Ct Shorting Block Wiring Diagram
4 pole block part.
Ct shorting block wiring diagram. Ct shorting block provides current transformers potenetial transformers and shorting blocks to industry and utilities companies. This is usually not a concern if there is no line voltage connected to the corresponding voltage input terminal. An open ct secondary with primary current applied produces a hazardous voltage which. Four or six pole shorting blocks can be used in applications with up to three current transformers as shown in the diagram below which allows each current transformer lead to have an individual contact point.
Ct shorting blocks a critical part of current transformer protection. Current transformer shorting blocks protect not only equipment but personnel. 4 pole and 6 pole ct shorting blocks features include. Ei 30ct04dr 6 pole block part.
Ct shorting blocks are wired such that the negative leads of the current transformers are connected to the same node and tied to ground. Unused ct inputs could possibly pickup electrical noise so it is a good practice to short out unused ct input terminals by connecting a wire jumper about 1 inch long between the white and black ct terminals. Ei 30ct06dr these shorting blocks are designed to be a superior. Wiring between the cts and the power monitor should include a shorting terminal block in the ct secondary circuit.