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

• Voltage measurement

- Operating range: 70 - 140 %

- Accuracy: 0.5 %

• Detection of tap position

- BCD code

- Binary code

- Ghielmetti code

• 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 PT100 inputs for 2-wire or 4-wire circuit

- 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

-ri c Ts £-

Ü ⁸

S c

-5 £■

p c _S » cd a * E .E "ï

co ~C C C

° E S.Ï

8-.Ì

Transformers with motor-driven tap changers can be controlled with auto­matic voltage regulators. Actuation of the motor drive leads to a voltage change by one tap. If the difference between actual voltage and set-point exceeds a certain limit, a regulation command ("up", "down") is initiated.

SPRECON-E-C-AVR can be adapted to customer-specific requirements to the greatest possible extent. Moreover, several units can be operated in parallel mode, which is based on the master/follower principle. Thereby, the circulating reactive cur­rent is monitored.

The AVR unit allows five different set­point values that can be selected both locally or remotely.

Reliable operation is guaranteed by staggered monitoring of under- and overvoltage with automatic tap chang­ing to the demand voltage, by function monitoring of both the motor drive and the tap changer and by integrated overcurrent blocking.

Setting data is stored into pro­grammable memory (FLASH), which therefore still contains the data after a voltage failure.

Auxiliary supply for data back-up is not required.

Beside application of SPRECON-E-C-AVR as a stand-alone device, auto­matic voltage regulation can be also

integrated into a SPRECON-E-C bay

computer together with other control functions.

"e c

"55 c

-a -c

« ^E

® "£

1 =

h ^£

o <D

J 10°

• Voltage regulation

- Definite time-delay

- Inverse time-delay

• Monitoring of tap changer

• Monitoring of motor operation time

Monitoring of tap changer limits

Monitoring of external limits

- Overvoltage monitoring

- Undervoltage monitoring

- Overcurrent monitoring

Accelerated tap changing

Regulator blocking

Parallel operation of transformers

Operation modes (manual, automatic) Tap changing (up, down)

Automatic changing to demand tap

o o

:n

"a £

£ c

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

Sprecher Automation Deutschland GmbH 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

12.1.101.26en A