complete set by a basic differential-phase HF defense of WL-110 kV with the functions of reserve defense