CN201946997U

CN201946997U - Automatic switching device for back-up power supply of electric generating set

Info

Publication number: CN201946997U
Application number: CN201120025256XU
Authority: CN
Inventors: 陈裕原
Original assignee: CORE POWER (FUJIAN) ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: CORE POWER (FUJIAN) ELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2011-01-26
Filing date: 2011-01-26
Publication date: 2011-08-24
Anticipated expiration: 2021-01-26

Abstract

The utility model relates to an automatic switching device for a back-up power supply of an electric generating set, which is characterized by comprising a car paralleling module and a car paralleling management system. The automatic switching device mainly consists of a diesel generator set, a machine set self-starting controller, an oil engine speed regulation board, a synchronization control board GAC6714, a PLC (Programmable Logic Controller), a generator output circuit breaker and a commercial power output circuit breaker. The automatic switching device has a simple structure, can automatically finish works from the machine set starting to the car paralleling and load switching according to a mode chosen by a user, can refuse a dangerous operation according to various external parameters, does not affect the electricity use under the state of power failure even if a sudden power failure happens, can avoid a secondary manual power off after the commercial power restores normal, thereby being an ideal automatic switching device for the back-up power supply of the electric generating set.

Description

Generating set back-up source automatic switching control equipment

Technical field

The utility model belongs to the generating set field, particularly a kind of automatic switching control equipment of generating set back-up source.

Background technology

In the existing society, owing to its characteristic, all do not allow to take place improper outage or power failure for the employed a large amount of electric equipments of many important units.In this case, diesel engine generator is fast with its start-up time, long operational time, and advantage such as bearing power is big, and cost and maintenance cost are lower becomes back-up source at first.Use self-starting unit generally now, can power again second at the civil power 9-13 that cuts off the power supply, switch to power supply again after civil power is normal, here just there is a problem, promptly each the power failure, certain loss is caused in the capital, because the characteristic of diesel engine itself, make it when power supply in support, certain defective is arranged, this is owing to diesel engine itself is not allow long-term the use as engineering goods, each diesel engine producer in one month at least trial run and run once, band carries a 60%-80%, allows the diesel engine water temperature rise to specified water temperature, to reach each assembly in the sufficient lubrication machine, prevent each assembly corrosion.

Therefore under the normal power supply situation, special switch load can not allow certainly for the generating set test run, this just makes a large number of users can only adopt unloaded test run, and long-term unloaded test run, load capacity that not only can not the normal inspection generating set, also can form certain influence to diesel engine, this be since diesel engine under loading condition, piston ring can not fully expand, lubricated, will burn with oily machine, and machine oil can not fully burn, this just causes the overlong time of smoldering, and can form a large amount of carbon deposits at smoke exhaust pipe, cause exhaust not smooth, influence the engine operate as normal.

Summary of the invention

The purpose of this utility model is that providing a kind of can make the generating set back-up source not have the device that automaticallyes switch in the gap after outage.

The utility model solves the problems of the technologies described above by the following technical programs: a kind of generating set back-up source automatic switching control equipment, it is characterized in that: comprise diesel generating set, unit self-starting controller, oil machine speed adjusting plate, the Synchronization Control plate, the PLC Programmable Logic Controller, generator output circuit breaker and civil power output circuit breaker, described unit self-starting controller is connected to diesel generating set, described Synchronization Control plate is connecting oily machine speed adjusting plate, oil machine speed adjusting plate is connected to unit self-starting controller, described PLC Programmable Logic Controller is connecting diesel generating set respectively, unit self-starting controller, Synchronization Control plate, generator output circuit breaker and civil power output circuit breaker.

The advantage of the utility model generating set back-up source automatic switching control equipment: simple in structure, can finish from unit starting to and car work such as switch load automatically according to the pattern of user's selection, and can be according to the various parameters of outside, refuse unsafe operation, under power down mode, can fully electricity consumption not exerted an influence, even paroxysmal power failure, also can avoid after civil power is normal, the artificial secondary that carries out cuts off the power supply, and is a kind of desirable generating set back-up source automatic switching control equipment.

Description of drawings

In conjunction with the embodiments the utility model is described in further detail with reference to the accompanying drawings.

Fig. 1 is the structural representation of the utility model generating set back-up source automatic switching control equipment.

Embodiment

See also Fig. 1, a kind of generating set back-up source automatic switching control equipment, it is characterized in that: comprise also car module and also car management system, mainly by diesel generating set 1, unit self-starting controller 2, oil machine speed adjusting plate 3, Synchronization Control plate GAC6714, PLC Programmable Logic Controller 4, generator output circuit breaker 5, civil power output circuit breaker 6 is formed, described diesel power generation unit 1 is by 2 controls of unit self-starting controller, the speed of service of oil machine speed adjusting plate 3 control units, Synchronization Control plate GAC6714 controls oily machine speed adjusting plate 3, consistent and send and become function signal to give PLC Programmable Logic Controller 4 synchronously to reach oily machine and mains frequency, PLC Programmable Logic Controller 4 is as the work of core devices control unit self-starting controller and the input of Synchronization Control plate GAC6714, and according to the break-make of the signal controlling generator output circuit breaker 5 and the civil power output circuit breaker 6 of these devices.

And the car module functions is control diesel engine and synchronized, and sends reclosing command, the control switch combined floodgate in generating set and synchronized moment.And the car management system then is the startup that mainly needs the management unit, and the input of car module, disengaging time, and switching needs and the switch of car module controls etc.

Operation principle of the present utility model is as follows: civil power just often, civil power switches to the unit power supply if desired, selector switch is selected in the unit band carries the position, by manually sending signal, unit starts automatically-enters and the car state-and car success-disconnection urban electric power switch-unit run with load.

The unit band carries end, after civil power is normal, again selector switch is gone to the civil power band and carries the position, this moment unit reenter automatically and the car state-and car success-urban electric power switch combined floodgate-unit separating brake-enter the cold machine operation-compressor emergency shutdown of unit is standby.

Under such operation; can reach omnidistance switching of unit all need not to have a power failure; if how the unit auto state has a power failure suddenly down; unit can start band automatically and carry; also can enter automatically and the car state after civil power is normal; and go up civil power unit inborn ability gate stop-start later on, so just reduced the outage number of times of load to greatest extent.

Claims

1. generating set back-up source automatic switching control equipment, it is characterized in that: comprise diesel generating set, unit self-starting controller, oil machine speed adjusting plate, the Synchronization Control plate, the PLC Programmable Logic Controller, generator output circuit breaker and civil power output circuit breaker, described unit self-starting controller is connected to diesel generating set, and described Synchronization Control plate is connecting oily machine speed adjusting plate, and oily machine speed adjusting plate is connected to unit self-starting controller, described PLC Programmable Logic Controller is connecting diesel generating set respectively, unit self-starting controller, Synchronization Control plate, generator output circuit breaker and civil power output circuit breaker.