Is the AIM Filter difficult to install?
No. Because the AIM Filter is a parallel device it may not even be necessary to have ashutdown.The AIM Filter requires either 3 power cables (3Phase 3Wire) or 4 power cables (3Phase 4Wire) plus 2 CT’s (3Phase 3Wire) or 3 CT’s (3Phase 4Wire). The power cables require to be sized according to the total current injected by the AIM Filter and de-rated by 15% to accommodate the effects of the higher frequencies, i.e. skin effect. The CT’s used (see FAQ18) are not ordinary instrument CT’s as again, they are measuring higher frequencies than the 50Hz Fundamental and can be either ring type or split-core (extra cost). The CT cables require to be run separate from the power cables and preferably ‘twisted pairs’. Local regulations may vary but generally a local ‘isolation device’ will require to be installed between the supply connection point and the AIM Filter if the distance between the connection point and the AIM Filter exceeds 1 meter (for safety reasons).