PM864AK01-eA 3BSE018161R2 ABB Processor Unit Imported (original)

PM864AK01-eA 3BSE018161R2 ABB Processor unit imported (original)

PM864AK01-eA 3BSE018161R2 ABB Processor unit imported (original)

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To ensure the protection of a user supplied with a network having the following

characteristics:

Rated voltage Ur = 1000 Vdc

Short-circuit current Ik = 18 kA

Load current Ib = 520 A

Network with both polarities insulated from earth.

From the table of available settings, the circuit-breaker to be used is:

T5V 630 In=630 four-pole Icu@1000 Vdc = 40 kA

Thermal trip threshold adjustable from (0.7-1) x In therefore from 441 A to 630

A to be set at 0.85.

Magnetic trip threshold adjustable from (5-10) x In which with correction factor

km = 0.9 gives the following adjustment range: 2835 A to 5670 A. The magnetic

threshold will be adjusted according to any conductors to be protected.

The connection of the poles must be as described in diagrams A or B.

A device which signals any first earth fault must be present.

With the same system data, if the network is carried out with a polarity connected

to earth, the circuit-breaker must be connected as described in diagram C.