Advice

Single or dual-channel?

Not every synchronizing system needs to be structured

according to the above pattern. The SYNCHROTACT® 5

single-channel synchronizing devices offer a high degree of

security and are often used in practice. However, security

can be significantly increased by means of dual-channel

systems. It is unlikely that the two channels – of which the

hardware and software are structured differently – will have

the same malfunction simultaneously. The extra cost of a

dual channel system can prove beneficial compared to the

damage arising from incorrect paralleling.

Second, redundant synchronizing system?

Often, two redundant synchronizing systems are installed

in a single plant so that, in the event of one system failing,

the other can be used, thereby increasing availability. The

second system is often designed for manual synchronizing

with or without synchrocheck.

In addition, with SYNCHROTACT® 5. ABB offers two automatic

dual-channel systems in a single casing, thus avoiding

manual synchronizing.