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SYN5202a-Z,V221 3BHB006715R0221 Synchronizing devices and systems

Synchronizing devices are widely used in power stations orindustrial installations with their own power generating facilitieswhere the generators need to be paralleled with an island lineor a public line, or in power distribution systems.
Power circuit breakers may only be closed if both voltages areapproximately synchronous (coincident). Otherwise, faults inline operation, loading of the generators and, in extreme cases.damage to the generators can result.
SYNCHROTACTo 5 perfoms these functions safely and reliably.whether as a monitoring element for manual paralleling or asan independent fully-automatic synchronizing device.

Single or dual-channel?

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Overview

Essential details：SYN5202a-Z,V221 3BHB006715R0221 Synchronizing devices and systems

Synchronizing devices are widely used in power stations orindustrial installations with their own power generating facilitieswhere the generators need to be paralleled with an island lineor a public line, or in power distribution systems.
Power circuit breakers may only be closed if both voltages areapproximately synchronous (coincident). Otherwise, faults inline operation, loading of the generators and, in extreme cases.damage to the generators can result.
SYNCHROTACTo 5 perfoms these functions safely and reliably.whether as a monitoring element for manual paralleling or asan independent fully-automatic synchronizing device.

Single or dual-channel?
Not every synchronizing system needs to be structuredaccording to the above pattern. The SYNCHROTACT· 5single-channel synchronizing devices offer a high degree ofsecurity and are often used in practice. However, securitycan be significantly increased by means of dual-channelsystems.lt is unlikely that the two channels – of which thehardware and software are structured differently – will havethe same malfunction simultaneously. The extra cost of adual channel system can prove beneficial compared to thedamage arising from incorrect paralleling
Second, redundant synchronizing system?Often, two redundant synchronizing systems are installedin a single plant so that, in the event of one system failing.the other can be used, thereby increasing availability. Thesecond system is often designed for manual synchronizingwith or without synchrocheck.
In addition, with SYNCHROTACT’ 5. ABB offers two automaticdual-channel systems in a single casing, thus avoidingmanual synchronizing.
Advantages of such a solution:
-No engineering and wiring costs for the second system-Further increased security since all four output contactsare normally operated in series
No problems with synchronizing where themanual synchronizing system is seldom used.

SYN5201A-Z V217 3BHB006714R0217

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SYN5202a-Z,V221 3BHB006715R0221 Synchronizing devices and systems

Product Description

Specific settings for synchronizing and paralleling are storedin a parameter set. Devices with seven parameter sets haveseven times the same parameters, with the possibility ofindividual setting. That way, seven paralleling points withindividual settings may be operated. Firstly, the parameterset, or the circuit breaker to be synchronized has to beselected. Then the synchronizing process can be started.
The software-driven link between parameter set andparalleling point guarantees the correct assignment of thesetting values to the related plant components.

The SYN 5202 is a dual-channel system with two differentlystructured independent channels in the same casing. SYN 5302 consists of two SYN 5202 dual-channel devices in one casing. Both systems are normally all wired in series (four channels!). Should one system fail, it is possible to switch over, without danger, to the other dual-channel automatic system.
This allows paralleling to be carried out fully automatically and with maximum security at all times. Additional costs for a redundant synchronizing system are saved.

Ordering information
When ordering, please state the complete type designation of the synchronizing unit.
Recommendation
No individual parts are available for the SYN 5100 unit. It is therefore recommended that an identical, pre-set replacement unit be kept in stock.
In the case of SYN 520x units, it is recommended that an identical, pre-set replacement unit be kept in stock.
In the case of the SYN 5302, the following PCB modules are recommended as spare parts: SYN 5020 system control and SYN 5014 extended I/O card, if the latter is installed.

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