ABB RELION Series, Техническое руководство

Страница: 89 / 804

3.11.1.2 Double-pole power outputs PO3 and PO4 with trip circuit supervision
The power outputs PO3 and PO4 are double-pole normally open/form A power
outputs with trip circuit supervision.
When the two poles of the contacts are connected in series, they have the same
technical specification as PO1 for breaking duty. The trip circuit supervision hardware
and associated functionality which can supervise the breaker coil both during closing
and opening condition are also provided. Contacts PO3 and PO4 are almost always
used for energizing the breaker trip coils.
PO3
PO4
TCS1
TCS2
X100
16
24
21
23
20
22
17
15
19
18
GUID-5A0502F7-BDC4-424A-BF19-898025FCCBD7 V1 EN
Figure 27: 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 protection relay.
3.11.1.3 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.
1MRS758755 A
Section 3
Basic functions
REC615 and RER615 83
Technical Manual