Portable microcomputer charging protection device and method

A charging protection and portable technology, which is applied in the direction of circuit devices, electrical components, information technology support systems, etc., can solve the problems of unremovable faults, inconvenient portability for testing, inconvenient setting, etc., and achieve a large range of action time settings, Conducive to the effect of safe and stable operation and easy to carry for testing

CN102891532AInactive Publication Date: 2013-01-23SHENYANG INST OF ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2013-01-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a portable microcomputer charging protection device and a portable microcomputer charging protection method, and belongs to the field of electrical engineering and the automation of the electrical engineering. The device comprises a protective chassis, a direct-current power supply wiring terminal, a three-phase current input wiring terminal, a tripping switch piece, a direct-current switch, a comprehensive digital relay, a tripping output wiring terminal and an installation panel. The invention has the advantages that the device is small in size, light in weight, easy to carry and low in power; remote communication can be realized; the protective fault removing time of the device is short; the operating current and the operating time are wide in setting range and are easy to set; and the operating mode can be set by four groups of tripping switch pieces and also can be set by the comprehensive digital relay.
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Description

technical field

[0001] The invention belongs to the field of electrical engineering and automation thereof, and in particular relates to a portable microcomputer charging protection device and method. Background technique

[0002] When carrying out charging tests on newly put into operation transmission lines and new equipment, a device called charging protection is put into operation. When a short-circuit fault occurs in the new input equipment due to insulation breakdown or insufficient electrical safety distance of the transmission line, the charging protection device will act to quickly cut off the faulty line or equipment. After the charging test is completed, the charging protection device will stop operating. The device can avoid the failure of the faulty line or equipment to be cut off in time, resulting in the power failure of the associated transmission line in the power system, and the disconnection of the associated power plant and the power system, which cannot ...

Examples

Embodiment Construction

[0039] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0040] Such as figure 1 As shown in (a) and (b), a portable microcomputer charging protection device, the device includes a protection case 1, a DC power supply terminal 2, a three-phase current input terminal 3, a trip switch 4, a DC switch 5, a comprehensive Digital relay 6, tripping output terminal 7 and installation panel 8; in the embodiment of the present invention, two DC power supply terminal 2 and six three-phase current input terminal 3 described above are set on the left side of installation panel 8; The eight tripping output terminals 7; the integrated digital relay 6 is arranged in the middle, and the DC switch 5 is arranged below the integrated digital relay; two trip switching pieces 4 are respectively arranged on both sides of the DC switch 5.

[0041] The connection between the installation panel 8 and the protection case 1 is realized ...