Unlock instant, AI-driven research and patent intelligence for your innovation.

Automatic energy obtaining power supply with online monitoring function

A technology of self-extraction and power supply, applied in emergency power supply arrangement, conversion equipment without intermediate conversion to AC, electrical components, etc., can solve the problem of uncontrollable circuit breaker opening and so on

Inactive Publication Date: 2011-05-18
NANJING INTELLIGENT APP
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if the device has a backup battery, it will be exhausted when the protection action takes a long time, making it impossible to control the opening of the circuit breaker

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
  • Automatic energy obtaining power supply with online monitoring function
  • Automatic energy obtaining power supply with online monitoring function
  • Automatic energy obtaining power supply with online monitoring function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] Below in conjunction with the accompanying drawings, the present invention is specifically introduced as follows:

[0012] The design of the present invention includes (such as figure 1 shown): fast saturation coil, current energy acquisition module, energy release module, current detection module, switching power supply module, voltage monitoring module, mutual backup power supply module, DC_DC output module.

[0013] 1. Fast saturation coil

[0014] The fast saturation coil changes the primary high current (100A~50kA) into the secondary small current (0~50A), which is convenient for secondary energy extraction. The fast saturation coil does not require very high accuracy, and has the characteristics of fast saturation. When the current is near the rated value, the coil works in the linear region, and the output changes in a linear proportion; when the line fails, the short circuit is more than ten times the rated current, and the coil works In the saturation region,...

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 relates to a power system automating technology, in particular to a power supply of a relay protection or automatic control device. In order to solve the problem of power supply failure under the condition of input short circuit, the power supply provides the technical scheme that current and voltage standby power supply is adopted; power supply output is normal by current energy obtainment during input short circuit; meanwhile, a current and voltage measuring function is provided. After the power supply ensures that a line is switched on, a relay protection device or automatic control device can normally work regardless of open circuit or short circuit; and the device can continuously work for a period of time by a standby power supply when the line is switched off. The invention has the advantage of strengthening the power supply reliability of the relay protection device and is suitable for the working environments of wilderness, high voltage, and the like.

Description

technical field [0001] The invention relates to power system automation technology, in particular to a power supply for a relay protection or automatic control device. Background technique [0002] In the protection and control devices in the power system, the power supply mode of switching power supply is often adopted. The input of the switching power supply is generally 85V ~ 265V, and its input sources are divided into three aspects: DC screen power supply; or directly from the power supply line; or the power supply line is obtained after the voltage transformer is stepped down, and the DC screen itself has a backup The battery, even after the voltage is gone, can continue to power other devices. However, the DC screen is usually bulky; it is installed in the control room, which has high environmental requirements; it is expensive. In some remote places, if you only need one or two protection devices, it is not worth the loss if you equip a DC screen; in high-voltage s...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/04H02M3/07H02J9/06
Inventor 张杭王道军
Owner NANJING INTELLIGENT APP