Activation circuit of power distribution terminal backup power supply and backup power supply
A technology for activating circuits and back-up power supplies, which is applied in circuit devices, emergency power supply arrangements, electrical components, etc., and can solve problems such as potential safety hazards, large contact currents, and difficulties in meeting the design requirements of distribution automation terminals.
Active Publication Date: 2020-03-24
上海思源弘瑞自动化有限公司
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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.
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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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The embodiment of the invention provides an activation circuit of a power distribution terminal backup power supply and a backup power supply. The activation circuit comprises a first activation end,a second activation end, a soft control electronic switch and a trigger loop, the first end of the soft control electronic switch is electrically connected with the first activation end, and the second end of the soft control electronic switch is electrically connected with the second activation end; the trigger loop comprises a first power supply end, a second power supply end, a control signal output end and a manual key, wherein the first power supply end of the trigger loop is electrically connected with the first activation end, the second power supply end of the trigger loop is electrically connected with the second activation end, and the control signal output end of the trigger loop is electrically connected with the control end of the soft control electronic switch; the manual keyis connected in series in the trigger loop; and the trigger loop is used for outputting a control signal at the control signal output end of the trigger loop after the manual key is short-circuited so as to control the soft control electronic switch to be switched on. Through the technical scheme provided by the embodiment of the invention, safe and reliable activation of the backup power supplyof 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