Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Monopole grounding system and device and method for grounding protection and fault monitoring

A technology of fault monitoring and single-pole grounding, which is applied in the direction of photovoltaic system monitoring, measuring devices, measuring electricity, etc., can solve problems such as low safety, and achieve the effect of solving low safety

Active Publication Date: 2014-07-02
SUNGROW POWER SUPPLY CO LTD
View PDF10 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a grounding protection and fault monitoring device, a single-pole grounding system and a grounding protection and fault monitoring method to solve the problem of low safety in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Monopole grounding system and device and method for grounding protection and fault monitoring
  • Monopole grounding system and device and method for grounding protection and fault monitoring
  • Monopole grounding system and device and method for grounding protection and fault monitoring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0042] The invention provides a grounding protection and fault monitoring device, which is applied to a single-pole grounding system to solve the problem of low safety in the prior art.

[0043] It should be noted that, for the convenience of description, the unipolar grounding system described in the embodiments of the present application all takes the photovoltaic power generation system as an example, including a photovoltaic array that converts solar energy...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a device for grounding protection and fault monitoring. According to the device for grounding protection and fault monitoring, the voltage to ground of the positive electrode and the voltage to ground of the negative electrode of a monopole grounding system are sampled in real time through a fault monitoring device and are converted into corresponding ground impedance values, when the continuouly cumulative frequency that the ground impedance value of a certain electrode of the monopole grounding system is smaller than a preset impedance value exceeds a preset frequency, it is judged that faulty grounding points exist on the electrode, and an alarm is given. According to the device for grounding protection and fault monitoring, online detection of the two electrodes of the monopole grounding system can be conducted in real time when the system operates, detection can be conducted even when the system is not stopped, and the problem of low safety performance in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of electrical detection, in particular to a single-pole grounding system, a grounding protection and fault monitoring device and method. Background technique [0002] In order to avoid the polarization of the photovoltaic cells in the photovoltaic power generation system, thereby affecting the performance of the photovoltaic cells, the prior art forms a single-pole grounding system by grounding the negative pole (or positive pole) of the photovoltaic cell array to solve the problem of the photovoltaic cell. Polarization of the battery. [0003] In order to ensure system safety, the above-mentioned unipolar grounding system should be a unipolar single-point grounding system, so the unipolar grounding system should be equipped with grounding protection and fault monitoring devices to avoid other point grounding faults. Such as figure 1 As shown, the ground protection and fault monitoring device includes: an ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01R31/02H02S50/00H02S40/30
CPCY02E10/50
Inventor 张玉陶磊冯纪归汪耀华吴迎丰
Owner SUNGROW POWER SUPPLY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com