Dual Single-Pole High-Speed Power Outputs Hso1, Hso2 And Hso3 - ABB Relion SMU615 Technical Manual

Section 3
Basic functions
3.9.1.3
58
PO3
TCS1
PO4
TCS2
GUID-5A0502F7-BDC4-424A-BF19-898025FCCBD7 V1 EN
Figure 23: Double-pole power outputs PO3 and PO4 with trip circuit supervision
Power outputs PO3 and PO4 are included in the power supply module located in slot
X100 of the merging unit.

Dual single-pole high-speed power outputs HSO1, HSO2 and HSO3

HSO1, HSO2 and HSO3 are dual parallel connected, single-pole, normally open/form
A high-speed power outputs. The high-speed power output is a hybrid discrete and
electromechanical output that is rated as a power output.
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 high-speed
outputs, the total time from the application to the relay output contact activation is 5...6
ms shorter than when using output contacts with conventional mechanical output
relays. The high-speed power outputs have a continuous rating of 6 A.
X100
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Technical Manual
1MRS758407 B
SMU615