ABB RELION REX640 Technical Manual page 165

1MRS759142 F
Figure 60: Double-pole power outputs with trip circuit supervision in power supply
module
3.14.1.3 Static power outputs SPO1...SPO8
The outputs are normally used in applications that require fast relay output contact
activation time to achieve fast opening of a breaker, such as, arc-protection or
breaker failure protection, where fast operation is required either to minimize fault
effects to the equipment or to avoid a fault to expand to a larger area. With the
static power outputs, the total time from the application to the relay output contact
activation is 4...6 ms shorter than when using output contacts with conventional
mechanical output relays.
SPO5 and SPO7 are equipped with constant current generator to provide trip circuit
supervision (TCS) current. SPO6 and SPO8 are equipped with TCS input that can be
connected to the TCS function with Application Configuration in PCM600. See Trip
circuit supervision TCSSCBR function for TCS connections.
The static power outputs are included in BIO1002 and BIO1004 modules.
REX640
Technical Manual
Basic functions
165