SYNCHROTACT CSS Synchronizing system for synchronous generators

Transcription

1 SYNCHROTACT CSS Synchronizing system for synchronous generators

2 Application Reliable synchronizing and paralleling SYNCHROTACT CSS (compact synchronizing system) is a combination system to parallel power station generators or industrial generators with an island or public network. During the paralleling process, the circuit breaker may only be closed if both voltages are approximately equal and synchronous. Otherwise, this can lead to serious interference with the network, excessive loading on the machine and, in extreme cases, cause damage to the machine. performs this function safely and reliably. Benefits No project planning costs As is pre-designed and tested, project planning costs are avoided and plant safety is increased. only needs to be installed, connected and commissioned. Fast commissioning The PC software SynView, which is included in the scope of supply, allows the commissioning to be carried out fast and simple: Simple setting and recording of parameter values Integrated transient recorder avoids need for an external plotter Rapid localization of faults using an event logger is delivered ready for installation 2 SYNCHROTACT CSS ABB

3 Features and operating modes consists of a fully automatic (AUTO) and an independent manual (MAN) synchronizing function, the selection of which is made using a rotary switch. This increases the availibilty of the plant. AUTO mode The generator s voltage and frequency are automatically brought within required operating levels by the synchronizing equipment. Then the circuit breaker is closed exactly on phase coincidence, taking the breaker closing time into consideration. MAN mode The generator s voltage and frequency are manual controlled using push-buttons located on the system s front panel. The operating levels are displayed on the instrument panels. The paralleling command, which closes the circuit breaker, is given by holding down the releasing button and pressing the command button as the phase coincide. Additional functions In versions designed for two circuit breakers, the corresponding paralleling point must be selected before starting the synchronizing process, using the push-button switch. If the function is enabled using a key switch, the circuit breaker can also be closed if one or more voltages are at zero (dead bus). By switching the control over from local to remote, automatic synchronizing can also be selected by remote control. TEST mode This mode is the same as AUTO, except that the paralleling command is not passed to the circuit breaker, but is displayed on the system. CB U1 U2 U1 U2 CB U+, U- f+, f- Line-/busbar voltage enerator voltage Circuit breaker enerator Automatic voltage regulator Turbine regulator (governor) Paralleling command Voltage adjusting commands Frequency adjusting commands U+ U- f+ f- Single line of a generator synchronizing application SYNCHROTACT CSS ABB 3

4 Design versions Single channel system Automatic synchronizing Operating mode Auto 0 Manual Test One circuit breaker Synchronizing Two circuit breakers Synchronizing Manual paralleling switch 1 CB 1 CB 2 2 Dual channel system Automatic synchronizing Synchrocheck Operating mode Auto 0 Manual Test One circuit breaker Synchronizing Two circuit breakers Synchronizing CB 1 1 Manual paralleling switch Synchrocheck CB 2 2 Single channel version The circuit breaker is closed by the synchronizing device or by manual paralleling. Dual channel version An independent synchrocheck is connected in series, in both operating modes. This allows a degree of reliability, which is already high in single channel systems, to be improved even further. It is unlikely that both channels, which are each structured differently in terms of hardware and software, will display the same malfunction simultaneously. The extra price of a dual channel system usually amounts to only a fraction of the possible consequential costs of incorrect paralleling. One or two circuit breakers In the versions designed for two circuit breakers, the connection of the selected paralleling point is integrated into the. 4 SYNCHROTACT CSS ABB

5 Components Synchronizing devices Automatic synchronizing device (single or dual channel), front panel installation Synchrocheck for manual synchronizing (dual channel only), accessible from the rear Remote indication Local/remote switch setting Readiness for operation Operating in AUTO mode Fault Synchronizing instruments Double voltmeter Synchroscope Double frequency meter Controls Key switch to enable paralleling of zero-voltage lines Control mode selector switch: remote/local Operating mode selector switch: AUTO/0/MAN/TEST Push button switch to pre-select the circuit breaker which is to be synchronized (in versions designed for two circuit breakers) Push-buttons to start or stop the synchronizing process Push-buttons to release the paralleling command and manual paralleling Push-buttons raise/lower commands for voltage and frequency Front view with all operation and display instruments Rear view of : all terminals and the synchrocheck SYN 5100 are accessible from the rear SYNCHROTACT CSS ABB 5

6 Technical data Auxiliary voltage Nominal voltage range Permissible voltage range Maximum power consumption Measuring inputs U1, U2 Nominal voltage range Permissible voltage range Nominal frequency Paralleling relays 110 to 220V AC/DC 85 to 265 V AC 85 to 375 V DC 25 W / 35 VA 50 to 130 V AC Maximum switching voltage 250 V AC / DC Maximum switching current, continuous 5 A AC / DC Max. switching power AC/DC ON 1 kva / W Max. switching power DC/AC OFF 30 VA / W Adjusting, command and signalling relays Maximum switching voltage 250 V AC/DC Maximum switching current, continuous 1.5 A AC/DC Max. switching power DC/AC ON/OFF 50 VA / W Isolation Dielectric test IEC kv Impulse voltage test IEC kv Temperature ranges 0 to 130% U n 16 ²/ ³ Hz, 50 Hz, 60 Hz Transport/storage -40 to +85 C Functionable -25 to +70 C Operation (compliance with technical data) -10 to +55 C Emission / immunity (EMC) Emission, Terminal disturbance Emission, radiated disturbance EN 55011/ CISPR 11 EN 55011/ CISPR to 0.5 MHz: 79 db 0.5 to 30 MHz: 73 db 30 to 230 MHz: 30 db 230 MHz to 1 Hz: 37 db Electrostatic discharges IEC Contact: 6 kv Air: 8 kv Electromagnetic fields IEC to 80 MHz 10 V, 80% AM IEC MHz to 1 Hz 10 V/m, 80% AM and PM/900 MHz CE conformity LV Directive 2006/95/EC EN EMC Directive 2004/108/EC IEC IEC Degrees of protection acc. to IEC Front IP 50 Rear IP 00 Dimensions Width x height x depth 482 x 399 x 297 Weight Depending on type 15 to 16 kg Fast transients/bursts IEC ±1 kv/ ±2 kv Surge voltage IEC ±0.5 kv / ±1.0 kv/±2.0 kv/ ±4.0 kv Voltage dips IEC AC: 30%: 10 ms 60%: 100 ms > 95%: 5 s 1 MHz burst disturbance IEC Common mode Differential mode 2.5 kv 1 kv 6 SYNCHROTACT CSS ABB

7 Schematic diagram SINALISATION remote / local LOCAL CONOL Start Stop Release DB Release CB CL CLOSE U+/- f+/- SELECTOR LOCAL / REMOTE local remote Start / Stop / SYNCHRONISIN INSUMENTS U1 /U2 f 1 / f 2 SYN 5202/ SYN 5201 ERROR ERROR READY READY REMOTE CONOL OPERATIN AUTO Start Stop SELECTOR AUTO / MAN / TEST Start/Stop U+/-; f+/- Start / Stop SYN 5500 / / Feedback CLOSED AUTO MAN TEST SYN 5100 ~ U+/-; f+/- CHK Feedback CLOSED U+/-; f+/- Release DB Start / Stop / ~ U+/-; f+/- Single line schematic diagram of a dual channel for two generator circuit breakers. SYNCHROTACT CSS ABB 7

8 Contact us ABB Switzerland Ltd Static Excitation Systems, Voltage Regulators and Synchronizing Equipment CH-5300 Turgi / Switzerland Phone: +41 (0) Fax: +41 (0) pes@ch.abb.com Copyright 2014 ABB. All rights reserved. Specifications subject to change without notice. 3BHT R0001 Rev. C Printed in Switzerland, 2014