SPRECON-E-C-SYNC - Sprecher Automation - #2

• Voltage measurement

- Nominal voltage: 100/110 V AC

- Operating range: 0 to 120 %

- Accuracy: 0.5 %

• Frequency measurement

- Operating range at 50 Hz: 45 - 55 Hz

- Operating range at 16.7 Hz: 14.7 - 18.7 Hz

- Accuracy: 1 mHz

• Phase angle difference

- Operating range: ± 180°

- Accuracy: 0.5°

• Max. number of inputs/outputs per slot

- Up to 20 digital inputs 24 to 220 V DC and 110 to 230 V AC / 50/60 Hz

- Up to 20 digital outputs 250 V AC/DC

- Up to 10 digital control outputs 250 V AC/DC

- Up to 8 analog inputs or 4 outputs

0 to ±20 mA / 0 to ±10 V

- Up to 8 measurement inputs

- 1 A, 2 A, 5 A or 10 A

- 50 V to 130 V

- 16.7/50/60 Hz

• Power supply

- 24 to 60 V DC or 110 to 250 V DC and 110 to 230 V AC / 50/60 Hz

• IEC60870-5-101/-103/-104

• IEC61850 (on request)

• Modbus

• LAN

-1/2 x Ethernet 10/100 Mbit/s (RJ45) or -Ethernet switch for optical ring 2 x opt. (BFOC) and 1 electr. ]RJ45)

• RS232

• RS422/485

• Fibre-optic

Acc. to IEC60068-2, IEC60255-5, IEC60255-21, IEC60870-2-1, IEC61000-4, EN55022, CE designation

• Recommended temp.: -5 bis +55°C

• Limits: -25 to +70°C (on request)

• Attached or detached mountable

• Full-graphical colour display

(high resolution)

• 25individually configurable LEDs

Command initiation for the circuit breaker is finally approved by the synchro-check, which monitors the synchronizing condition as well as the voltages.

The status of the synchro-check can be simultaneously requested. In this mode, only the current status (synchronous, asynchronous, dead line, dead bus) is indicated.

Beside application of SPRECON-E-C-

SYNC as a stand-alone device, the synchro-check functionality can be al­so integrated into a SPRECON-E-C bay computer together with other control functions.

SPRECON-E-C-SYNC measures two voltages with regard to phase, fre­quency and voltage difference in order to interconnect grids which are under voltage.

SPRECON synchro-check may act as a decentralized or a centralized system. It can be either activated on request or used for continuous monitoring.

Various conditions can be defined for command output blocking.

Beside the synchro-check function, the voltages can be simultaneously moni­tored.

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Grids can be either synchronous or asynchronous (floating).

Synchronous mode

In synchronous mode, the differential frequency is lower than the adjustable limit.

As an additional synchronizing condition, the phase difference between line and busbar voltage must be within pre-defined limits.

Asynchronous mode

In asynchronous mode, the differential frequency is higher than the adjustable limit. Command initiation is approved at minimum angle difference. Program, command and switch operating times are simultaneously observed as well as the slip.

Frequency comparison between synchronizing voltages

Operation mode (synchronous / asynchronous) as well as differential frequency exceedings are observed by frequency comparison. Both the limits for synchronous operation mode and permitted range of the differential frequency can be individually configured.

Phase comparison between synchronising voltages

The limits for the differential phase are individually configurable. A system-specific phase offset can be additionally integrated into the calculation (i. e. due to phase rotation within a transformer).

Voltage range monitoring

If one/both voltage/voltages exceeds/exceed the limits, synchro-check can be blocked by voltage range monitoring.

Both release of voltage range blocking and the limits can be individually configured.

Differential voltage detection

If the differential voltage exceeds the limits, syn­chronous comparison can be blocked by differential voltage detection.

Both release of differential voltage blocking and the limits can be individually configured. Thereby, different values are allowed for synchronous or asynchronous comparison.

Zero-voltage detection

If one/both voltage/voltages is/are below a certain limit, synchro-check can be blocked. This function is realized by voltage monitoring of the synchronizing voltages.

Blocking by voltage monitoring

If the live condition is not fulfilled, synchro-check can be by-passed by voltage monitoring. Both release of blocking and the limits can be indi­vidually configured.

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D-10317 Berlin, Hauptstrasse 13

Tel: +49/(0)30/55762-241, Fax: +49/(0)30/55762-240

www.sprecher-automation.de

58-100 Swidnica, ul. tqczna 4

Tel: +48/(0)74/85135-31, Fax: +48/(0)74/85135-32

www.sprecher-automation.pl

A-4018 Linz, Franckstrasse 51 Tel: +43/(0)732/6908-0, Fax: +43/(0)732/6908-321

A-1210 Wien, Ignaz-Köck-Strasse 10 Tel: +43/(0)732/6908-601, Fax: +43/(0)732/6908-5601 www.sprecher-automation.at

12.1.101.27en A