5. Warning and alarm system organization

Must be ensured warning and alarm system.

Division signaling alarm and warning should be carried out by assigning each signal a particular class or level.

Alarm and warning operation must be accompanied by a difference of beeps, and displays different colors.

The appearance of these events and their disappearance should be recorded in the archives of ACS TP time-stamped and with the signs of signal nature (alarm, warning).

At signal acknowledgment should be recorded a specific WS OP from which receipting. Signal acknowledgement must be carried out from WS OP, at the same time it should stop flashing alarm tags of the object.

It must be possible to form group alarm, generalizing predetermined set of signals related to one connection, one switchgear etc.

1. Warning system

Warning system should provide operating personnel:

• at rejecting the established limits and return to the normal state of technological parameters

• when the state of automatic devices is changed

• when technological devices of AT triggered,

• at action of blocking, ASA (automatic standby activation) of power supplies,

• when an error occurs ACS TP hardware (including monitoring system of transformer equipment),

• when a power failure, etc.

1. Alarm system:

• at deviations in emergency response setting of RP & SA.

6. Registration of emergencies

Registration and recording of process information into historic data base in specified format and within specified time intervals shall be provided:

• Values of measured analogue signals.

• Any variation of digital signals.

• Parameters going beyond alarm and warning setting and returning to normal values.

• Control commands.

• Diagnostic information.

• Results of fault location identification (FLI) on TL.

• Operation of process alarm system’s devices.

• Actuation and reset of relay protection and emergency automation devices, oscillograms of emergency processes.

• Switch-over of equipment operation modes and automatic devices using on-line control system.

• System events, generated inside the ACS TP (including self-diagnostics data via soft- and hardware).

• Messages on operator’s actions and systems messages.

At recording parameters in a database, the registration of technological parameter should be recorded:

1. At appearance of this information in the actual source of information in accordance with the protocol of information exchange

2. In the absence of assigning timestamp information source – the database records the time of registration of information in its entry in the archive database

7. Prоviding current and archived data for operating personnel and other users

The ACS TP data visualization shall be performed at the personnel workstations (WS) and comprise the following WSs:

• WS of operating personnel (main);

• WS of operating personnel (backup);

• WS of ACS TP SS engineer;

• remote viewing display;

• WS of operating personnel of higher dispatcher control level

• WS of RP & SA engineers of higher dispatcher control level;

The number of WS, as well as their place of accommodation (SS, BEN, ES) are specified in the detailed design stage.

WS of higher control level should provide features such that the local workstations.

Any operating personnel WS must provide an opportunity to:

• Visualization of SS equipment status, taking into account blocking in operating control schemes.

• Displaying on mimic panels (with dynamic status measurement) of process parameters values, which are important for mode maintenance.

• Displaying of equipment status with indication of abnormal values.

• Monitoring, recording and displaying of warning and alarm signals.

WS of engineer of ACS TP SS should ensure:

• The ability to configure the system

• Monitoring the status of hardware and software systems

• Configuration and formation of various reports

• Backup and data recovery.

WS of engineer of RP & SA should provide:

• possibility of configuration and setting of RP & SA terminals

• Browsing the emergency events from different RP & SA terminals with the possibility of combining the time-sequence of emergency events.

Remote viewing display:

• Generalized data submission to SS main control room