Ashida ADR241B, Instruction Manual

Page: 98 / 272

ADR241B
Doc ID : ADR241B-DO_IM_01
Ref ID : ADR241B/IM/PLF
Rev No. : 06
Page No. : 98 of 272
Fig 9: In this case Ground Earth fault can be use as Sensitive earth fault for cable using
CBCT, while Residual Erath fault, 3Io can be use as earth fault
Figure 9: Logic Diagram for 3OC + 1EF Prot IE Element Connection
Fig 10: The show at typical scheme for Dy transformer, in this case Ground Earth fault can
be use as to detect earth fault at star winding while at delta side convention 3 OC + 1EF
connection using Residual Erath fault, 3Io
Figure 10: Logic Diagram for Dy Transformer