CN107202916A - A kind of series resonance test system monitoring device - Google Patents
A kind of series resonance test system monitoring device Download PDFInfo
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- CN107202916A CN107202916A CN201710338755.6A CN201710338755A CN107202916A CN 107202916 A CN107202916 A CN 107202916A CN 201710338755 A CN201710338755 A CN 201710338755A CN 107202916 A CN107202916 A CN 107202916A
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- series resonance
- test system
- voltage
- resonance test
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The present invention relates to a kind of series resonance test system monitoring device, its technical characterstic is：Including sensor group, signal gathering unit, computing unit, setup unit, evaluation unit and display unit；Sensor group includes current sensor and voltage sensor and accessed in series resonance system；Signal gathering unit is connected by coaxial shielded cable with sensor group；Computing unit, setup unit, evaluation unit are arranged in computer monitoring equipment as software module, the input of computer monitoring equipment be connected with signal gathering unit for realize calculate, setting and Function of Evaluation, computer monitoring equipment is connected output monitoring result with display unit.The present invention is reasonable in design, being capable of effectively all key parameters in Centralizing inspection series resonance test system 30Hz~300Hz frequency ranges, it is to avoid series resonance test system component insulation damages cross cause thermal damage, with it is safe and reliable, easy to use the features such as.
Description
Technical field
The invention belongs to high voltage electrical apparatus technical field, especially a kind of series resonance test system monitoring device.
Background technology
High voltage electric equipment is typically used in the range of rated voltage, rated current, otherwise occur insulation damages or
Cause thermal damage.Series resonance test system can export high voltage, and typically the capacity of single component can be entered during system design
Row estimation, still, in actual use because the influence such as corona, field power supply to each parameter, it is necessary to be monitored.
The frequency conversion source console of series resonance test system typically configures the output current and voltage in monitoring frequency conversion source, partial pressure
Test product voltage is monitored on the peak value meter of device, in addition without other monitoring functions.When applying at the scene, in order to ensure equipment is pacified
Entirely, it sometimes can additionally install the parameter that several pieces of ammeters monitor part component additional, virtually add the complexity of operation.
In summary, the systemic monitoring device for being capable of comprehensive Centralizing inspection data is there is no at present.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of reasonable in design, safe and reliable and user
Just series resonance test system monitoring device.
The present invention solves its technical problem and takes following technical scheme to realize：
A kind of series resonance test system monitoring device, including sensor group, signal gathering unit, computing unit, setting
Unit, evaluation unit and display unit；The sensor group includes current sensor and voltage sensor and accesses series resonance
In system；The signal gathering unit is connected by coaxial shielded cable with sensor group；The computing unit, setting are single
Member, evaluation unit are arranged in computer monitoring equipment as software module, the input and signal of the computer monitoring equipment
Collecting unit is connected for realizing calculating, setting and Function of Evaluation, and the computer monitoring equipment is connected defeated with display unit
Go out monitoring result.
The sensor group includes three current sensors, two voltage sensors, a terminal point for the sensor
Jie Ru not be in each electric current of series resonance system, voltage measurement circuit.
The data that the computing unit is transmitted according to signal gathering unit calculate excitation-transformation variable no-load voltage ratio, excitation-transformation variable output voltage,
Frequency conversion source input voltage and system q.
The setup unit is acquisition loop settings series resonance system power supply, frequency conversion source, excitation-transformation variable, reactor, electric capacity
The rated voltage and electric current and the no-load voltage ratio of capacitor of device
The evaluation unit is comparison loop and is compared all voltages, current parameters and its rated value, and is divided
For following 5 grades：“<50% ", " 50%~75% ", " 75%~90% ", " 90%~100% ", " 100%~110% ",
The evaluation unit outputs signal to display unit..
Advantages and positive effects of the present invention are：
1st, the present invention by three current sensors and two voltage sensors be connected to series resonance test system each
In loop and gather the current signal and voltage signal of corresponding circuit, and being capable of effectively Centralizing inspection series resonance by calculating
All key parameters in pilot system 30Hz~300Hz frequency ranges, it is to avoid series resonance test system component insulation damages
Or cross cause thermal damage.
2nd, the present invention can be to the passes of all components in series resonance test system by computing unit and evaluation unit
Bond parameter is evaluated, and in the same interface display of display unit, reminds operator's attention parameters excessive problem.
Brief description of the drawings
Fig. 1 is the schematic diagram of the present invention；
Fig. 2 is series resonance test systematic schematic diagram；
Embodiment
The embodiment of the present invention is further described below in conjunction with accompanying drawing：
A kind of series resonance test system monitoring device, as shown in figure 1, including sensor group, signal gathering unit, calculating
Unit, setup unit, evaluation unit and display unit；The sensor includes three current sensors, two voltage sensors,
In above-mentioned current sensor and voltage sensor access series resonance system loop；Adopted simultaneously by coaxial shielded cable with signal
Collect unit connection.The computing unit, setup unit, evaluation unit are arranged in computer monitoring equipment as software module,
Realize it is corresponding calculate, setting and Function of Evaluation, on the one hand the computer monitoring equipment be connected with signal gathering unit reception
The signal of collection, on the other hand the computer monitoring equipment be connected with display unit output monitoring result.Below to each mould
Block is illustrated respectively：
Three current sensors of sensor group, terminal of two voltage sensors are respectively connected to series resonance system and returned
Phase induced current, the voltage measurement circuit on road, as shown in Fig. 2 and measuring the following current signal and electricity of series resonance test system
Press signal：IY、IT、IT'、UT、UC。
Signal gathering unit input is connected to receive five sensor collection I with sensorY、IT、IT'、UT、UCLetter
Number, conversion reduction treatment is carried out to signal, the output of signal gathering unit is connected reception with computing unit, and collection result is passed
Give computing unit.
General principle of the computing unit based on circuit, calculates excitation-transformation variable no-load voltage ratioExcitation-transformation variable output voltage UT'=
kUT, frequency conversion source input voltageSystem q
Setup unit is to obtain loop settings series resonance system power supply, frequency conversion source, excitation-transformation variable, reactor, capacitor
The no-load voltage ratio of rated voltage and electric current and capacitor.
Evaluation unit is comparison loop, and all voltages, current parameters and its rated value are compared by it, and divides 5
Grade：“<50% ", " 50%~75% ", " 75%~90% ", " 90%~100% ", " 100%~110% ".Evaluation unit
Output signal to display unit.
Display unit is liquid crystal display, the evaluation result for showing all parameters and voltage and current parameter.
It is emphasized that embodiment of the present invention is illustrative, rather than it is limited, therefore present invention bag
Include and be not limited to embodiment described in embodiment, it is every by those skilled in the art's technique according to the invention scheme
The other embodiment drawn, also belongs to the scope of protection of the invention.
Claims (5)
1. a kind of series resonance test system monitoring device, it is characterised in that：Including sensor group, signal gathering unit, calculating
Unit, setup unit, evaluation unit and display unit；The sensor group includes current sensor and voltage sensor and accessed
In series resonance system；The signal gathering unit is connected by coaxial shielded cable with sensor group；The computing unit,
Setup unit, evaluation unit are arranged in computer monitoring equipment as software module, the input of the computer monitoring equipment
It is connected with signal gathering unit for realizing calculating, setting and Function of Evaluation, the computer monitoring equipment and display unit phase
Connection output monitoring result.
2. a kind of series resonance test system monitoring device according to claim 1, it is characterised in that：The sensor group
Including three current sensors, two voltage sensors, a terminal of the sensor is respectively connected to series resonance system
In each electric current, voltage measurement circuit.
3. a kind of series resonance test system monitoring device according to claim 1 or 2, it is characterised in that：It is described to calculate
The data that unit is transmitted according to signal gathering unit calculate excitation-transformation variable no-load voltage ratio, excitation-transformation variable output voltage, frequency conversion source input voltage and
System q.
4. a kind of series resonance test system monitoring device according to claim 1 or 2, it is characterised in that：The setting
Unit is acquisition loop settings series resonance system power supply, frequency conversion source, excitation-transformation variable, reactor, the rated voltage of capacitor and electricity
The no-load voltage ratio of stream and capacitor.
5. a kind of series resonance test system monitoring device according to claim 1 or 2, it is characterised in that：It is described to evaluate
Unit is comparison loop and is compared all voltages, current parameters and its rated value, and is divided into following 5 grades：“<
50% ", " 50%~75% ", " 75%~90% ", " 90%~100% ", " 100%~110% ", the evaluation unit output letter
Number to display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710338755.6A CN107202916A (en) | 2017-05-15 | 2017-05-15 | A kind of series resonance test system monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710338755.6A CN107202916A (en) | 2017-05-15 | 2017-05-15 | A kind of series resonance test system monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107202916A true CN107202916A (en) | 2017-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710338755.6A Pending CN107202916A (en) | 2017-05-15 | 2017-05-15 | A kind of series resonance test system monitoring device |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303386A (en) * | 2007-05-11 | 2008-11-12 | 河海大学常州校区 | Sensor device for detecting high voltage circuit electrical parameter |
| CN102081135A (en) * | 2009-11-30 | 2011-06-01 | 苏州市华电电气技术有限公司 | Alternating-current voltage resistance test device |
| US20120123713A1 (en) * | 2007-05-22 | 2012-05-17 | Marvell Semiconductor, Inc. | Control of Delivery of Current Through One or More Discharge Lamps |
| CN203084116U (en) * | 2013-01-08 | 2013-07-24 | 武汉汉镇既济电力设备有限公司 | Monitoring device suitable for power distribution system |
| CN203136219U (en) * | 2013-01-04 | 2013-08-14 | 西安奥邦科技有限责任公司 | Monitoring system of large-power parallel connected/series connected resonant intermediate frequency power supply |
| CN103713210A (en) * | 2013-11-01 | 2014-04-09 | 天津工业大学 | Dry power transformer monitoring and diagnosis system |
| CN105353283A (en) * | 2015-11-30 | 2016-02-24 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | AC voltage-withstand test method for 500kV GIL equipment |
| CN205176206U (en) * | 2015-12-11 | 2016-04-20 | 陈烁凯 | Frequency conversion series resonance ac voltage withstand test test device |
-
2017
- 2017-05-15 CN CN201710338755.6A patent/CN107202916A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303386A (en) * | 2007-05-11 | 2008-11-12 | 河海大学常州校区 | Sensor device for detecting high voltage circuit electrical parameter |
| US20120123713A1 (en) * | 2007-05-22 | 2012-05-17 | Marvell Semiconductor, Inc. | Control of Delivery of Current Through One or More Discharge Lamps |
| CN102081135A (en) * | 2009-11-30 | 2011-06-01 | 苏州市华电电气技术有限公司 | Alternating-current voltage resistance test device |
| CN203136219U (en) * | 2013-01-04 | 2013-08-14 | 西安奥邦科技有限责任公司 | Monitoring system of large-power parallel connected/series connected resonant intermediate frequency power supply |
| CN203084116U (en) * | 2013-01-08 | 2013-07-24 | 武汉汉镇既济电力设备有限公司 | Monitoring device suitable for power distribution system |
| CN103713210A (en) * | 2013-11-01 | 2014-04-09 | 天津工业大学 | Dry power transformer monitoring and diagnosis system |
| CN105353283A (en) * | 2015-11-30 | 2016-02-24 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | AC voltage-withstand test method for 500kV GIL equipment |
| CN205176206U (en) * | 2015-12-11 | 2016-04-20 | 陈烁凯 | Frequency conversion series resonance ac voltage withstand test test device |
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Application publication date: 20170926 |