10kv intelligent solar container circuit breaker fault handling

How many virtual circuits does a 110 kV intelligent substation have?

This article takes the 110 kV intelligent substation as an example, as shown in Fig. 3. The intelligent substation has a total of 11 virtual circuits, as shown in Table 3.

Is there a physical link of a secondary circuit in intelligent substations?

Reference introduces a modeling method for the physical link of the secondary circuit in intelligent substations, but its computational complexity increases with the increase of equipment types and connection relationships, and its convergence deteriorates.

What is an example of a virtual circuit in intelligent substation?

For example, the L 6 virtual circuit is a virtual circuit for direct sampling of direct tripping signals in line protection. The merging unit will transmit the sampled electrical analog quantity to the line protection through the A-2 port via optical fiber G9. Fig. 3. Physical topology of secondary circuit in intelligent substation. Table 3.

How to determine if a virtual link has a LK fault?

If there is an alarm message on the virtual link, it can be determined that the Lk fault on the virtual link is caused by the fault point between qup ∩ qty. (4) The above steps need to be repeated, gradually narrowing the fault range until the fault range is minimized, and a unique set of faulty physical ports can be identified. 5.2.

What is the proof value for a fiber optic break fault?

The proof value for the type of fiber optic break fault in the link is 3, and the proof values for garbled code and network blocking are 0 and 2, respectively. According to the rules of proof in Section 5.3, it can be determined that there was a fiber optic break in this link.