A photovoltaic grid-connected cabinet

A network cabinet and photovoltaic technology, applied in the direction of electrical components, substation/distribution device shell, substation/switchgear cooling/ventilation, etc., can solve the problems of insufficient safety protection, insufficient safety protection, casualties, etc.

Pending Publication Date: 2019-01-04
HUZHOU ELECTRIC POWER COMPLETE EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The safety protection in the photovoltaic grid-connected cabinets of the prior art is not comprehensive enough. If the State Grid encounters emergency situations such as line failures or power outages, the safety protection is not in place, which may cause casualties

Method used

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  • A photovoltaic grid-connected cabinet
  • A photovoltaic grid-connected cabinet
  • A photovoltaic grid-connected cabinet

Examples

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0031] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contribution as required after reading this specification, but as long as they are within the rights of the present invention All claims are protected by patent law.

[0032] Such as figure 1 figure 2 Figure 4 A photovoltaic grid-connected cabinet is shown, which includes a cabinet body 16 and a cabinet door 7. A universal circuit breaker 2, a measuring transformer 3, a molded case circuit breaker 44, and a surge protector 6 are installed inside the cabinet body 16. The circuit breaker 4 is connected to the small air switch 5 through wires, and the surge protector 6 is connected to the copper bar through the small air switch 5. A knife swit...

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Abstract

The invention provides a photovoltaic grid-connected cabinet, belonging to the technical field of photovoltaic power equipment. A photovoltaic grid-connected cabinet includes cabinet body and cabinetdoor, A universal circuit break measuring transformer, moulded case circuit breakers and surge protectors are installed in that inner part of the cabinet,, The moulded case circuit breaker is connected with a small empty opening through a conductor, the surge protector is connected with a copper bar through the small empty opening, a knife switch is also installed inside the cabinet, the knife switch is connected with the copper bar, a metering chamber is arranged inside the cabinet, and a metering transformer is installed inside the metering chamber. In case of emergency such as line failureor power outage, the circuit breaker will automatically cut off the circuit to prevent the photovoltaic power supply from continuing to be transmitted to the national grid, thus playing a role of safety protection.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic power equipment, and in particular relates to a photovoltaic grid-connected cabinet. Background technique [0002] The world's conventional energy supply is increasingly in short supply, and the search for new energy has become a hot issue in the world. Among various forms of new energy, solar power generation has the characteristics of non-pollution, sustainable, large amount, wide distribution, and various application forms, and is favored by countries all over the world. highly valued. The application of the solar photovoltaic market will present a wide-ranging and diversified trend, and photovoltaic products that meet various needs will continue to come out. In addition to large-scale photovoltaic grid-connected photovoltaic power stations, photovoltaic power generation systems combined with buildings, small photovoltaic systems, off-grid Photovoltaic systems will also rise rapidly, and ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H02B1/30H02B1/56H02B1/28
CPCH02B1/28H02B1/30H02B1/565
Inventor倪泉伟
OwnerHUZHOU ELECTRIC POWER COMPLETE EQUIP