Smart phase-change switch
A commutation switch, intelligent technology, applied in the direction of electric switch, power device inside switch, protection switch operation/release mechanism, etc. Low-voltage power supply network economics and other issues, to achieve the effect of improving economy and safety, fast switching speed and high safety
Active Publication Date: 2017-02-15
菏泽峥艳电力科技有限公司
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Problems solved by technology
[0004] Three-phase balance is the basis for the safe operation of low-voltage power supply network. Due to the uncertainty of the setting and use of single-phase electrical appliances, the phenomenon of three-phase unbalance over-value in low-voltage power supply network occurs from time to time in actual operation, which seriously affects the low-voltage power supply network. The economy of operation will adversely affect the safe operation of power supply equipment, making the leakage protector unable to operate normally and causing personal harm
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[0036] Accompanying drawing is the specific embodiment of the present invention. Such as Figure 1 to Figure 14 As shown, this kind of intelligent reversing switch includes a base 1, a casing 2 and a PLC control system. The surroundings of the base 1 are folded upwards, and one end of the base 1 is provided with four static contacts 3, and the middle part of the base 1 is provided with a beam plate. 6. The beam plate 6 is perpendicular to the base 1 and parallel to the connection lines of the four static contacts 3. There are four guide rods pierced on the beam plate 6. These four guide rods can be made in the holes on the beam plate 6. Axial movement, three of which are A, B, C three-phase phase guide rods 4, and the other is a zero line guide rod 5, each guide rod is equipped with a push-pull electromagnet 7, the push-pull electromagnet 7 includes an armature 8, The armature 8 is wound with an electromagnetic coil 9, and the armature 8 can move axially in the electromagneti...
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The invention relates to the field of low voltage power supply facilities and particularly relates to a smart phase-change switch. The smart phase-change switch comprises a pedestal and four guide rods. Three of the four guide rods are phase guide rods and the other is a zero line guide rod. The guide rods are provided with moving contacts and can do axis motions. The pedestal has fixed contacts. The pedestal under the guide rods is provided with a latching system and an error proofing system, the latching system comprises a phase line latching slide plate and a zero line latching slide plate, one sides, facing a zero line, of three vertical parts of the phase line latching slide plate are provided with a phase line guiding inclined plane and a phase line latching bayonet, and the zero line latching slide plate is provided with a zero line guiding inclined plane and a zero line latching bayonet. The error proofing system comprises two error proofing slide plates each having an error proofing inclined plane. The invention achieves automatic switching of a single phase load working phase in a condition that the three-phase unbalance of a low voltage power supply network is overbalance, enables the whole low voltage power supply network to always operate in a three-phase balance allowance range, and is featured by fast switching speed, accurate switching and high safety, so that the economic property of the low voltage power supply network is improved.
Description
[0001] (1) Technical field [0002] The invention relates to the field of low-voltage power supply facilities, in particular to an intelligent phase change switch. [0003] (2) Background technology [0004] Three-phase balance is the basis for the safe operation of low-voltage power supply network. Due to the uncertainty of the setting and use of single-phase electrical appliances, the phenomenon of three-phase unbalance over-value in low-voltage power supply network occurs from time to time in actual operation, which seriously affects the low-voltage power supply network. The economy of operation will adversely affect the safe operation of power supply and consumption equipment, making the leakage protector unable to operate normally and causing personal harm. [0005] (3) Contents of the invention [0006] In order to make up for the defects of the prior art, the invention provides an intelligent commutation switch with less investment and miniaturization. [0007] The pre...
Claims
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Login to View More IPC IPC(8): H01H71/10H01H3/28H01H9/20
CPCH01H3/28H01H9/20H01H71/10
Inventor 秦传勇秦峥朱天桁
Owner 菏泽峥艳电力科技有限公司