ABB RELION Series, Руководство по эксплуатации продукта

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xx1MRK000371-DA_1.vsd
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IEC1MRK000371-DA-1 V1 EN-US
Figure 8. Example of a test switch module
1 Test switch
2 DC switch
3 Spare seat, can be used for Key switch
4 RHGS 6 case
Test switch
M1952-3 v1
The test switch, RTXP 24, is used to make it possible to test
a IED in a failsafe way. Inserting a test-plug handle into the
test switch automatically makes all preparations for test in
the proper sequence. Blocked trip circuits, shortcircuited
CT’s, opened voltage circuits makes the IED terminals
available for secondary injection test.
DC-switch
IP633-1 v1 M1981-3 v1
The DC-switch is optional in the test switch module and are
used to switch the DC-supply of the IED ON/OFF.
M1983-3 v1
The DC-switch is of one seat Combiflex type and needs a
Combiflex terminal base to be mounted.
5. Key switch for settings
M1991-3 v2
The key switch for lock-out of settings via the local human
machine interface is used to prevent unwanted changes of
settings. The switch locks the settings via a binary input.
M1993-3 v1
The key switch is of one seat Combiflex type. To install it, a
case including a Combiflex terminal base is needed. One
possibility is to install the key switch in the same case as
the test switch.
6. Combiflex modules
Auxiliary relays
SEMOD121105-4 v3
Auxiliary relays can be used together with the IED to
provide functionality such as lock-out, lock-out reset or
external contact re-enforcement
When the contact rating of the IED is insufficient, it is
recommended to use RXME 1 as a contact re-enforcement.
The RXME 1 is then activated from an IED contact which is
set up to be activated together with the IED contacts
tripping the breaker. The contact of the RXME 1 is
connected in parallel, to take over the breaker trip coil
current. This gives an efficient solution and means no time
delay at tripping. See figure
9 .
670/650 series and SAM600-IO IEC 1MRK 514 012-BEN K
Hitachi Power Grids 9
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