CN110470930A - The hand-held reaying protection test instrument of low cost - Google Patents
The hand-held reaying protection test instrument of low cost Download PDFInfo
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- CN110470930A CN110470930A CN201910724310.0A CN201910724310A CN110470930A CN 110470930 A CN110470930 A CN 110470930A CN 201910724310 A CN201910724310 A CN 201910724310A CN 110470930 A CN110470930 A CN 110470930A
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- output module
- voltage output
- voltage
- shell
- current output
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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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
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Abstract
The invention discloses the hand-held reaying protection test instrument of low cost, are related to electric power detection device technical field；It include shell (1), setting LCD display (2) on shell (1) of shell (1) internal battery, voltage output module and current output module, setting, switch (3), U I switching push button (4), voltage output interface (5), current output interface (6) and amplitude adjusting knob (7), the U I switching push button (4) switching electric current or voltage output are electrically connected and controlled with voltage output module and current output module respectively；Its by shell, battery, voltage output module, current output module, LCD display, switch, U I switching push button, voltage output interface, current output interface and amplitude adjusting knob etc., it is easy to carry, at low cost to realize reaying protection test instrument.
Description
Technical field
The present invention relates to electric power detection device technical field more particularly to a kind of hand-held reaying protection test instrument of low cost.
Background technique
In existing traditional substation, using relay protection profession as the secondary profession of representative, it is required to relatively stable electricity
Pressure and electric current output are to verify relevant device.It especially is very and traditional reaying protection test instrument with relay protection profession
Severe one jin up to a hundred, less serious case also have 30 kilogram weights.Inconvenient to carry in routine work, the unplanned work that must be used, relay is protected
Shield staff will not carry tester and show up.And during routine work, for catastrophic failure, it is often necessary to unplannedlyly pair
Relay protection device is verified, for carrying out the sample examination of protective device；Whether the polarity no-load voltage ratio of current loop is correct, quasi-
The work such as true and confirmation.
Since original reaying protection test instrument is inconvenient to carry, the limitation reasons such as at high cost.It is frequently necessary to relay protection work
After personnel carry out early-period confirmation, scene is gone by subsequent personnel carrying instrument again and is tested, unnecessary long-time is caused
Have a power failure and manpower wastes.There is an urgent need to a kind of portable, the inexpensive relay protection that can be put into carry-on tool tries relay protection profession at present
Test instrument.
Prior art problem and thinking:
How reaying protection test instrument inconvenient to carry, at high cost technical problem is solved.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of hand-held reaying protection test instrument of low cost, pass through shell
Body, battery, voltage output module, current output module, LCD display, switch, U I switching push button, voltage output interface, electricity
Output interface and amplitude adjusting knob etc. are flowed, it is easy to carry, at low cost to realize reaying protection test instrument.
In order to solve the above technical problems, the technical solution used in the present invention is: including shell, being arranged inside housings
Battery, voltage output module and current output module, the LCD display being arranged on shell, switch, U I switching push button, voltage
Output interface, current output interface and amplitude adjusting knob, the battery respectively with voltage output module, current output module and
LCD display is connected and is powered, and the LCD display is electrically connected and shows with voltage output module and current output module respectively
Voltage or current information, the switch are connected on the power supply line of battery and control power supply or power-off, the U I switching push button
Switching electric current or voltage output, the voltage output mould are electrically connected and controlled with voltage output module and current output module respectively
Block is electrically connected with voltage output interface, and the current output module is connect with current output interface, the amplitude adjusting knob point
The output valve of voltage or current is not electrically connected and controlled with voltage output module and current output module.
A further technical solution lies in: the shell is rubber shell.
A further technical solution lies in: the battery is 9V battery.
A further technical solution lies in: the LCD display is the LCD number for amounting to four figures using 2 significant digits
It is aobvious.
A further technical solution lies in: the switch is the on & off switch opened or closed for Control experiment instrument and setting is in shell
Above the right side of body；The U I switching push button be button for switching electric current, voltage output.
A further technical solution lies in: the U I switching push button be for pressing for voltage output, pop-up be that electric current is defeated
Button out.
A further technical solution lies in: the voltage output module is auto-transformer.
A further technical solution lies in: the current output module is with cored rheology device.
A further technical solution lies in: lock is provided on shell.
A further technical solution lies in: sucker is provided on shell.
The beneficial effects of adopting the technical scheme are that
Its by shell, battery, voltage output module, current output module, LCD display, switch, U I switching push button, voltage
Output interface, current output interface and amplitude adjusting knob etc., it is easy to carry, at low cost to realize reaying protection test instrument.
It is detailed in specific embodiment part description.
Detailed description of the invention
Fig. 1 is structure chart of the invention；
Fig. 2 is usage state diagram of the invention.
Wherein: 1 shell, 2LCD display, 3 switch, 4U I switching push button, 5 voltage output interfaces, 6 current output interfaces,
7 amplitude adjusting knobs, 8 test wires.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the application and its application or making
Any restrictions.Based on the embodiment in the application, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall in the protection scope of this application.
Many details are explained in the following description in order to fully understand the application, but the application can be with
Implemented using other than the one described here other way, those skilled in the art can be without prejudice to the application intension
In the case of do similar popularization, therefore the application is not limited by the specific embodiments disclosed below.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
Up to the unlimited scope of the present application processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation
A part of book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label
Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached
It does not need that it is further discussed in figure.
In the description of the present application, it is to be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally, vertical,
Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System is merely for convenience of description the application and simplifies description, and in the absence of explanation to the contrary, these nouns of locality do not indicate that
It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage
Solution is the limitation to the application protection scope；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
Apply for the limitation of protection scope.
Embodiment 1:
As shown in Figure 1, the invention discloses a kind of hand-held reaying protection test instrument of low cost, including shell 1, it is fixed on shell 1
Internal battery, voltage output module and current output module, the LCD display 2 being fixed on shell 1, switch 3, U I switch
Button 4, voltage output interface 5, current output interface 6 and amplitude adjusting knob 7, the battery respectively with voltage output module,
Current output module and LCD display 2 are connected and are powered, and the LCD display 2 is exported with voltage output module and electric current respectively
Module is electrically connected and shows that voltage or current information, the switch 3 are connected on the power supply line of battery and control power supply or disconnected
Electricity, the U I switching push button 4 switching electric current or voltage are electrically connected and controlled with voltage output module and current output module respectively
Output, the voltage output module are electrically connected with voltage output interface 5, and the current output module and current output interface 6 connect
It connects, the amplitude adjusting knob 7 is electrically connected with voltage output module and current output module respectively and controls voltage or current
Output valve.
Wherein, details are not described herein as the prior art for voltage output module, current output module and LCD display sheet.
Embodiment 2:
As shown in Figure 1, the invention discloses a kind of hand-held reaying protection test instrument of low cost, including shell 1, it is fixed on shell 1
Internal battery, voltage output module and current output module, the LCD display 2 being fixed on shell 1, switch 3, U I switch
Button 4, voltage output interface 5, current output interface 6 and amplitude adjusting knob 7, the battery respectively with voltage output module,
Current output module and LCD display 2 are connected and are powered, and the LCD display 2 is exported with voltage output module and electric current respectively
Module is electrically connected and shows that voltage or current information, the switch 3 are connected on the power supply line of battery and control power supply or disconnected
Electricity, the U I switching push button 4 switching electric current or voltage are electrically connected and controlled with voltage output module and current output module respectively
Output, the voltage output module are electrically connected with voltage output interface 5, and the current output module and current output interface 6 connect
It connects, the amplitude adjusting knob 7 is electrically connected with voltage output module and current output module respectively and controls voltage or current
Output valve.
The shell 1 is rubber shell.
Wherein, details are not described herein as the prior art for voltage output module, current output module and LCD display sheet.
Embodiment 3:
As shown in Figure 1, the invention discloses a kind of hand-held reaying protection test instrument of low cost, including shell 1, it is fixed on shell 1
Internal battery, voltage output module and current output module, the LCD display 2 being fixed on shell 1, switch 3, U I switch
Button 4, voltage output interface 5, current output interface 6 and amplitude adjusting knob 7, the battery respectively with voltage output module,
Current output module and LCD display 2 are connected and are powered, and the LCD display 2 is exported with voltage output module and electric current respectively
Module is electrically connected and shows that voltage or current information, the switch 3 are connected on the power supply line of battery and control power supply or disconnected
Electricity, the U I switching push button 4 switching electric current or voltage are electrically connected and controlled with voltage output module and current output module respectively
Output, the voltage output module are electrically connected with voltage output interface 5, and the current output module and current output interface 6 connect
It connects, the amplitude adjusting knob 7 is electrically connected with voltage output module and current output module respectively and controls voltage or current
Output valve.
The shell 1 is rubber shell.
The battery is 9V battery.
Wherein, details are not described herein as the prior art for voltage output module, current output module and LCD display sheet.
Embodiment 4:
As shown in Figure 1, the invention discloses a kind of hand-held reaying protection test instrument of low cost, including shell 1, it is fixed on shell 1
Internal battery, voltage output module and current output module, the LCD display 2 being fixed on shell 1, switch 3, U I switch
Button 4, voltage output interface 5, current output interface 6 and amplitude adjusting knob 7, the battery respectively with voltage output module,
Current output module and LCD display 2 are connected and are powered, and the LCD display 2 is exported with voltage output module and electric current respectively
Module is electrically connected and shows that voltage or current information, the switch 3 are connected on the power supply line of battery and control power supply or disconnected
Electricity, the U I switching push button 4 switching electric current or voltage are electrically connected and controlled with voltage output module and current output module respectively
Output, the voltage output module are electrically connected with voltage output interface 5, and the current output module and current output interface 6 connect
It connects, the amplitude adjusting knob 7 is electrically connected with voltage output module and current output module respectively and controls voltage or current
Output valve.
The shell 1 is rubber shell.
The battery is 9V battery.
The LCD display 2 is the LCD digital display for amounting to four figures using 2 significant digits.
Wherein, details are not described herein as the prior art for voltage output module, current output module and LCD digital display sheet.
Embodiment 5:
As shown in Figure 1, the invention discloses a kind of hand-held reaying protection test instrument of low cost, including shell 1, it is fixed on shell 1
Internal battery, voltage output module and current output module, the LCD display 2 being fixed on shell 1, switch 3, U I switch
Button 4, voltage output interface 5, current output interface 6 and amplitude adjusting knob 7, the battery respectively with voltage output module,
Current output module and LCD display 2 are connected and are powered, and the LCD display 2 is exported with voltage output module and electric current respectively
Module is electrically connected and shows that voltage or current information, the switch 3 are connected on the power supply line of battery and control power supply or disconnected
Electricity, the U I switching push button 4 switching electric current or voltage are electrically connected and controlled with voltage output module and current output module respectively
Output, the voltage output module are electrically connected with voltage output interface 5, and the current output module and current output interface 6 connect
It connects, the amplitude adjusting knob 7 is electrically connected with voltage output module and current output module respectively and controls voltage or current
Output valve.
The shell 1 is rubber shell.
The battery is 9V battery.
The LCD display 2 is the LCD digital display for amounting to four figures using 2 significant digits.
The switch 3 is above the on & off switch opened or closed for Control experiment instrument and the right side for being fixed on shell 1；The U
I switching push button 4 is the button for switching electric current, voltage output.
Wherein, details are not described herein as the prior art for voltage output module, current output module and LCD digital display sheet.
Embodiment 6:
As shown in Figure 1, the invention discloses a kind of hand-held reaying protection test instrument of low cost, including shell 1, it is fixed on shell 1
Internal battery, voltage output module and current output module, the LCD display 2 being fixed on shell 1, switch 3, U I switch
Button 4, voltage output interface 5, current output interface 6 and amplitude adjusting knob 7, the battery respectively with voltage output module,
Current output module and LCD display 2 are connected and are powered, and the LCD display 2 is exported with voltage output module and electric current respectively
Module is electrically connected and shows that voltage or current information, the switch 3 are connected on the power supply line of battery and control power supply or disconnected
Electricity, the U I switching push button 4 switching electric current or voltage are electrically connected and controlled with voltage output module and current output module respectively
Output, the voltage output module are electrically connected with voltage output interface 5, and the current output module and current output interface 6 connect
It connects, the amplitude adjusting knob 7 is electrically connected with voltage output module and current output module respectively and controls voltage or current
Output valve.
The shell 1 is rubber shell.
The battery is 9V battery.
The LCD display 2 is the LCD digital display for amounting to four figures using 2 significant digits.
The switch 3 is above the on & off switch opened or closed for Control experiment instrument and the right side for being fixed on shell 1；The U
I switching push button 4 is the button for switching electric current, voltage output.
The U I switching push button 4 be for press for voltage output, pop-up be electric current output button.
Wherein, details are not described herein as the prior art for voltage output module, current output module and LCD digital display sheet.
Embodiment 7:
As shown in Figure 1, the invention discloses a kind of hand-held reaying protection test instrument of low cost, including shell 1, it is fixed on shell 1
Internal battery, voltage output module and current output module, the LCD display 2 being fixed on shell 1, switch 3, U I switch
Button 4, voltage output interface 5, current output interface 6 and amplitude adjusting knob 7, the battery respectively with voltage output module,
Current output module and LCD display 2 are connected and are powered, and the LCD display 2 is exported with voltage output module and electric current respectively
Module is electrically connected and shows that voltage or current information, the switch 3 are connected on the power supply line of battery and control power supply or disconnected
Electricity, the U I switching push button 4 switching electric current or voltage are electrically connected and controlled with voltage output module and current output module respectively
Output, the voltage output module are electrically connected with voltage output interface 5, and the current output module and current output interface 6 connect
It connects, the amplitude adjusting knob 7 is electrically connected with voltage output module and current output module respectively and controls voltage or current
Output valve.
The shell 1 is rubber shell.
The battery is 9V battery.
The LCD display 2 is the LCD digital display for amounting to four figures using 2 significant digits.
The switch 3 is above the on & off switch opened or closed for Control experiment instrument and the right side for being fixed on shell 1；The U
I switching push button 4 is the button for switching electric current, voltage output.
The U I switching push button 4 be for press for voltage output, pop-up be electric current output button.
The voltage output module is auto-transformer.
Wherein, auto-transformer, current output module and LCD digital display itself and accordingly electric connection technology be existing skill
Details are not described herein for art.
Embodiment 8:
As shown in Figure 1, the invention discloses a kind of hand-held reaying protection test instrument of low cost, including shell 1, it is fixed on shell 1
Internal battery, voltage output module and current output module, the LCD display 2 being fixed on shell 1, switch 3, U I switch
Button 4, voltage output interface 5, current output interface 6 and amplitude adjusting knob 7, the battery respectively with voltage output module,
Current output module and LCD display 2 are connected and are powered, and the LCD display 2 is exported with voltage output module and electric current respectively
Module is electrically connected and shows that voltage or current information, the switch 3 are connected on the power supply line of battery and control power supply or disconnected
Electricity, the U I switching push button 4 switching electric current or voltage are electrically connected and controlled with voltage output module and current output module respectively
Output, the voltage output module are electrically connected with voltage output interface 5, and the current output module and current output interface 6 connect
It connects, the amplitude adjusting knob 7 is electrically connected with voltage output module and current output module respectively and controls voltage or current
Output valve.
The shell 1 is rubber shell.
The battery is 9V battery.
The LCD display 2 is the LCD digital display for amounting to four figures using 2 significant digits.
The switch 3 is above the on & off switch opened or closed for Control experiment instrument and the right side for being fixed on shell 1；The U
I switching push button 4 is the button for switching electric current, voltage output.
The U I switching push button 4 be for press for voltage output, pop-up be electric current output button.
The voltage output module is auto-transformer.
The current output module is with cored rheology device.
Wherein, auto-transformer, rheology device and LCD digital display itself and accordingly electric connection technology be the prior art herein
It repeats no more.
Embodiment 9:
As shown in Figure 1, the invention discloses a kind of hand-held reaying protection test instrument of low cost, including shell 1, it is fixed on shell 1
Internal battery, voltage output module and current output module, the LCD display 2 being fixed on shell 1, switch 3, U I switch
Button 4, voltage output interface 5, current output interface 6 and amplitude adjusting knob 7, the battery respectively with voltage output module,
Current output module and LCD display 2 are connected and are powered, and the LCD display 2 is exported with voltage output module and electric current respectively
Module is electrically connected and shows that voltage or current information, the switch 3 are connected on the power supply line of battery and control power supply or disconnected
Electricity, the U I switching push button 4 switching electric current or voltage are electrically connected and controlled with voltage output module and current output module respectively
Output, the voltage output module are electrically connected with voltage output interface 5, and the current output module and current output interface 6 connect
It connects, the amplitude adjusting knob 7 is electrically connected with voltage output module and current output module respectively and controls voltage or current
Output valve.
The shell 1 is rubber shell.
The battery is 9V battery.
The LCD display 2 is the LCD digital display for amounting to four figures using 2 significant digits.
The switch 3 is above the on & off switch opened or closed for Control experiment instrument and the right side for being fixed on shell 1；The U
I switching push button 4 is the button for switching electric current, voltage output.
The U I switching push button 4 be for press for voltage output, pop-up be electric current output button.
The voltage output module is auto-transformer.
The current output module is with cored rheology device.
Lock is fixed on shell 1.
Wherein, auto-transformer, rheology device and LCD digital display itself and accordingly electric connection technology be the prior art herein
It repeats no more.
Embodiment 10:
As shown in Figure 1, the invention discloses a kind of hand-held reaying protection test instrument of low cost, including shell 1, it is fixed on shell 1
Internal battery, voltage output module and current output module, the LCD display 2 being fixed on shell 1, switch 3, U I switch
Button 4, voltage output interface 5, current output interface 6 and amplitude adjusting knob 7, the battery respectively with voltage output module,
Current output module and LCD display 2 are connected and are powered, and the LCD display 2 is exported with voltage output module and electric current respectively
Module is electrically connected and shows that voltage or current information, the switch 3 are connected on the power supply line of battery and control power supply or disconnected
Electricity, the U I switching push button 4 switching electric current or voltage are electrically connected and controlled with voltage output module and current output module respectively
Output, the voltage output module are electrically connected with voltage output interface 5, and the current output module and current output interface 6 connect
It connects, the amplitude adjusting knob 7 is electrically connected with voltage output module and current output module respectively and controls voltage or current
Output valve.
The shell 1 is rubber shell.
The battery is 9V battery.
The LCD display 2 is the LCD digital display for amounting to four figures using 2 significant digits.
The switch 3 is above the on & off switch opened or closed for Control experiment instrument and the right side for being fixed on shell 1；The U
I switching push button 4 is the button for switching electric current, voltage output.
The U I switching push button 4 be for press for voltage output, pop-up be electric current output button.
The voltage output module is auto-transformer.
The current output module is with cored rheology device.
Sucker is fixed on shell 1.
Wherein, auto-transformer, rheology device and LCD digital display itself and accordingly electric connection technology be the prior art herein
It repeats no more.
Relative to above-described embodiment, the sucker is vacuum chuck or magnechuck.
Present invention design:
Its by shell, battery, voltage output module, current output module, LCD display, switch, U I switching push button, voltage
Output interface, current output interface and amplitude adjusting knob etc., it is easy to carry, at low cost to realize reaying protection test instrument.
Technical contribution:
The purpose of the application is according to the actual needs of secondary device Overhaul site, and the stable electricity of 0A to 8A can be exported by providing one kind
Stream and 0V can be used for urgent protective relaying device test and secondary returning to the low-cost test instrument of 20V burning voltage
Road checks.
The instrument is powered by conventional 9V battery, provides three-phase output voltage AC 0V~20V and single-phase output electric current AC
0A~8A.The size long a height of 25CM*10CM*5CM of * wide *, designing quality 800g.
As shown in Figure 1, the hand-held reaying protection test instrument of low cost is made of seven parts:
First part: apparatus casing and battery
Equipment is integrally protected using light rubber shell, commonly use 9V battery maintain equipment power supply, guarantee it is portable after
The convenience protecting the shockproof effect of instrument and using.
Second part: LCD display
Amount to the LCD digital display of four figures using 2 significant digits, guarantee the precision of output voltage, electric current, numerical value is collected in electricity
Pressure, current output module.
Part III: switch and U I switching push button
It is placed in top on the right side of device, is on & off switch, controls the switch of instrument；Secondly for U I switching push button, for switching electric current,
The output of voltage, pressing as voltage output, pop-up is electric current output.Using two sets of opening and closing contact travel switches, contact is gone here and there respectively
It is connected to the current supply circuit and amplitude adjusting knob of voltage output module and current output module.
Part IV: voltage output module
Using automatic coupling voltage regulator by U I switching push button and power switch node, the power supply of direct-connected battery provided by adjusting knob
The test voltage needed, two Wiring ports of output module setting "+,-".
Part V: current output module
Using high permeability iron core rheology device, by U I switching push button and power switch node, direct-connected battery power supply passes through tune
It saves knob and the test current needed, two Wiring ports of output module setting "+,-" is provided.
Part VI: amplitude adjusting knob；
U I switching push button when pressing, automatic coupling voltage regulator is controlled by rotation knob to adjust and test electricity to voltage output module
Pressure；
U the pop-up of I switching push button when, to control rheology device to adjust give current output module test current by rotation knob；
Part VII: test wire
This instrument uses general-purpose interface, and routine test test wire or pen meter of universal meter can be used.
Operation instruction:
As shown in Fig. 2, simulating the instrument to the implementation method of protective relaying device monophase current sampling verification:
1, before opening power knob, first amplitude adjusting knob is adjusted at 0 scale.
2, test wire 8 is connected to respectively by polarity at the "+" "-" port of the instrument current output module.
3, the switch 3 for opening control power supply, rotates clockwise amplitude adjusting knob 6.
4, electric current shown in LCD display 2 is checked, until the test bit needed, can carry out electricity to tested protective device
Stream sampling verification.
By lock the present apparatus can be suspended on or remove, carry, using more convenient.
On the side wall of the pillar or bracket that the present apparatus can be fixed in face of operator by sucker, use is more square
Just.
Claims (10)
1. a kind of hand-held reaying protection test instrument of low cost, it is characterised in that: internal in shell (1) including shell (1), setting
LCD display (2) on shell (1) of battery, voltage output module and current output module, setting, switch (3), U I switching
Button (4), voltage output interface (5), current output interface (6) and amplitude adjusting knob (7), the battery are defeated with voltage respectively
Module, current output module and LCD display (2) are connected and are powered out, the LCD display (2) respectively with voltage output mould
Block and current output module are electrically connected and show voltage or current information, and the switch (3) is connected on the power supply line of battery simultaneously
Control power supply or power-off, the U I switching push button (4) be electrically connected and control with voltage output module and current output module respectively
Switching electric current or voltage output processed, the voltage output module are electrically connected with voltage output interface (5), the current output module
It is connect with current output interface (6), the amplitude adjusting knob (7) is electrically connected with voltage output module and current output module respectively
Connect and control the output valve of voltage or current.
2. the hand-held reaying protection test instrument of low cost according to claim 1, it is characterised in that: the shell (1) is rubber
Rubber shell body.
3. the hand-held reaying protection test instrument of low cost according to claim 1, it is characterised in that: the battery is 9V electricity
Pond.
4. the hand-held reaying protection test instrument of low cost according to claim 1, it is characterised in that: the LCD display (2)
For the LCD digital display for amounting to four figures using 2 significant digits.
5. the hand-held reaying protection test instrument of low cost according to claim 1, it is characterised in that: the switch (3) is to use
In Control experiment instrument on or off on & off switch and be arranged above the right side of shell (1)；The U I switching push button (4) be for
The button of switching electric current, voltage output.
6. the hand-held reaying protection test instrument of low cost according to claim 5, it is characterised in that: the U I switching push button
(4) for for pressing as voltage output, the button that pop-up is electric current output.
7. the hand-held reaying protection test instrument of low cost according to claim 1, it is characterised in that: the voltage output module
For auto-transformer.
8. the hand-held reaying protection test instrument of low cost according to claim 1, it is characterised in that: the current output module
For with cored rheology device.
9. the hand-held reaying protection test instrument of low cost according to claim 1, it is characterised in that: be arranged on shell (1)
There is lock.
10. low cost described according to claim 1~any one of 9 holds reaying protection test instrument, it is characterised in that: In
Shell is provided with sucker on (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910724310.0A CN110470930A (en) | 2019-08-07 | 2019-08-07 | The hand-held reaying protection test instrument of low cost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN111025054A (en) * | 2019-12-03 | 2020-04-17 | 天津送变电工程有限公司 | Multifunctional wireless relay protection debugging auxiliary instrument |
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