ABB Bay Control Terminal REC 580 for Gas-insulated Switchgear and High-voltage Substations

ABB Bay Control Terminal REC 580 for Gas-insulated Switchgear and High-voltage Substations

Description 

The bay control terminal REC 580 is a numerical control device for the automation of complex high-voltage substations. It is a product in the ABB PANORAMA station automation system.

Because of its modular structure, the unit can be adapted to suit the specific station layout and the modular architecture is designed for parallel processing. The unit has a station bus (LON) and a process bus (MVB) interface. Actuators and sensors can be connected via the process bus.

REC 580 is a numerical multifunction control terminal for the automation of gas-insulated switchgear and complex outdoor high-voltage substations. It performs control and automation functions for the High Voltage switchgear bays. Simple configurable standard functions and macros enable specific user requirements to be implemented quickly and reliably. The terminal is configured using a graphical programming language conforming to IEC 61131.

A REC 580 is also a cost-effective replacement for logic modules, control contactors, interlocking relays, control boards and alarm tables in conventional switchgear bay control systems. It also eliminates the associated wiring on a massive scale.

The terminal is able to communicate with other bay control units, protection relays in the bay, telemetering stations or other devices via the station bus interface, providing they are also equipped with the same interfaces as the REC 580. It can also be fully integrated in a central substation control system (Fig. 1).

The REC 580 bay control terminal supports the connection to process interfaces with advanced sensors and actuators (PISA), and conventional sensors (CT and PT) and operating mechanisms.

The command sequences and the correct operation of the switchgear are performed with supervision and safety according to industry standard requirements for personnel and equipment security.

The primary system variables current, voltage, active and reactive power, power factor and frequency are available for load measurements. Provision is also made for transmitting metered power values or power counting impulses to the central substation control system.

Functions

Switchgear control:

To ensure fail-safe control, commands from the local control panel respectively from the local control module of the REC 580 or the substation automation system are issued via binary outputs either by a 1½ channel (independent control signal plus a common control signal) or a 2 channel type (two independent control signals). The signals that continuously indicate the actual positions of the switchgear are duplicated (double indication) and subjected to a plausibility test.

All switchgear commands are interlocked both with respect to the other switching devices in the bay and stationwide to exclude dangerous, unwanted, inadmissible or simultaneous switching operations. The monitoring and interlocking control functions are programmed in function modules and can be easily adapted to the requirements of the specific installation and the dedicated operation philosophy.

The bay control terminal REC 580 can be freely configured to control and monitor all the functions in a switchgear bay. The same applies to the interlocking logics included in REC 580. Logical connections beyond a single bay are established either by a serial exchange of data via the serial station bus type LON (preferred) or by a conventional parallel ring line (option) linking all the bays.

The operator controls the bays via a local control unit, a local mimic or the substation automation system.

Auto-reclosure function:

Different auto-reclosure cycles can be performed according to the capabilities of the circuit-breaker. The delay time for fast or slow auto-reclosure can be set independently for each cycle. If single-phase auto-reclosure has been set, the first shot is single-phase and the subsequent shots three-phase. Auto-reclosure can be initiated either internally in the bay unit or by external protection devices via opto-coupler inputs.

Continuous mode synchrocheck function:

The optional synchrocheck function determines the difference between the amplitudes, phase-angles and frequencies of two voltage vectors. A dead line or dead bus voltage check logic is also included. The release or blocking signal at the output is applied to the control logic. An AIM02 module is required for the synchrocheck function. Analog values from the process bus type MVB are not supported.

Measurement function:

The measurement function calculates the single-phase rms values of voltage and current and the single and three-phase active and reactive powers. In the case of three-phase voltage inputs, either phase-to-neutral or phase-to-phase voltages can be formed.

The bay control terminal REC 580 can be equipped with different transformer units.

Event recording function:

The bay control terminal REC 580 records the last 1000 (configurable) events. The events can be stored in 8 queues, and the maximum configurable number of event in a queue is 1000. A real-time tag with an accuracy of 1 ms is attached to every event. Saved events can be viewed on the bay control terminal on the electroluminescence display and can be accessed at the station level and all related network control levels.

The real time clock is synchronized by a GPS or DCF via the substation automation system.

When configuring the system, the user defines which signal and status changes are handled as events.

Supervision functions:

Continuous supervision of the power system, the bay functions, the switchgear and the operation of the bay control unit itself contribute to the high availability and availability of the station as a whole. In REC 580 a watchdog gives alarm displayed on an LED on the front of the terminal and the alarm signal is processed in the station control system when a failure is detected. In particular, the integrity of the external and internal supply voltages are monitored. The correct function and tolerances of A/D converters are verified by cyclically converting a known reference voltage. Special background algorithms regularly check the processor memories. The execution of the application program is supervised by a watchdog in each of the processors.

Because of the extensive self-diagnosis and monitoring functions, the requirement for periodic maintenance and testing is reduced.

Stock part list:

500PSM03A 1MRB150038R1
500CPU03 1HDF700003R5112
500CPU03 1HDF700003R5122
500CPU03 1HDF700003R6121
500PSM03 1MRB150038R1
500CPU03 1HDF700003R5122(500PBIO01-TTL 1MRB178009R002+500LBI02 1MRB178032R1)
500CPU03 1HDF700003R5122(500PBIO01-TTL 1MRB178009R002+500PBIO01-TTL 1MRB178009R002)
HAC349A HIEE300857R1机架