1MRS750915-MUM
REM 54_
41
Machine Terminal
Technical Reference Manual, General
5.1.6. Analog channels
The machine terminal measures the analog signals needed for protection, measuring,
etc. via sensors or galvanically separated matching transformers. The machine
terminals can be provided with the following matching transformers:
• 5 current and 4 voltage transformers:
CT1, CT2, CT3, CT4, CT5, VT1, VT2, VT3, VT4
• 6 current and 3 voltage transformers:
CT1, CT2, CT3, CT4, CT5, CT6, VT1, VT2, VT3
• 7 current and 2 voltage transformers:
CT1, CT2, CT3, CT4, CT5, CT6, CT7, VT1, VT2
• 8 current and 1 voltage transformers:
CT1, CT2, CT3, CT4, CT5, CT6, CT7, CT8, VT1
In addition to conventional matching transformers, current sensors and voltage
dividers developed by ABB can be used in the machine terminals. The machine
terminal has 9 sensor inputs
1
. A current sensor (Rogowski coil) or a voltage divider
can be connected to each sensor input. The machine terminal allows the user to
configure each sensor input for the type of sensor to be used. Furthermore, the
machine terminal is provided with general measurement via sensor inputs. This
allows e.g. temperature monitoring, provided a temperature sensor with a voltage
transducer output is available.
The third letter in the four-letter extension of the order number specifies whether the
machine terminal is to be equipped with conventional matching transformers or with
matching transformers and sensor inputs. (See “Ordering Information” on page 95.).
• REM543C_212AA_A /CA_A /AA_B
• REM543B_213AA_A /CA_A /AA_B
• REM543C_214AA_A /CA_A /AA_B
• REM543B_215AA_A /CA_A /AA_B
• REM543C_216AA_A /CA_A /AA_B
• REM543B_217AA_A /CA_A /AA_B
• REM543C_218AA_A /CA_A /AA_B
• REM543B_219AA_A /CA_A /AA_B
• REM545B_222AA_A /CA_A /AA_B
• REM545B_223AA_A /CA_A /AA_B
• REM545B_224AA_A /CA_A /AA_B
• REM545B_225AA_A /CA_A /AA_B
• REM545B_226AA_A /CA_A /AA_B
• REM545B_227AA_A /CA_A /AA_B
• REM545B_228AA_A /CA_A /AA_B
• REM545B_229AA_A /CA_A /AA_B
1. Machine terminals of releases prior to Release 2.0 have 8 sensor channels.
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