Activation circuit and backup power supply of power distribution terminal backup power supply
A technology for activating circuits and backup power supplies, applied in circuit devices, emergency power supply arrangements, electrical components, etc., can solve the problems of large contact point current, difficult to meet the design requirements of distribution automation terminals, safety hazards, etc., and achieve safe and reliable activation. Effect
Active Publication Date: 2021-12-10
上海思源弘瑞自动化有限公司
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- Application Information
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Problems solved by technology
The current manual activation circuit adopts the method of directly connecting the backup power supply through the button. During the activation process, the contact point current is relatively large, causing potential safety hazards, and it is difficult to meet the safe and reliable design requirements of power distribution automation terminals.
Method used
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[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.
[0020] figure 1 It is a schematic structural diagram of an activation circuit of a power distribution terminal backup power supply provided by an embodiment of the present invention, as shown in figure 1 As shown, the activation circuit includes a first activation terminal a, a second activation terminal b, a soft control electronic switch 10 and a trigger circuit 20; the first terminal of the soft control electronic switch 10 is electrically connected to the first activation terminal a, and the soft control elect...
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Embodiments of the present invention provide an activation circuit and a backup power supply for a power distribution terminal backup power supply. The activation circuit includes a first activation terminal, a second activation terminal, a soft-controlled electronic switch and a trigger circuit; the first terminal of the soft-controlled electronic switch is electrically connected to the first activation terminal, and the second terminal of the soft-controlled electronic switch is connected to the second activation terminal. The terminal is electrically connected; the trigger circuit includes a first power supply terminal, a second power supply terminal, a control signal output terminal and a manual button, the first power supply terminal of the trigger circuit is electrically connected to the first activation terminal, and the second power supply terminal of the trigger circuit is connected to the second power supply terminal of the trigger circuit. The two activation terminals are electrically connected, and the control signal output terminal of the trigger circuit is electrically connected with the control terminal of the soft-controlled electronic switch; the manual button is connected in series in the trigger circuit; The control signal is output to control the conduction of the soft-controlled electronic switch. Through the technical solution provided by the embodiment of the present invention, the safe and reliable activation of the backup power supply of the power distribution terminal is realized.
Description
technical field [0001] The embodiments of the present invention relate to the technical field of power distribution automation terminals, and in particular to an activation circuit and a backup power supply of a power distribution terminal backup power supply. Background technique [0002] The distribution automation terminal belongs to the secondary equipment of the power system and has been widely used in the field of distribution network. [0003] After the power distribution automation terminal loses power externally, it needs to continue to be powered by the backup power supply to maintain it to complete a series of tasks such as fault detection and fault handling. For distribution automation terminals with backup power supply, manual activation of the circuit is a must. One of the preparations. The current manual activation circuit adopts the method of directly connecting the backup power supply through the button. During the activation process, the contact point curr...
Claims
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IPC IPC(8): G05F1/56H02J9/06
CPCG05F1/561H02J9/06
Inventor 乔建光刘喜前张丙寅许伟泉沙晶
Owner 上海思源弘瑞自动化有限公司