JPS6251414U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a diagram showing an embodiment of a substation to which the present invention is applied, Fig. 2 is a configuration diagram of a logic circuit that determines control conditions of a transformer bank, and Fig. 3 is a main part of a control device according to the present invention. Block diagram showing one embodiment of
The figure is a flowchart for determining control conditions in a conventional device. 1...Primary A bus line, 2...Primary A bus line, 3...Secondary A bus line, 4...Secondary A bus line, 11, K1...Primary A bus line side disconnector, 12, K2...Primary A bus line side disconnector vessel, 1
3, K3, 16, K6...breaker, 14, K4...2
Secondary A bus side disconnector, 15, K5...Secondary B bus side disconnector, MEM...Memory circuit, LGC...Logic operation circuit, _B1 ...No. 1 LRT bank, BK...No. K LR
T bank.

Claims (1)

[Scope of utility model registration request] The primary A bus line side disconnector and the primary O bus line side disconnector are connected in series between the primary A bus line and the O bus line, and the secondary A bus line is connected in series between the secondary A bus line and the O bus line. The connection point between the secondary A bus side disconnect switch and the secondary A bus line side disconnect switch, the connection point between the primary A bus side disconnect switch and the primary A bus side disconnect switch, and the input side of the transformer bank with on-load voltage regulator. between the primary circuit breaker connected between the connection point of the secondary A bus side disconnecting switch and the secondary A bus side disconnecting switch and the output side of the transformer bank with on-load voltage regulator. In a substation having connected secondary circuit breakers for each transformer bank, it is determined for each transformer bank whether the opening/closing state of each disconnector and circuit breaker is in a predetermined state, and the transformer bank is brought into a predetermined state. If so, it is a transformer bank control device that executes control of the transformer bank, and includes a memory circuit that stores the open/close status of each disconnector and circuit breaker as 1-bit information for each transformer bank. , and a logic operation circuit that sequentially reads out the information in this memory circuit and determines by logic operation whether the opening/closing states of the disconnectors and circuit breakers in each transformer bank are in a predetermined state. Bank control device.