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Choke REACTORS are required to limit the transient currents produced during the con-nection of capacitors.
The connection of capacitor banks has very high associated transient currents and volt-ages.
The IEC 60871-1 Standard defines the maxi-mum value that can be supported by a ca-pacitor bank as the peak connection value. This value is 100 times its nominal current.
When this value is exceeded, RMV choke REACTORS must be installed. These REAC-TORS are in charge of limiting the transient current to values that can be supported by the capacitors. The inductance value is varia-ble, depending on the installation’s conditions and, basically, on the following parameters:
Short-circuit power of the installation
Existence of more capacitor banks
Interrupting power of automatic switches.
The peak current value of the residual connection must also be lower than the interrupting power of the switch unit after the reactor has been installed.