Power processor 3BSE018732R1


External connections:
• Excitation current to the load cells
• 2 or 4 analog inputs for load cell signals
• 4 analog outputs, voltage or current
• 8 digital inputs for control signals
• 8 digital outputs
• +24 V supply for external units, max 0.5 A
• Ethernet connection
• Service and multiple control units
• 2 serial interfaces of type RS-232 for
external displays, control, etc.


Category: SKU: 3BSE018732R1 Tag:
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Power processor 3BSE018732R1

Power processor 3BSE018732R1


The different network configuration classes are:

1. Parallel line with common positive and zero sequence network

2. Parallel circuits with common positive but isolated zero sequence network

3. Parallel circuits with positive and zero sequence sources isolated. One example of class 3 networks could be the mutual coupling between a 400kV line and rail road overhead lines. This type of mutual coupling is not so common although it exists and is not treated any further in this manual.

For each type of network class, there are three different topologies; the parallel line can be in service, out of service, out of service and earthed in both ends. The reach of the distance protection zone 1 will be different depending on the operation condition of the parallel line. This can be handled by the use of different setting groups for handling the cases when the parallel line is in operation and out of service and earthed at both ends.

The distance protection within the IED can compensate for the influence of a zero sequence mutual coupling on the measurement at single phase-to-earth faults in the following ways, by using:

• The possibility of different setting values that influence the earth-return compensation for different distance zones within the same group of setting parameters.

• Different groups of setting parameters for different operating conditions of a protected multi circuit line. Most multi circuit lines have two parallel operating circuits.



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