Note: the measuring instrument security factor for each er than an special terminal "a" ends and the second strain than the short end terminal, otherwise will cause factor is not eligible.
NOTE: When measuring instrument security factor for each current ratio is set special terminal "A" side and the secondary strain than the end of the short circuit terminals. Otherwise, the meter factor failed.
Note: measuring instrument security factor of each current ratio shall be special terminal "A" end and two times the corresponding ratio of end terminal short circuit, otherwise it will lead to unqualified instrument coefficient.