CN201425604Y - Turbine efficiency testing device - Google Patents
Turbine efficiency testing device Download PDFInfo
- Publication number
- CN201425604Y CN201425604Y CN200920137242XU CN200920137242U CN201425604Y CN 201425604 Y CN201425604 Y CN 201425604Y CN 200920137242X U CN200920137242X U CN 200920137242XU CN 200920137242 U CN200920137242 U CN 200920137242U CN 201425604 Y CN201425604 Y CN 201425604Y
- Authority
- CN
- China
- Prior art keywords
- current
- turbine efficiency
- acquisition module
- test unit
- transmitter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a testing device for testing electrical variables or any types of physical variables through converting the physical variables into the electrical variables, in particularto a turbine efficiency testing device. The device is characterized in that the utility model provides the turbine efficiency testing device which distinguishes the connection end circuits of a current testing circuit and a voltage testing circuit; and meanwhile, a resistor required for current test and a direct-current power supply required for internal power supply are internally arranged in aconnection device, so that the testing operation is simple and convenient. In addition, because the two circuits, a voltage terminal and a current terminal, are not easily subjected to hybrid connection when in use, the use safety of the testing device is improved.
Description
Technical field
The utility model relates to a kind ofly measures electric variable or by converting the test unit that electric variable is measured the physical descriptor of any kind of to, particularly a kind of turbine efficiency test unit.
Background technology
In the prior art, the turbine efficiency test unit includes transmitter and acquisition module, the induction end of transmitter connects the tested hydraulic turbine, because the parameter of test mostly is non-electrical parameter greatly, or a kind of big electrical parameter, transmitter converts above-mentioned non-electrical parameter or big electrical parameter the little electrical parameter of a kind of voltage or electric current to, and then sends acquisition module to, the data that last basis records are calculated, and draw hydraulic turbine operating head, flow, the isoparametric value of efficient.
The acquisition module of above-mentioned turbine efficiency test unit has positive and negative two connection terminals, when measuring, if the amount of test is the magnitude of current, need be connected in series a resistance to transmitter, connect test lead then at the resistance two ends, at last lead is connected on positive and negative two connection terminals of acquisition module according to positive and negative polarity is correctly corresponding.If the amount of test is a voltage, then connects test lead, and then lead is connected on positive and negative two connection terminals of acquisition module according to positive and negative polarity is correctly corresponding at the two ends of transmitter.The weak point of this technology is: needs when measuring two kinds of different electric weight to handle respectively, when particularly measuring the magnitude of current, needs instant series resistor, and loaded down with trivial details in the operation, complicated; On the other hand, because the connection terminal of acquisition module has only two, no matter be that measuring voltage or electric current all use same terminal, this just requires the operating personnel can not misconnection, otherwise adopts voltage circuit all may cause equipment failure when adopting current circuit or measuring electric current during measuring voltage.
The utility model content
The purpose of this utility model is to provide a kind of simple to operate according to the deficiencies in the prior art part, and to the turbine efficiency test unit of device security.
The utility model is realized by following approach:
The turbine efficiency test unit, include acquisition module and transmitter, its structural feature is, also include termination, termination includes voltage end, current terminal, resistance and signal anode, and lead picks out via the transmission ends of acquisition module, connect signal anode, resistance, current terminal then in regular turn, the transmitter two ends have two test leads, and wherein one connects the signal anode, and another root connects current terminal or voltage end.
During use, measuring current amount if desired, one in the test lead at transmitter two ends connects the signal anode, and another root then connects current terminal; Test voltage amount if desired, then with in the test lead at transmitter two ends another with connecting voltage end.So just the test with the voltage and the magnitude of current makes a distinction, owing to be serially connected with resistance between current terminal and the signal anode, therefore when measuring electric current, does not need to do the operation of series resistor again, therefore measures just more simple, convenient.On the other hand,, just be not easy hybrid junction when therefore using, improved the usage safety performance of test unit because voltage end and current terminal are divided into two-way.
The utility model can further be specially:
Termination also includes a kind of change-over switch, and its switching common ends is connected with the earth terminal of acquisition module, and the end in the two switch free ends is connected with voltage end, and the other end then is connected with current terminal.
During use, when needing the measuring current amount, earlier change-over switch is dialled to current terminal, and then the test lead of transmitter is received current terminal; When needing the test voltage amount, earlier change-over switch is dialled to voltage end, and then the test lead of transmitter is received voltage end.Because two test leads of transmitter should have an earth terminal that connects test unit, if the employing common ground then causes the circuit confusion unavoidably, if adopt switch to distinguish, just circuit can be simplified, the hookup of the voltage and the magnitude of current can also be clearly distinguished simultaneously.
Termination also includes a built-in power module, and current terminal includes feeder ear and the outer feeder ear of electric current in the electric current, and feeder ear is connected in series with the built-in power module in the electric current.
When using transmitter to measure the magnitude of current, need power to it, the mode of power supply generally has two kinds, and a kind of is to adopt the 220V Alternating Current Power Supply, and another kind of mode is to adopt 0～24V powered by direct current.The hydroelectric power plant powers by DC power system at wire transmitter, or transmitter can be connected to the 220V interchange
On the electricity, this is a kind of outer power supply mode; If there is not external power source that transmitter is powered, then needing provides 0～24V powered by direct current in addition, and this mode is referred to as interior power supply mode.
Prior art often needs to carry a cover 0～24V powered by direct current in use again, causes inconvenience.In present technique, power module is placed directly in the test unit, become a kind of built-in power, and provide one to connect the termination, so in use, outside having, under the situation of power supply, just can not select interior power supply terminal, use built-in power that transmitter is powered, make integrated operation more easy.
The utility model can also further be specially:
The built-in power module is the power module of DC24V.
According to the equipment requirements of transmitter, can select the power module of DC24V or DC48V specification or other specifications.
It is the acquisition module of 4711A that acquisition module adopts the model of grinding the production of magnificent company.
The characteristics of this acquisition module are: can improve operating accuracy and anti-electromagnetic interference capability, comprise following advantage: a.AD resolution is 12, and sampling precision is 0.1%; B. sample frequency can be provided with as required flexibly, and the highest sample frequency can be up to 1kHz.Above advantage should cooperate software to implement, but importantly hardware aspect has provided alternative platform.
In sum, characteristics of the present utility model are, a kind of turbine efficiency test unit is provided, it has distinguished the link circuit of two-way test circuits such as the magnitude of current and voltage, the magnitude of current is tested needed resistance simultaneously, the needed direct supply of interior power supply is built in the termination, makes test operation simple, convenient.In addition,, just be not easy hybrid junction when therefore using, improved the usage safety performance of test unit because voltage end and current terminal are divided into two-way.
Description of drawings
Figure 1 shows that the electrical block diagram of turbine efficiency test unit described in the utility model;
Below in conjunction with embodiment the utility model is described further.
Specific embodiment
Most preferred embodiment:
With reference to accompanying drawing 1, the turbine efficiency test unit includes transmitter, acquisition module and termination, and termination includes signal anode, resistance R, current terminal, voltage end, change-over switch K and built-in power module.Current terminal includes feeder ear and the outer feeder ear of electric current in the electric current, and built-in power module specification is DC24V, and acquisition module is that a kind of model of grinding the production of magnificent company is the acquisition module of 4711A.
Acquisition module always has 8 drive tests examination transmission interface, the wiring lead picks out from the transmission interface (transmission ends) of acquisition module, connect signal anode, resistance R, the outer feeder ear of electric current (feeder ear in the electric current) in regular turn, be connected to the switch terminals of change-over switch K then, another switch terminals of change-over switch K is connected to voltage end afterwards.The switching common ends of 8 tunnel change-over switch K is connected in series and is connected to the AGND end of module.
The built-in power module is connected in series feeder ear in the electric current of 8 drive tests examination circuit.
During use:
Two ends at transmitter connect test lead,
If the test voltage amount then earlier pushes voltage end one side switch terminals with change-over switch K, the anode with two test leads is connected to the signal anode then, and another test lead is connected to voltage end.
If measuring current amount, electric power thus supplied according to transmitter, earlier change-over switch K is pushed feeder ear or outer feeder ear one side of electric current in the electric current, the anode with two test leads is connected to the signal anode then, and another test lead is connected to feeder ear or the outer feeder ear of electric current in the electric current.
It is same as the prior art that the utility model is not stated part.
Claims (5)
1, turbine efficiency test unit, include acquisition module and transmitter, it is characterized in that, also include termination, termination includes voltage end, current terminal, resistance and signal anode, and lead picks out via the transmission ends of acquisition module, connect signal end, resistance, current terminal then in regular turn, the transmitter two ends have two test leads, and wherein one connects signal end, and another root connects current terminal or voltage end.
2, turbine efficiency test unit according to claim 1, it is characterized in that termination also includes a kind of change-over switch, it switches being connected of earth terminal of common ends and acquisition module, end in the two switch free ends is connected with voltage end, and the other end then is connected with current terminal.
3, turbine efficiency test unit according to claim 1 is characterized in that, termination also includes a built-in power module, and current terminal includes feeder ear and the outer feeder ear of electric current in the electric current, and feeder ear is connected in series with the built-in power module in the electric current.
4, turbine efficiency test unit according to claim 1 is characterized in that, the built-in power module is that a kind of specification is the power module of DC24V.
5, turbine efficiency test unit according to claim 1 is characterized in that, it is the acquisition module of 4711A that acquisition module adopts the model of grinding the production of magnificent company.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920137242XU CN201425604Y (en) | 2009-03-25 | 2009-03-25 | Turbine efficiency testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920137242XU CN201425604Y (en) | 2009-03-25 | 2009-03-25 | Turbine efficiency testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201425604Y true CN201425604Y (en) | 2010-03-17 |
Family
ID=42025056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920137242XU Expired - Fee Related CN201425604Y (en) | 2009-03-25 | 2009-03-25 | Turbine efficiency testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201425604Y (en) |
-
2009
- 2009-03-25 CN CN200920137242XU patent/CN201425604Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101216515B (en) | Powerline pole tower ground resistance measurement method and its tester | |
| CN101887085B (en) | Zinc oxide arrester DC characteristic testing device and method | |
| CN106970345A (en) | Portable type current transformer secondary connection polarity test device | |
| CN104569846B (en) | A kind of single battery test system | |
| CN108562791A (en) | A kind of data acquisition device | |
| CN206594284U (en) | Portable type current transformer secondary connection polarity test device | |
| CN101303386B (en) | Sensor device for detecting high voltage circuit electrical parameter | |
| CN208421063U (en) | A kind of data acquisition device | |
| CN201425604Y (en) | Turbine efficiency testing device | |
| CN203745556U (en) | Automatic testing device used for testing load capability of communication interface of intelligent electric energy meter | |
| CN202977898U (en) | Power socket capable of measuring power consumption | |
| CN206379761U (en) | The electric toothbrush wireless charging device that a kind of utilization USB charger is powered | |
| CN201955392U (en) | Massive quantity power supply system for electric energy metering | |
| CN201615920U (en) | Alternating current milliammeter | |
| CN103151655A (en) | Extension socket with power parameter monitoring function | |
| CN213424813U (en) | Wiring-free remote transmission high-voltage current transformer | |
| CN108957115A (en) | The miniature bluetooth observing and controlling relay integrated device of portable debugging | |
| CN204228927U (en) | The multimode lithium battery group charging and discharging currents detection system in parallel of wireless telecommunications | |
| CN201298754Y (en) | Integral 10kv carrier communication intelligent switch | |
| CN211123000U (en) | Wireless measurement ammeter | |
| CN204086445U (en) | A kind of wire breakage detection device for cables | |
| CN206804734U (en) | A kind of earth resistance tester | |
| CN208953613U (en) | The miniature bluetooth observing and controlling relay integrated device of portable debugging | |
| CN203310897U (en) | Portable transformer neutral point direct current measuring instrument having wireless transmission function | |
| CN201917627U (en) | Portable direct-current grounding fault searching instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100317 Termination date: 20160325 |