MC91 HESG440588R4 HESG112714/B communication module

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The external input signals connected to the protection energise the auxiliary relays K1...K16 in the 216GE61 I/P relay unit. The potentially-free contacts of K1...K16 transmit the external signals to the 216DB61 unit and thence to the B448C bus. By appropriate configuration of the software in the 216VC62a processing unit, external signals can be assigned to the various protection functions, e.g. for logical combination (interlocking and blocking) with trip signals or for exciting the tripping channels 1...8. Tripping circuits 1...8 can be directly energised by all or just some of the I/P channels 1...10 (K1...K10) of 216GE61 via the diode matrix (tripping logic) of 216GA62 (see Section 2.6.). Provision is also made for some of the channels 9...16 (K9...K16) of 216GE61 to be used for supervising the external tripping circuits 1...8 instead of for the connection of external inputs. This is an option, which must be specified in the order to enable the corresponding wiring to be included when engineering the protection. In order to supply the electronic units with power the protection must be connected to an external auxiliary d.c. supply (station battery). The auxiliary d.c. supply unit 216NG61, 216NG62 or 216NG63 (DC/DC converters) steps the station battery voltage down to 24 V and provides electrical insulation between input and output voltages. The 24 V supply is distributed to the units inserted in the protection equipment rack via the B448C parallel bus. The 216NG61, 216NG62 or 216NG63 power supply unit also supplies the electronic circuits on the I/O units. A 216MB66 equipment rack can be equipped with just one or with two redundant 216NG61, 216NG62 or 216NG63 auxiliary d.c. supply RE. 216 1MDU02005-EN / 2 / Rev. G ABB Switzerland Ltd 2-7 units. Redundant units can be connected to the same or to two different station batteries. All software configuration, i.e. selection and setting of the protection functions and the assignment of signals to the inputs and outputs, is performed via the RS-423 serial interface on the 216VC62a processing unit. The corresponding connector is the 25 pin socket X2 on the front of the unit, to which a personal computer is connected.


Contact information: 15359213550
Contact person: He Gong
Email: geabbdcs@gmail.com 386353502@qq.com
Official website: https://www.gyamazon.com , http://www.geabb.com
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The digitised measured variables derived from the primary system quantities are continuously compared by the processing unit 216VC62a with the pick-up settings of the protection functions. If a protection function picks up, the corresponding signal or tripping command is transmitted via the B448C bus to the 216AB61 O/P unit resp. to the 216DB61 I/O unit. The allocation of the signals and tripping commands at the O/P’s of the protection functions to the various channels of the 216AB61 output unit or of the 216DB61 I/P signal and tripping unit is also determined by the software installed in the 216VC62a processor unit. The output signals from the 216AB61 unit (signalling channels) and 216DB61 unit (trip channels) control the auxiliary relays K1...K16 of the 216GA61 O/P relay unit or 216GA62 tripping relay unit. The auxiliary relays' contacts are potentially-free and wired to terminals for connection to external signalling and tripping circuits.
The external input signals connected to the protection energise the auxiliary relays K1...K16 in the 216GE61 I/P relay unit. The potentially-free contacts of K1...K16 transmit the external signals to the 216DB61 unit and thence to the B448C bus. By appropriate configuration of the software in the 216VC62a processing unit, external signals can be assigned to the various protection functions, e.g. for logical combination (interlocking and blocking) with trip signals or for exciting the tripping channels 1...8. Tripping circuits 1...8 can be directly energised by all or just some of the I/P channels 1...10 (K1...K10) of 216GE61 via the diode matrix (tripping logic) of 216GA62 (see Section 2.6.). Provision is also made for some of the channels 9...16 (K9...K16) of 216GE61 to be used for supervising the external tripping circuits 1...8 instead of for the connection of external inputs. This is an option, which must be specified in the order to enable the corresponding wiring to be included when engineering the protection.