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What is the advantage of having a barriered bypass?
Power Circuit Type Z
This power circuit operates the motor either from the power converter or from full voltage line power (bypass mode). This option consists of one floor
mounted enclosure with two doors, two disconnects, and a barrier separating the power converter from the bypass circuit. Refer to Table 29.
The bypass circuit consists of an across-the-line full-voltage starter, comprising a contactor (NEMA or IEC)and an overload relay. Each section
is supplied by its own circuit breaker disconnect.