Figure 8.16 shows a variation in which the line circuit breakers are not used. In this configuration
a line fault will remove the transformer by opening the remote terminals. This is an acceptable
condition only if the load being served can withstand the outage and there is no source on the
low-voltage side. It is also necessary to set the remote relays to ‘see’ into, but not beyond, the
transformer to avoid tripping the high-side breakers for low-side faults.