Low-voltage portable pluggable refined reactive power compensation device and monitoring system

A compensation device and monitoring system technology, applied in reactive power adjustment/elimination/compensation, switching devices, circuit devices, etc., can solve problems such as overcompensation or idle equipment, lack of equipment, and insufficient capacity for increasing single-phase compensation

Pending Publication Date: 2022-03-08
广西电网有限责任公司梧州供电局
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the load composition of different station areas is different, and the load conditions of the same station area are also different in different seasons. If the method of fixed grouping and fixed capacity is used to compensate, there will often be insufficient compensation, over-compensation or idle equipment. The existing ladder Although the design of group compensation can meet most of the on-site needs, it can only compensate the power rate of the distribution transformer above the qualified line. When there is a large increase in single-phase compensation capacity shortage, the existing reactive power compensation device does not have the ability to realize how much reactive power is lacking according to different load conditions in different stations.

Method used

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  • Low-voltage portable pluggable refined reactive power compensation device and monitoring system
  • Low-voltage portable pluggable refined reactive power compensation device and monitoring system

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Experimental program
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Embodiment approach

[0036] The specific implementation method is as follows: an APP is set in the mobile terminal. Once the cabinet door is opened, an alarm prompt will be issued through the APP. When the battery loses voltage on the input side, it is guaranteed to immediately send a reminder to the platform, and timely alarm through the APP, which is helpful to find the theft of the cabinet or the power failure of the branch.

[0037] The compensation module 3 is modified based on the drawer module of the standard 0.4kV drawer-type low-voltage power distribution switchgear. The drawer-type switchgear is made of steel plate to make a closed shell. A functional module that completes a certain type of power supply task. The functional module is separated from the busbar or cable by a grounded metal plate or a functional plate made of plastic to form three areas: busbar, functional module and cable. Between each functional module There are also isolation measures between the drawers. The main fixed ...

specific Embodiment approach

[0039] The specific implementation method is: when the humid air is sucked by the fan, it flows through a specially designed air duct, and first passes through the semiconductor refrigerator to cool down and condense. outside. After fully circulating dehumidification within the set starting value, the air humidity in the cabinet is reduced to below the dew point, and the entire moisture-proof condensation heating process is completed. At the same time, the signal acquisition sensor of the intelligent dehumidification device is external, which can accurately collect the real humidity in the cabinet in real time, so as to ensure that the intelligent dehumidification device will start dehumidification in advance when the condensation condition is about to be reached in the cabinet. When the temperature in the cabinet is low At the set start value, the dehumidifier starts the internal heater circuit (the heater is connected externally, and the power can be connected to 50~300W), u...

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Abstract

The invention discloses a low-voltage portable pluggable refined reactive power compensation device and a monitoring system, and belongs to the technical field of reactive power compensation devices, the low-voltage portable pluggable refined reactive power compensation device comprises a waterproof box body, a plurality of plugging supports are arranged in the waterproof box body, the plugging supports are uniformly arranged from top to bottom, and compensation modules are arranged on the plugging supports. And an acquisition control module is arranged in the waterproof box body. According to the invention, the standard refinement and stepped compensation unit is directly inserted into the compensation bin after rapid capacitance matching, a master control compensation mode is set, and the standard refinement and stepped compensation unit is installed by using a matched hardware single rod or fixed on the ground and put into operation after being connected in parallel. Telemetering, telesignaling and capacitance value monitoring are supported, anti-theft early warning is achieved, and transportation and installation are convenient. The cloud monitoring platform and the mobile phone APP can monitor the operation condition in real time, and the device is suitable for 0.4 kV voltage grade distribution lines and is mainly used for low power factor or low power supply voltage caused by insufficient reactive compensation due to aging, damage and failure of the reactive compensation device.

Description

technical field [0001] The invention belongs to the technical field of reactive power compensation devices, and in particular relates to a low-voltage portable pluggable refined reactive power compensation device and a monitoring system. Background technique [0002] With the popularity of electrical appliances, reactive power compensation is generally insufficient for end users of rural power grids, and the method of on-site compensation is often used: installing reactive power compensation devices on the spot, but the existing reactive power compensation devices have the following disadvantages: [0003] High time cost: Due to the troubles of bidding, procurement and construction arrangements, it cannot be installed in time; [0004] High economic cost: it is difficult to solve the problem of insufficient reactive power once and for all, the load in rural areas changes rapidly, and the amount of compensation required cannot be accurately predicted, the purchase cost of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/18H02J3/14H02J13/00H02B1/28H02B1/56H02B1/24H02B1/30H02B1/32H02B1/36H02B11/173
CPCH02J3/18H02J3/1892H02J3/144H02J13/00001H02J13/00002H02J13/00006H02J13/00022H02J13/00026H02B1/28H02B1/565H02B1/24H02B1/30H02B1/306H02B1/32H02B1/36H02B11/173
Inventor 石桂强廖记文钟豪李钊泽梁瑞尤吴应剑易嘉栩
Owner 广西电网有限责任公司梧州供电局
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