Standby battery inverter having power outage prompt in island protection
A technology of power failure prompt and backup battery, applied in the field of transformers, can solve the problems of inverter shutdown errors, endanger the personal safety of maintenance personnel, and accidental damage to functions, and achieve the effect of ensuring personal safety.
Active Publication Date: 2019-06-28
浙江恒一新能源有限公司
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Problems solved by technology
[0003] Among them, the backup battery inverter needs to cut off the grid power supply during maintenance, but because the backup battery inverter is a special inverter, it can provide AC power to the specified load. If the power generated by the battery inverter matches the local load on the low-voltage side of the grid, it is easy to maintain a self-sufficient power generation state, resulting in an "island" phenomenon. Therefore, it is necessary to add an island protection function, but photovoltaic systems are mostly in outdoor environments Due to many uncertain factors outdoors, this function is easy to be directly or indirectly damaged by accident. In the case that the maintenance personnel cannot intuitively know, it will cause the inverter to shut down incorrectly. At this time, the inverter to be repaired still exists Electric current will endanger the personal safety of maintenance personnel
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[0026] like Figure 1-Figure 5 As shown, the present invention provides a backup battery inverter with a power failure prompt in island protection. Its structure includes an input interface 1, a terminal 2, and a body 3. The input interface 1 and the terminal 2 are installed on the body 3. On the same side, the interior of the body 3 includes a thermal reminder 31, a controller 32, an inverter bridge 33, and a radiator 34. The thermal reminder 31 is installed on the inner wall of the body 3 and cooperates with the radiator 34 , the signal end of the controller 32 is connected to the input interface 1, wherein the controller 32 is electrically connected to the inverter bridge 33 and the radiator 34, and the radiator 34 is provided with a driving terminal 341, and the thermal prompt The piece 31 is provided with a thermal body 311 , an acoustic membrane 312 , and a sounding body 313 . The thermal body 311 is a circular structure, and a sounding body 313 is arranged on its periph...
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The invention discloses a standby battery inverter having a power outage prompt in island protection. The standby battery inverter comprises an input interface, a connection terminal and a body, wherein the input interface and the connection terminal are mounted on the same side of the body. In the standby battery inverter, a sickle-shaped rotor plate is fixed by the adsorption force of a positiveelectrode magnet and a negative electrode magnet. When the current inside the body is reduced to zero (that is, the body is in a stop state), a heat sink does not operate. However, because the heat in internal mechanical parts is still present when the internal mechanical parts do not operate and the heat cannot be sufficiently dissipated if the heat sink does not operate, the body has a high internal temperature such that the positive electrode magnet and the negative electrode magnet are demagnetized, and the sickle-shaped rotor plate whirls down counterclockwise along a hot body to come into contact with each solid steel block to make a squeaking sound in order to remind a maintenance worker that the body is in the stop state and there is no current inside, which can ensure the personal safety of the maintenance worker.
Description
technical field [0001] The invention relates to the technical field of transformers, in particular to a backup battery inverter with a power failure prompt in island protection. Background technique [0002] Since the photovoltaic inverter is the most important part of the photovoltaic system, under the long-term wind and sun of the photovoltaic system, maintenance personnel are required to overhaul the photovoltaic inverter from time to time, and the photovoltaic inverter is divided into independent inverters inverters, grid-connected inverters and battery backup inverters; [0003] Among them, the backup battery inverter needs to cut off the grid power supply during maintenance, but because the backup battery inverter is a special inverter, it can provide AC power to the specified load. If the power generated by the battery inverter matches the local load on the low-voltage side of the grid, it is easy to maintain a self-sufficient power generation state, resulting in an ...
Claims
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IPC IPC(8): H02M7/00G08B3/02H05K7/20
Inventor刘景娟刘福来江灿阳谢晓燕
Owner浙江恒一新能源有限公司