A kind of electric safety leakage protection device
A protective device and electric safety technology, applied in substation/switch layout details, electrical components, etc., can solve problems such as arc discharge and maintenance workers' risks, and achieve the effect of blocking arc discharge
Inactive Publication Date: 2020-08-25
STATE GRID JIANGXI ELECTRIC POWER CO +1
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AI Technical Summary
Problems solved by technology
[0002] Leakage caused by short-circuit of electrical equipment is a common fault in power equipment failures. Many of the leakages are caused by electrical component failures at the distribution box, and the leakage caused by electrical component failures requires workers to open the electrical box to check the fault. Power distribution The most common control of the distribution box is the motor, which is a large inductive load. When the distribution box controls a large inductive load or a capacitive load, a high-voltage reverse electromotive force may appear, and arc discharge may occur. to greater risk
Method used
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Embodiment
[0020] Embodiment: An electric power safety leakage protection device includes a distribution box, a protective door and an alarm device. The distribution box includes a box body 1 and a box door 2. The box body 1 is a square hollow sheet metal shell. There is a door opening 3 in front of the box body 1, and the box door 2 is hinged to one side of the door opening 3 of the box body 1. The outer side when the door 2 is closed is provided with a handle,
[0021] The protective door includes a fixed plate 4, a gravity plate 5, a driving plate 6, a connecting rod 7 and a linkage rod 8, the fixed plate 4 is fixed inside the box body 1 near the door opening 3, and the connecting rod 7 includes a first connection Rod 10, the second connecting rod 11, the third connecting rod 12 and the fourth connecting rod 13, the top end of the fixed plate 4 is rotationally connected with one end of the first connecting rod 10, and the bottom end of the fixed plate 4 is connected with the second co...
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The invention discloses an electric safety leakage protection device, mainly relating to the field of power distribution equipment. The electric safety leakage protection device comprises a distribution box and a protection door, wherein the distribution box comprises a box body and a box door, the protection door comprises a fixed plate, a gravity plate, a drive plate and a connection rod, the top end of the fixed plate is connected with one end of the connection rod in a rotating manner, the bottom end of the fixed plate is connected with one end of the connection rod in a rotating manner, the other end of the connection rod is connected with the top end of the gravity plate in a rotating manner, the other end of the connection rod is connected with the bottom end of the gravity plate ina rotating manner, the top end of the gravity plate is connected with the connection rod in a rotating manner, the bottom end of the gravity plate is connected with the connection rod in a rotating manner, the other end of the connection rod is connected with the top end of the drive plate in a rotating manner, the other end of the connection rod is connected with the bottom end of the drive plate in a rotating manner, the top end of the gravity plate is provided with an attraction plate, the top inside the box body is provided with an electromagnet for attracting the gravity plate. The electric safety leakage protection device has the beneficial effects that an isolation device can be formed in a gateway of the distribution box when in electric leakage, so as to prevent electric components from discharging to maintainers.
Description
technical field [0001] The invention relates to the field of power distribution equipment, in particular to a power safety leakage protection device. Background technique [0002] Leakage caused by short-circuit of electrical equipment is a common fault in power equipment failures. Many of the leakages are caused by electrical component failures at the distribution box, and the leakage caused by electrical component failures requires workers to open the electrical box to check the fault. Power distribution The most common control of the distribution box is the motor, which is a large inductive load. When the distribution box controls a large inductive load or a capacitive load, a high-voltage reverse electromotive force may appear, and arc discharge may occur. to greater risk. Contents of the invention [0003] The object of the present invention is to provide an electric leakage protection device for electric safety, which can form an isolating device at the door opening...
Claims
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IPC IPC(8): H02B1/46
Inventor 左军余炜任虹徐渊林志刚宋志成
Owner STATE GRID JIANGXI ELECTRIC POWER CO