SD-BD-04-03/Rev.10/27-02-69

AUTOMATIC CLOSED TRANSITION TRANSFER SWITCH

TRANSFER SWITCH (CLOSED TRANSITION)

DESCRIPTION

The CTTS (Closed Transition Transfer Switch) provides make-before-break transfer between two power sources. Voltage and frequency are synchronized before transfer to ensure seamless load transition Suitable for applications requiring uninterrupted power.

APPLICATIONS

Used in power plants and critical facilities requiring uninterrupted transfer
Suitable for planned maintenance or testing without load interruption

SPECIFICATION

CONNECTION DIAGRAM

Closed-transition operation allows temporary parallel connection of both power sources before transfer.
It is possible to switch to uninterruptible during parallel operation of both power sources. The trip structure also enables the neutral position (positive power off). The same operation as the existing CTTS is possible. A->OFF B, B->OFF A and A->OFF->A, B->OFF->B Operation are possible. Both overlapping and non-overlapping operation modes are available.