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An electrical equipment operating program lock and its operating method
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A technology of electrical equipment and operating procedures, which is applied in the field of program locks and can solve problems such as uncontrollability
Active Publication Date: 2022-01-04
SHENZHEN POWER SUPPLY BUREAU
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[0004] Traditional program locks are mostly mechanical program locks, which are locked or unlocked at the mechanical level of the operating mechanism according to the operating sequence of the equipment, and cannot be controlled at the electrical level
Method used
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Embodiment 1
[0059] refer to Figure 1-2 , Embodiment 1 of the present invention proposes an operation program lock for electrical equipment, including a controller, a key, a first base, a second base, a third base, and a fourth base; the key is a state-changeable structure, and keys in different states are respectively used to drive at least a part of the first base, the second base, the third base and the fourth base to move, so that the structural states of the first base, the second base, the third base and the fourth base are in two Switching between states, the controller is used to generate corresponding control signals according to the structural states of the first base, the second base, the third base and the fourth base to control the switch of the electrical equipment, the lower knife switch, and the upper knife The gate and the ground knife on the line side are opened and closed.
[0060] Specifically, when the line is in normal operation, the switch, the lower switch, and th...
Embodiment 2
[0092] As shown in the figure, Embodiment 2 of the present invention proposes an operation method of the electrical equipment operation program lock as described in Embodiment 1, including:
[0093] When the online routing operation is transferred to inspection and maintenance, perform the following steps in sequence:
[0094] Step S101, inserting the key in the first state into the first base to make the two cooperate, rotating the key to drive the first base to move, making it switch from one structural state to another structural state, and, with the The rotation of the key, the key is switched from the first state to the second state; the controller generates a first control signal according to the structural state of the first base to control the switch of the electrical equipment to open;
[0095] Step S102, inserting the key in the second state into the second base to make the two cooperate, rotating the key to drive the second base to move, making it switch from one st...
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Abstract
The present invention provides an electrical equipment operation program lock and its operation method. The electrical equipment operation program lock includes a controller, a key, a first base, a second base, a third base and a fourth base; variable structure, the keys in different states are respectively used to drive at least a part of the first base, the second base, the third base and the fourth base to move, so that the first base, the second base, the third base and the fourth base The structural state of the base is switched between two states, and the controller is used to generate corresponding control signals according to the structural states of the first base, the second base, the third base and the fourth base to control the switch of the electrical equipment , Lower knife switch, upper knife switch and ground knife on the line side to open and close. By implementing the present invention, the program lock operation control can be performed on the electrical level.
Description
technical field [0001] The technical field of the program lock of the present invention particularly relates to an electrical equipment operation program lock and an operation method thereof. Background technique [0002] The five electrical defenses include: 1. Preventing the disconnection and closing of the isolating switch with load; 2. Preventing the wrong opening and closing of the circuit breaker, load switch, and contactor; 3. Preventing the closing of the circuit breaker and the load switch when the grounding switch is in the closed position; 4. Prevent mistakenly closing the grounding switch when electrified; 5. Prevent mistakenly entering the electrified compartment. [0003] There are four common anti-misoperation locking methods: mechanical locking, program locking, electrical interlocking and electromagnetic locking. The key for the program lock is passed or replaced with the operation program to meet the requirements of successive unlocking operations. During...
Claims
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Application Information
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