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a circuit breaker

A technology of circuit breakers and molded case circuit breakers, which is applied to the operation/release mechanism of protection switches, etc., can solve the problems of complex control system, increased cost, and large volume, and achieves the effects of safe and reliable volume, compact structure and small volume.

Active Publication Date: 2017-10-13
CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the conventional circuit breaker electric operating mechanism is used in this kind of system to realize automatic power supply restoration, it will need to install another control module, which is bulky, and makes the control system complicated, costly, and uneconomical

Method used

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Embodiment Construction

[0025] Such as Figure 1-Figure 2 As shown, the present invention proposes a circuit breaker, including a case 3 , a molded case circuit breaker 1 and an electric operating device 2 located under the case 3 . An undervoltage release device ( Figure 4 shown in , the setting method belongs to the known technology, and will not confuse the understanding of those skilled in the art, so the applicant will not repeat it), and a transparent (visible) partition is embedded on the right side of the casing 3 plate 31, which is convenient for observing the position and state of the circuit breaker handle 11 of the molded case circuit breaker 1; on the left side of the case 3, there is an accommodation cavity 32 for placing the external key handle 100; on the case 3, there is also a power supply The operation hole 33 for switching the manual operation device 2 between the manual operation mode and the electric operation mode.

[0026] Such as Figure 3-Figure 8 As shown, the electric ...

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Abstract

The invention discloses a circuit breaker. The circuit breaker comprises a housing, and a molded case circuit breaker and a motor-operated device located below the housing; the motor-operated device comprises a shell and an operating mechanism; the shell and the molded case circuit breaker are arranged side by side; the operating mechanism comprises a support, a rotor device, a motor and a transmission mechanism; the support comprises a mounting plate, a bottom plate and a supporting plate; the mounting plate comprises two side walls and one top plate; a transmission mechanism mounting cavity is formed between the side walls, the top plate and a mounting surface; the motor is arranged below the mounting surface and arranged inside the shell; the rotor device is arranged in a rotor device mounting cavity and connected with the motor; and the transmission mechanism is arranged in the transmission mechanism mounting cavity, driven by the rotor device and acts on the molded case circuit breaker. The circuit breaker provided by the invention optimizes the layout of the circuit breaker with the motor-operated device, can be quickly installed and has the advantages of being impact in structure, small in size, and safe and reliable.

Description

technical field [0001] The invention relates to a circuit breaker, in particular to a circuit breaker with an electric operating device. Background technique [0002] With the development of new energy technology, especially photovoltaic power generation technology, new requirements are put forward for the use of circuit breakers. According to the actual use, the voltage on the power distribution side may drop below 70% Ue of the normal voltage. Usually, the low voltage has a great impact on the normal operation of the electrical equipment. In order to protect the electrical equipment from damage, a circuit breaker is required Can automatically cut off the circuit to protect electrical appliances. Based on this purpose, in order to isolate the photovoltaic power supply side from the power input to the power supply side in time, the circuit breaker at the contact point should be able to cut off the power supply from the photovoltaic side in time. When the voltage on the pow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/70
CPCH01H71/70
Inventor 唐维春顾建青奚菊芳
Owner CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)
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