Bobina (Sonda) Rogowsky FASK 100mm 100mV/kA 3m marca MBS (Alemania)

The Rogowski coil FASK

The MBS Rogowski model FASK are supplied in four different diameters (100, 150, 200 and 300 mm).

An insertion point is provided on the closure; this is for a cable tie to attach the coil to the primary conductor.

Benefits of the Rogowski coil FASK

• The Rogowski coils FASK 100, 150, 200 and 300 are completely shielded, and are therefore extensively protected from interference effects.
• All Rogowski coils generate a relatively large output signal of100 mV/kA. Because of the coil’s good linearity, even relativelysmall primary currents well below 1 kA can be measured accurately.
• The Rogowski FASK coils have a phase error between -0.4 and -0.5 degrees, and so a fixed correction factor can be used in the measurement device.
• The materials permit use in very aggressive ambient temperatures. The coils generate no waste heat.
• The supply cable can be shortened without loss of accuracy.

General attributes

In order to achieve the maximum accuracy possible when measuring using Rogowski coils, the following items must be noted:

•  In order to avoid parasitic effects, the Rogowski coil, including the supply cable, must be completely shielded.
•  The output voltage of Rogowski coils is usually specified in mV/kA. Because voltage signals are generally deemed to be relatively failure-prone, the coil on the output should generateas large a voltage signal as possible because when smaller primary currents flow the output signal can be affected by noise or interference signals, and so the stated accuracy classes can no longer be achieved.
•  The position of the primary conductor often affects the accuracy. When installing, it should be ensured that the coil is fitted so as to achieve the best accuracy.