Alarm system and method
An alarm system and circuit technology, applied in the field of power electronics
Inactive Publication Date: 2011-06-15
HUAINAN MINING IND GRP
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[0003] The embodiment of the present invention provides an alarm system and method to solve the technical defect that the alarm system in the prior art can only alarm the accidents that occur on the load side of the high-voltage power supply line
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[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0017] figure 1 It is a structural schematic diagram of Embodiment 1 of the alarm system of the present invention. Such as figure 1 As shown, the alarm system of this embodiment includes a voltage transformer cabinet 11, a monitoring control device 12 and an alarm circuit 13, wherein the voltage transformer cabinet 11 includes a primary side and...
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The invention provides an alarm system and method, wherein the alarm system comprises a voltage transformer cabinet, a monitoring and controlling device and an alarm loop; the voltage transformer cabinet comprises a primary side and a secondary side, the primary side is connected to an incoming line end of a high-voltage power supply circuit, and the secondary side is connected to a low-voltage power supply circuit; the monitoring and controlling device is connected to the low-voltage power supply circuit near the secondary side and is used for sending a control message when monitoring that the incoming line end of the high-voltage power supply circuit is in power failure or loss of voltage; and the alarm loop is used for receiving the control message and giving an alarm according to the control message. The alarm system and method provided by the embodiment of the invention provide an alarm way when the incoming line end of the high-voltage power supply circuit is in power failure or loss of voltage, overcome the technical defect that the traditional alarm system can only alarm accidents happened at a load side of the high-voltage power supply circuit, and achieve the aim of alarming when the incoming line end of the high-voltage power supply circuit is in power failure or loss of voltage.
Description
technical field [0001] Embodiments of the present invention relate to the field of power electronics, and in particular to an alarm system and method for power failure or loss of voltage at an incoming line terminal of a high-voltage power supply line. Background technique [0002] In the prior art, the accident alarm system of the substation only performs relevant alarm actions when an accident occurs on the load side of the high-voltage power supply line. However, when there is a power failure or loss of voltage at the incoming end of the high-voltage power supply line, the substation cannot receive an alarm, which seriously threatens the safe power supply of production and life. Contents of the invention [0003] The embodiment of the present invention provides an alarm system and method to solve the technical defect in the prior art that the alarm system can only alarm the accidents occurring on the load side of the high-voltage power supply line. [0004] An embodime...
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IPC IPC(8): G08B21/00
Inventor 王勇曹海山王积登陈锡堂路家伟王家明何方明朱国雄任明安王本贵
Owner HUAINAN MINING IND GRP