CN110504686A - Single phase ac power frequency intelligent protection safety power supply - Google Patents
Single phase ac power frequency intelligent protection safety power supply Download PDFInfo
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- CN110504686A CN110504686A CN201910893143.2A CN201910893143A CN110504686A CN 110504686 A CN110504686 A CN 110504686A CN 201910893143 A CN201910893143 A CN 201910893143A CN 110504686 A CN110504686 A CN 110504686A
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- module
- power supply
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- power
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Protection Of Static Devices (AREA)
Abstract
The invention discloses single phase ac power frequency intelligent protection safety power supplies, including starter module；IT power system modules；Voltage regulation adjustor module；Power switcher module；Hold sense short-circuit spark suppressor module；Radio insulation monitoring module；Emergency power-cutting switch module；Master control chip；Auxiliary control chip.The present invention passes through the drain conditions in radio insulation monitoring module real-time detection route, accelerate electric leakage investigation and solves speed, and radio insulation monitoring module discharges leakage current by high level ground resistance, the probability that reduction personnel get an electric shock, high current is inhibited in reactor by holding sense short-circuit spark suppressor module, avoid high current from damaging equipment, and inhibit speed relatively it is mechanical faster, effect is more preferable.
Description
Technical field
The present invention relates to safety power supply field more particularly to single phase ac power frequency intelligent protection safety power supplies.
Background technique
Injury will be generated to human body when voltage is greater than 36V, the size of injury is with fixed, the bigger wound of electric current according to size of current
Evil is bigger, this electric current is from two aspects, the electric current between line and line, the electric current between line and the earth；
By taking the electric current between line and the earth as an example, above existing market most of electricity system be TN, TT, TNS, TNC,
A variety of earthed systems such as TNCS, but have a common feature, i.e. neutral ground or neutral point inside these earthed systems
It is indirect earthed, i.e., it with the N phase of electricity system is greatly directly to connect, people station is being the equal of standing directly in N phase line on the ground greatly
Face, and a no ground system if it exists, due to no any access point over the ground, all electric potential floatings, people goes contact to lead at this time
Equipotential is equivalent to when line, but when any one of this no ground system phase point ground connection, institute's band potential voltage can be primary voltage
'sTimes, therefore a possibility that popularization, is smaller, and cost is huge.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and the single phase ac power frequency proposed is intelligently protected
Protect safety power supply.
To achieve the goals above, present invention employs following technical solutions:
Single phase ac power frequency intelligent protection safety power supply, comprising:
Starter module, for connecting line, startup power supply equipment；
IT power system modules avoid heavy current impact from influencing power-supply device for line and power-supply device to be isolated
And line, and IT power system modules include multiple adjustable gear outputs；
Voltage regulation adjustor module, for unstable voltage to be reached metastable state output by buck or boost；
Power switcher module, for safety power supply input to be quickly switched to line output；
Hold sense short-circuit spark suppressor module, causes spark caused by high current in route existing because of short circuit for inhibiting
As；
Radio insulation monitoring module, the online state of insulation for detection device and subscribers' line；
Emergency power-cutting switch module, for may be switched to line output when equipment breaks down；
Master control chip carries out all gears of analysis demodulation manipulation by the data that each sensor is sent back for acquiring
Structure；
Auxiliary control chip, for rapid computations by short circuit, failure, overcurrent, the data that overload is returned.
Preferably, the starter module, IT power system modules, voltage regulation adjustor module, power supply switching module, appearance sense
Short-circuit spark suppressor module and radio insulation monitoring module are sequentially connected, the pressure stabilizing adjustment module and power supply switching module point
It is not electrically connected at the input terminal of IT power system modules, starter module, IT electricity is electrically connected in the Master control chip
Source system module, power supply switching module, holds sense short-circuit spark suppressor module and radio insulation monitoring module at voltage regulator module,
The Master control chip is electrically connected there are two mutual inductance current detection circuit, and two mutual inductance current detection circuits are both connected to
Hold between sense short-circuit spark suppressor module and radio insulation monitoring module；
The special power supply that IT power system modules use high magnetic conduction orientation silicon steel to be made, insulating coefficient are up to
3000V, induction reactance system is high, can bear 3 times or more of dash current without damaging to line voltage；
When route or equipment generate the situation of short circuit, biggish electric current can be generated and cause spark, this spark pole
Its danger can ignite combustible and explosive articles, and holding sense short-circuit spark suppressor module can inhibit high current in reactor, due to
High current is pressed into magnetic energy by the characteristic that reactor current cannot be mutated, then be will test signal and be transferred to Master control chip and do and locate
Reason；
Direct current 100V electric signal is sent to IT power supply output system by radio insulation monitoring module, according to output secondary line
The high level ground resistance on ground calculates electric current between the earth, obtains leakage current value and resistance value.
Preferably, Smoke Detection module, display screen, indicator light, acousto-optic system has been electrically connected in the Master control chip
It unites module and global function DTU module, the global function DTU module includes 2-3-4G/NB-IOT, wired and tri- kinds of work sides WIFI
Formula, the smog that Smoke Detection module is able to detect fuel gas around and burning generates, the signal that then will test are transferred to master
Chip is controlled, Master control chip controls and cuts off safety power supply, increases its safety, can not detect smog and fuel gas
When, safety power supply is opened, it is easy to use.
Preferably, the starter module includes that level-one start-up circuit, second level delay circuit and three-level run circuit, described
Holding sense short-circuit spark suppressor module includes Current Mutual Inductance circuit and reactance input circuit；
Starter module passs formula Starting mode using grade, first by the J4 actuating of relay after+12V power supply enters system, by
There is no delay circuit in it, then powers on and both started to work, second level part is made of delay circuit, and delay time grows about 1 second,
Work completes rear class and passs the third level, and the first order is started part after third level work and is cut off, starting work is completed；
Hold sense short-circuit spark suppressor module and auxiliary control chip cooperates and inhibits high current, dual power supply amplifier will be electric
Anti- input circuit, the information of Current Mutual Inductance circuit acquisition back pass through paraphase enhanced processing, are passing through R175, C55, R185, C58
The buffer circuit of composition is given signal to auxiliary control chip and is handled, two communication serial ports of auxiliary control chip reservation,
Three state instruction class interfaces and an I/O interface, one in two communication serial ports by data back to Master control chip,
, as message, three state instruction class interfaces are respectively auxiliary control chip run indicator, reactance input circuit letter for another
Number action indicator, the movement instruction of Current Mutual Inductance circuit signal, an I/O interface give action signal to Master control chip.
Preferably, the input terminal that starter module is electrically connected in the both ends of the emergency power-cutting switch module connects and electricity
The output end of source switching module；
When safety power supply equipment breaks down, it is defeated that Master control chip control power supply switching module is switched to line
Enter, then power-cutting switch of meeting an urgent need closure, power supply switching module disconnects the route of safety power supply equipment, and guaranteeing will not in use process
Power-off.
Preferably, Master control chip and voltage regulation adjustor module is electrically connected in the auxiliary control chip；
Auxiliary control chip is connect with Master control chip to carry out for the data of calculation process to be transmitted to Master control chip
Decision, auxiliary control chip are connect for detecting voltage regulation adjustor module input voltage and controlling pressure stabilizing with voltage regulation adjustor module
Adjustor module boost or depressurization makes output voltage reach stable state.
The invention has the following advantages:
1, the leakage current value and resistance value that route is detected by radio insulation monitoring module, can quickly find exist in route
Drain conditions are damaged, accelerates professional and speed is solved to the investigation of equipment fault.
2, inhibited in reactor using the high current generated when holding sense short-circuit spark suppressor module for short circuit, and reactance
Electric current in device can not mutate, then high current is pressed into magnetic energy by reactor, solve high current and set to safety power supply
Standby impact, and more mechanical spark-extinguishing speed is faster, effect is more preferable.
3, safety power supply equipment passes through radio insulation monitoring module in the online state of insulation of detection device and subscribers' line
While, by the leakage current in high level ground resistance release IT power system modules, the high pressure that phase point ground connection generates is avoided, then
It avoids artificially contacting and leading to the case where getting an electric shock, increases the safety that equipment uses.
In conclusion the present invention accelerates electric leakage by the drain conditions in radio insulation monitoring module real-time detection route
Investigation and solution speed, and radio insulation monitoring module discharges leakage current by high level ground resistance, reduction personnel get an electric shock
Probability, by hold sense short-circuit spark suppressor module by high current inhibit in reactor, avoid high current damage equipment, and
Inhibit speed relatively it is mechanical faster, effect is more preferable.
Detailed description of the invention
Fig. 1 is the module composition schematic diagram of single phase ac power frequency intelligent protection safety power supply proposed by the present invention；
Fig. 2 is the starter modular circuit schematic diagram of single phase ac power frequency intelligent protection safety power supply proposed by the present invention；
Fig. 3 is the Current Mutual Inductance circuit diagram of single phase ac power frequency intelligent protection safety power supply proposed by the present invention；
Fig. 4 is the reactance input circuit schematic diagram of single phase ac power frequency intelligent protection safety power supply proposed by the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-4, single phase ac power frequency intelligent protection safety power supply, comprising:
Starter module, for connecting line, startup power supply equipment；
IT power system modules avoid heavy current impact from influencing power-supply device for line and power-supply device to be isolated
And line, and IT power system modules include multiple adjustable gear outputs；
Voltage regulation adjustor module, for unstable voltage to be reached metastable state output by buck or boost；
Power switcher module, for safety power supply input to be quickly switched to line output；
Hold sense short-circuit spark suppressor module, causes spark caused by high current in route existing because of short circuit for inhibiting
As；
Radio insulation monitoring module, the online state of insulation for detection device and subscribers' line；
Emergency power-cutting switch module, for may be switched to line output when equipment breaks down；
Master control chip carries out all gears of analysis demodulation manipulation by the data that each sensor is sent back for acquiring
Structure；
Auxiliary control chip, for rapid computations by short circuit, failure, overcurrent, the data that overload is returned.
Starter module, voltage regulation adjustor module, power supply switching module, holds sense short-circuit spark suppression at IT power system modules
Device module and radio insulation monitoring module processed are sequentially connected, and pressure stabilizing adjustment module and power supply switching module are electrically connected in IT
Starter module, IT power system modules, voltage-stablizer mould is electrically connected in the input terminal of power system modules, Master control chip
Block, power supply switching module, appearance sense short-circuit spark suppressor module and radio insulation monitoring module, Master control chip are electrically connected with
Two mutual inductance current detection circuits, two mutual inductance current detection circuits are both connected to appearance sense short-circuit spark suppressor module and radio
Between insulation monitoring module；
The special power supply that IT power system modules use high magnetic conduction orientation silicon steel to be made, insulating coefficient are up to
3000V, induction reactance system is high, can bear 3 times or more of dash current without damaging to line voltage；
When route or equipment generate the situation of short circuit, biggish electric current can be generated and cause spark, this spark pole
Its danger can ignite combustible and explosive articles, and holding sense short-circuit spark suppressor module can inhibit high current in reactor, due to
High current is pressed into magnetic energy by the characteristic that reactor current cannot be mutated, then be will test signal and be transferred to Master control chip and do and locate
Reason；
Direct current 100V electric signal is sent to IT power supply output system by radio insulation monitoring module, according to output secondary line
The ohmer on ground calculates electric current between the earth, obtains leakage current value and resistance value.
Smoke Detection module, display screen, indicator light, acousto-optic system module and Quan Gong has been electrically connected in Master control chip
Can DTU module, global function DTU module includes 2-3-4G/NB-IOT, wired and tri- kinds of working methods of WIFI, Smoke Detection module
It is able to detect the smog of fuel gas around and burning generation, the signal that then will test is transferred to Master control chip, main control
Chip controls simultaneously cut off safety power supply, increase its safety, when that can not detect smog and fuel gas, open safety electricity
Source, it is easy to use.
Starter module includes level-one start-up circuit, second level delay circuit and three-level operation circuit, holds sense short-circuit spark suppression
Device module processed includes Current Mutual Inductance circuit and reactance input circuit；
Starter module passs formula Starting mode using grade, first by the J4 actuating of relay after+12V power supply enters system, by
There is no delay circuit in it, then powers on and start to work, second level part is made of delay circuit, and delay time grows about 1 second,
Work completes rear class and passs the third level, and the first order is started part after third level work and is cut off, starting work is completed；
Hold sense short-circuit spark suppressor module and auxiliary control chip cooperates and inhibits high current, dual power supply amplifier will be electric
Anti- input circuit, the information of Current Mutual Inductance circuit acquisition back pass through paraphase enhanced processing, are passing through R175, C55, R185, C58
The buffer circuit of composition is given signal to auxiliary control chip and is handled, two communication serial ports of auxiliary control chip reservation,
Three state instruction class interfaces and an I/O interface, one in two communication serial ports by data back to Master control chip,
, as message, three state instruction class interfaces are respectively auxiliary control chip run indicator, reactance input circuit letter for another
Number action indicator, the movement instruction of Current Mutual Inductance circuit signal, an I/O interface give action signal to Master control chip.
The input terminal that starter module is electrically connected in the both ends of emergency power-cutting switch module connects and power supply switching module
Output end；
When safety power supply equipment breaks down, it is defeated that Master control chip control power supply switching module is switched to line
Enter, then power-cutting switch of meeting an urgent need closure, power supply switching module disconnects the route of safety power supply equipment, and guaranteeing will not in use process
Power-off.
Master control chip and voltage regulation adjustor module is electrically connected in auxiliary control chip；
Auxiliary control chip is connect with Master control chip to carry out for the data of calculation process to be transmitted to Master control chip
Decision, auxiliary control chip are connect for detecting voltage regulation adjustor module input voltage and controlling pressure stabilizing with voltage regulation adjustor module
Adjustor module boost or depressurization makes output voltage reach stable state.
In the use of the present invention, line electric current enters starter module, in starter module ,+12V power supply enters
It first then being powered on and is started to work since it does not have delay circuit by the J4 actuating of relay after system, delay time grows about 1 second,
Work completes rear class and passs the third level, and the first order is started part after third level work and is cut off, starting work is completed；
Alternating current enters IT power system modules from starter, and in IT power system modules, alternating current is exported by partial pressure mutual inductance
Induced voltage, this induced voltage are input to voltage regulation adjustor module and carry out pressure stabilizing adjusting, and stable voltage flows through appearance sense short circuit fire
Flower suppressor module, is then input to radio insulation monitoring module, and finally clean voltage is stablized in output；
Master control chip connects the detection case of starter module detection starter module, and Master control chip connects IT power supply
System module detects the state of temperature of IT power system modules, and Master control chip connects voltage regulation adjustor module detection IT system
Output voltage level, Master control chip connection hold sense short-circuit spark suppressor module and acquire mutual inducing current, Master control chip connection
Hold acquisition equipment output electric current and dash current, main control between sense short-circuit spark suppressor module and radio insulation monitoring module
Chip connects radio insulation monitoring module detection insulation resistance and leakage current；
The data processing that Master control chip will test shows that indicator light indicates modules working condition by display screen,
When short circuit occurs in route, electric current increases in route, holds sense short-circuit spark suppressor module and inhibits high current in reactor
It is inside converted into magnetic energy, avoid high current damage circuit and generates electric spark, radio insulation monitoring module penetrates direct current 100V at this time
Electric signal is sent to IT power supply output system, calculates electric current according to the ohmer on ground between output secondary line and the earth, obtains leakage
Current value and resistance value are simultaneously shown on a display screen, convenient for quickly investigation problem.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. single phase ac power frequency intelligent protection safety power supply characterized by comprising
Starter module, for connecting line, startup power supply equipment；
IT power system modules avoid heavy current impact from influencing power-supply device and city for line and power-supply device to be isolated
Electric line, and IT power system modules include multiple adjustable gear outputs；
Voltage regulation adjustor module, for unstable voltage to be reached metastable state output by buck or boost；
Power switcher module, for safety power supply input to be quickly switched to line output；
Hold sense short-circuit spark suppressor module, causes pyrophoric behavio(u)r caused by high current in route because of short circuit for inhibiting；
Radio insulation monitoring module, the online state of insulation for detection device and subscribers' line；
Emergency power-cutting switch module, for may be switched to line output when equipment breaks down；
Master control chip carries out all linkage mechanisms of analysis demodulation manipulation by the data that each sensor is sent back for acquiring；
Auxiliary control chip, for rapid computations by short circuit, failure, overcurrent, the data that overload is returned.
2. single phase ac power frequency intelligent protection safety power supply according to claim 1, which is characterized in that the starter mould
Block, IT power system modules, voltage regulation adjustor module, power supply switching module, appearance sense short-circuit spark suppressor module and radio are exhausted
Edge detection module is sequentially connected, and the pressure stabilizing adjustment module and power supply switching module are electrically connected in IT power system modules
Input terminal, starter module, IT power system modules, voltage regulator module, power supply is electrically connected in the Master control chip
Switching module, appearance sense short-circuit spark suppressor module and radio insulation monitoring module, the Master control chip are electrically connected with two
A mutual inductance current detection circuit, two mutual inductance current detection circuits are both connected to appearance sense short-circuit spark suppressor module and penetrate
It is electrically insulated between detection module.
3. single phase ac power frequency intelligent protection safety power supply according to claim 1, which is characterized in that the master control coremaking
Smoke Detection module, display screen, indicator light, acousto-optic system module and global function DTU module has been electrically connected in piece, described complete
Function DTU module includes 2-3-4G/NB-IOT, wired and tri- kinds of working methods of WIFI.
4. single phase ac power frequency intelligent protection safety power supply according to claim 1, which is characterized in that the starter mould
Block includes level-one start-up circuit, second level delay circuit and three-level operation circuit, and the appearance sense short-circuit spark suppressor module includes
Current Mutual Inductance circuit and reactance input circuit.
5. single phase ac power frequency intelligent protection safety power supply according to claim 1, which is characterized in that the emergency power transmission
The input terminal that starter module is electrically connected in the both ends of switch module connects and the output end of power supply switching module.
6. single phase ac power frequency intelligent protection safety power supply according to claim 1, which is characterized in that the auxiliary control
Master control chip and voltage regulation adjustor module is electrically connected in chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910893143.2A CN110504686A (en) | 2019-09-20 | 2019-09-20 | Single phase ac power frequency intelligent protection safety power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910893143.2A CN110504686A (en) | 2019-09-20 | 2019-09-20 | Single phase ac power frequency intelligent protection safety power supply |
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| Publication Number | Publication Date |
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| CN110504686A true CN110504686A (en) | 2019-11-26 |
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| CN201910893143.2A Pending CN110504686A (en) | 2019-09-20 | 2019-09-20 | Single phase ac power frequency intelligent protection safety power supply |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040101143A (en) * | 2004-11-08 | 2004-12-02 | (주)에이엔피테크놀러지 | Power Saver consisted of Electronic Auto Transformer and Standby Power Breaker with Power Switching Semiconductor |
| US20060145645A1 (en) * | 2005-01-06 | 2006-07-06 | Lg Electronics Inc. | Power control apparatus for motor |
| CN202384826U (en) * | 2011-12-22 | 2012-08-15 | 刘联华 | Emergency lighting centralized power supply cabinet powered by adopting IT (Information Technology) system |
| CN102983754A (en) * | 2012-12-27 | 2013-03-20 | 思源电气股份有限公司 | Parallel variable frequency power supply for high power and high voltage test |
| CN202840926U (en) * | 2012-10-30 | 2013-03-27 | 宁波永耀信息科技有限公司 | Striking-resistant and high-pressure-resistant remote control and delay starting power supply |
| CN205195547U (en) * | 2015-12-08 | 2016-04-27 | 重庆上联青电科技有限公司 | Medical power supply with keep apart output |
-
2019
- 2019-09-20 CN CN201910893143.2A patent/CN110504686A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040101143A (en) * | 2004-11-08 | 2004-12-02 | (주)에이엔피테크놀러지 | Power Saver consisted of Electronic Auto Transformer and Standby Power Breaker with Power Switching Semiconductor |
| US20060145645A1 (en) * | 2005-01-06 | 2006-07-06 | Lg Electronics Inc. | Power control apparatus for motor |
| CN202384826U (en) * | 2011-12-22 | 2012-08-15 | 刘联华 | Emergency lighting centralized power supply cabinet powered by adopting IT (Information Technology) system |
| CN202840926U (en) * | 2012-10-30 | 2013-03-27 | 宁波永耀信息科技有限公司 | Striking-resistant and high-pressure-resistant remote control and delay starting power supply |
| CN102983754A (en) * | 2012-12-27 | 2013-03-20 | 思源电气股份有限公司 | Parallel variable frequency power supply for high power and high voltage test |
| CN205195547U (en) * | 2015-12-08 | 2016-04-27 | 重庆上联青电科技有限公司 | Medical power supply with keep apart output |
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Application publication date: 20191126 |
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