Protecting and measuring integrated comprehensive distribution box

A technology for protecting measurement and control and distribution boxes, applied in the direction of electrical components, circuit devices, etc., can solve problems such as low reliability, measurement information protection of distribution transformer terminals, and close correlation of control functions, so as to improve power supply reliability and reduce The scope and frequency of fault power outages, the effect of convenient management and maintenance

Active Publication Date: 2014-03-05
王成楷 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this patented technical solution are: the measurement information of the distribution transformer terminal cannot be directly related to the protection and control functions of the incoming line switch and other switches, the low-voltage incoming line switch cannot be remotely controlled and automatically controlled, and it...

Method used

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  • Protecting and measuring integrated comprehensive distribution box
  • Protecting and measuring integrated comprehensive distribution box

Examples

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Embodiment 1

[0028] A protection, measurement and control integrated comprehensive distribution box, the primary electrical connection relationship of each component in the distribution box is as follows: figure 2 As shown, the current transformer TA1, the zero-sequence current transformer TA0, and the distribution transformer terminal are connected to the incoming cable side, and the control power module is connected to the incoming cable side through the control power switch QF3. The incoming line switch QF1 is connected in series between the incoming cable and the 0.4kV busbar; the reactive power compensation device is connected to the 0.4kV busbar through the reactive power compensation switch QF2; The incoming 0.4kV busbar is connected to the low-voltage feeder cable at the outlet end. A lightning arrester (or surge protector) is also connected to the A, B, and C phase lines of the 0.4kV bus.

[0029] The access points of current transformer TA1, zero-sequence current transform...

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PUM

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Abstract

The invention discloses a protecting and measuring integrated comprehensive distribution box. A distribution transforming monitor terminal comprises an analog acquisition module, a digital signal processor, a CPU, a clock module, a digital memory, an I/O module and a communication module. The analog acquisition module is connected with the CPU through the DSP. The clock module, the digital memory, the I/O module and the communication module are respectively connected with the CPU. The distribution transforming monitor terminal further comprises a control interface, a state quantity acquisition interface and a communication interface. A reactive compensation switch, an inlet line switch, a control power switch, a feeder line switch and a reactive compensation device are connected with the distribution transforming monitor terminal through the interfaces. The protecting and measuring integrated comprehensive distribution box can integrally monitor and manage a distribution transformer and a low-voltage distribution power grid in a telemetering mode, a telecommand mode, a remote regulating mode and a remote control mode, and can automatically coordinate and adjust the action modes and operation modes of various devices in the distribution box according to factors such as fault types, fault ranges and the urgent degree.

Description

technical field [0001] The invention relates to an integrated distribution box, in particular to an integrated integrated distribution box for protection, measurement and control. [0002] Background technique [0003] At present, the automation level of the low-voltage agricultural network is still in its infancy, and the integrated application of protection, measurement and control of the low-voltage distribution network is almost blank. The promotion and application of the State Grid Corporation's "Electricity Information Collection System" has installed distribution transformer monitoring terminals and smart meters in the distribution station area, and has gradually realized the remote monitoring of electricity, voltage, current, and power in the distribution station area, and realized Remote meter reading for low-voltage power users. According to relevant materials and reports, the pilot projects of distribution transformer stations in some areas have re...

Claims

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Application Information

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IPC IPC(8): H02J13/00
Inventor 王成楷
Owner 王成楷
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