CN209690467U - A kind of actuating range experiment test device of control and protective switching device - Google Patents
A kind of actuating range experiment test device of control and protective switching device Download PDFInfo
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- CN209690467U CN209690467U CN201920282710.6U CN201920282710U CN209690467U CN 209690467 U CN209690467 U CN 209690467U CN 201920282710 U CN201920282710 U CN 201920282710U CN 209690467 U CN209690467 U CN 209690467U
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Abstract
The utility model relates to electric test technical fields, particularly disclose a kind of actuating range experiment test device of control and protective switching device.The device includes single chip control module, it is characterized by: the single chip control module is connected in parallel voltage module, current module I and current module II, the output port of single chip control module is connected in parallel voltmeter, ammeter I, ammeter II, timer, electric voltage regulator, gross adjustment currents source I, fine tuning current source I, gross adjustment currents source II and fine tuning current source II；Power supply II is through conductor in parallel connection gross adjustment currents source I, fine tuning current source I, gross adjustment currents source II and fine tuning current source II.The utility model not only can be integrated by the performance of required test equipment, but also measuring accuracy can be improved, and can also realize test operation intelligence, overcome the problem that the prior art lacks the research to the actuating range experimental rig of control and protective switching device for the first time.
Description
Technical field
The utility model relates to electric test technical field, in particular to the movement model of a kind of control and protective switching device
Enclose experiment test device.
Background technique
Control and protective switching device is the research and development of China's the nineties, and the first generation low-voltage electrical apparatus to fill the domestic gaps is big
Class.As new major class product, the low-voltage controling appliances such as product integrated low-voltage breaker, contactor, electrothermal relay, the fuse
The advantages of with low-voltage variation electric appliance, have many advantages, such as integrated, modularization, miniaturization.National mark has been formulated for such product
It is quasi-: GB14048.9 " low voltage switch equipment and the control part equipment 6-2: multifunctional electric appliance (equipment) control and protective switch electricity
Device (equipment) (CPS) ".The effective national standard version of present is GB14048.9-2008, substitutes GB14048.9-1998,
Further improve the technical requirements of product.Actuating range is defined in the 9.4.1.3 clause of standard GB14048.9-2008
Test, the test are related to the verifying of the test to the under-voltage of control and protective switching device, over-voltage, overload, open-phase function.The examination
Testing has the characteristics that test parameter is more, test program is complicated.The test equipment that the test needs is more, and testing crew selection is different
Survey equipment be combined, come complete the test to above-mentioned different function verifying.It is authenticated in the test of above-mentioned different function
Cheng Zhong, repeats that selection, test result accuracy is low, tester's operative skill is affected etc. to test result and asks there are equipment
Topic.In view of the above-mentioned problems, needing to design the actuating range experimental rig of a kind of switch and protective switch electric appliance, realization sets test
Standby integrated, test result accuracy, test operation are intelligent, to avoid repeatability selection equipment, raising measuring accuracy, reduce
Dependence to tester's technical ability is a kind of method for solving this technical problem.
CN207504551U discloses a kind of current protecting circuit of control and protective switching device, it is characterized in that: including
Sequentially connected current transformer, operational amplifier, comparator and buckle releaser driving circuit, the current protecting circuit greatly improve
The movement speed of high current error protection, also reduces the cost of circuit design；CN206389101U discloses a kind of band mistake
The control and protective switching device (CPS) of under-voltage protection, including tripping module, voltage sampling module, control module and de-
Drive module is detained, may be implemented when main circuit is in over-voltage or under-voltage state, by main circuit disjunction；CN206389103U
A kind of control and protective switching device (CPS) with phase sequence, including tripping module and phase sequence module are disclosed,
It may be implemented when main circuit is in the state of phase shortage or random phase, phase sequence module disjunction main circuit；CN204270050U
A kind of intelligent controller of control and protective switching device, including display module, control panel and secondary power supply module are disclosed, is solved
There is troubleshooting difficulty under failure off-position in control and protective switching device of having determined；CN104777769A discloses one
The central control device of kind control and protective switching device, including governor circuit module, signal sampling module, keyboard operation mould
The concentrated controling management work of control and protective switching device may be implemented in block, state indicator module, output control module；
CN205582746U discloses a kind of internal feedback device of control and protective switching device, comprising: which bracket, contact are supported
Part, stationary contact bracket group and shell, are fed back using associated mode, different from the lever construction generallyd use, are arranged in device for switching
Inside, it is intended that realize small size so that easy-to-connect reduces transmission link, while being directly associated with executing agency, increases
Add the reliability of transmitting signal；CN205230866U discloses a kind of auxiliary switch of control and protective switching device, including
Bottom case, cover board, connecting terminal, microswitch and slider, under the premise of guaranteeing stable connection, installation and removal are convenient,
It can be improved the efficiency of installation, maintenance；CN204116559U discloses a kind of short-circuit protection characteristic test device, including bottom stage,
First mechanism for testing, the second mechanism for testing, pushing mechanism and insulation division, by setting locating slot to control and protective switch electricity
The main circuit of device is fixed, by be arranged insulation division the outlet of main circuit is dielectrically separated from, solve because main circuit into
Line or outlet fixed unstable and the security risk of outlet push pushing block to keep the first test electric by setting solenoid valve and cylinder
Pressure side contradicts on the short-circuit protection characteristic test mouth of control and protective switching device, realizes semi-automation, facilitates test
Operation；CN204228915U discloses a kind of control and protective switching device device longevity experimental rig, including bottom plate, side
Plate upper mounted plate, positioning component, holds down assembly, the mechanism rotary components and control circuit board of control and protective switching device,
The function of recording mechanism service life number may be implemented.
Although above-mentioned technology is tested from current protection, overvoltage/undervoltage protection, phase sequence etc. with actuating range directly related
Aspect has carried out design studies to the ontology of control and protective switching device, from intelligent control, concentrated controling management etc. and movement
Range tests indirect related aspect and has carried out design studies to the ontology of control and protective switching device, fills from internal feedback
Set, auxiliary switch etc. studies the external auxiliary device of control and protective switching device, from short-circuit protection characteristic
Test device, device longevity experimental rig etc. study the test device of control and protective switching device；But
The test device for lacking a kind of actuating range test specifically for control and protective switching device, meets and tests actuating range
It needs multiple test parameters to be tested to measure, realizes the integrated, intelligent of test device, be provided simultaneously with high-precision.
Summary of the invention
The utility model in order to make up for the deficiencies of the prior art, provides that a kind of test operation is intelligently good, measuring accuracy is high
Control and protective switching device actuating range experiment test device.
The utility model is achieved by the following technical solution:
A kind of actuating range experiment test device of control and protective switching device, including single chip control module, monolithic
The working power input terminal of machine control module connects power supply I, feature through conductor in parallel with the power input of electric voltage regulator
Be: the input port of the single chip control module is connected in parallel output port, the current-mode of voltage module through conducting wire respectively
The output port of the output port of block I and the output port of current module II, single chip control module connects through conducting wire is in parallel respectively
Connect the input port, electronic of the input port of voltmeter, the input port of ammeter I, the input port of ammeter II, timer
The control of the control port of pressure regulator, the control port in gross adjustment currents source I, the control port, gross adjustment currents source II of fine tuning current source I
The control port of port processed and fine tuning current source II；Power supply of the input port of voltage module through conducting wire connection electric voltage regulator is defeated
Outlet, the input port of current module I is through the output port of conducting wire connection current transformer I, the input port of current module II
Output port through conducting wire connection current transformer II；Power supply II through conductor in parallel connection gross adjustment currents source I power input,
The power input of the power input of fine tuning current source I, the power input in gross adjustment currents source II and fine tuning current source II；Slightly
It includes I output terminal of L and N that the power output end of the power output end and fine tuning current source I of adjusting current source I is used as through conductor in parallel
I road current source of I output terminal, the power output end in gross adjustment currents source II and the power output end of fine tuning current source II are through conducting wire
Parallel connection is as the II road current source including II output terminal of II output terminal of L and N.
The utility model is targetedly applied to the actuating range test of control and protective switch, so that the test both can be with
It is the performance of required test equipment is integrated, and measuring accuracy can be improved, it can also realize test operation intelligence, for the first time gram
The problem that the prior art lacks the research to the actuating range experimental rig of control and protective switching device, the method for test are taken
The requirement of concerned countries standard and international standard is fully met with the precision of measurement result.
The more excellent technical solution of the utility model are as follows:
The electric voltage regulator power output end includes the sub- L/X of output voltage regulator and the sub- N/ of output voltage regulator in parallel
Y。
The power supply I is three-phase four-wire system AC power source, including A phase, B phase, C phase and N phase, wherein A phase is combined with B
Standard phase voltage be to exchange power input of the 380V as electric voltage regulator, the standard phase voltage that C phase and N are combined is exchanges
Power input of the 220V as single chip control module；Power supply II is that output voltage is alternating current 220V, capacity not less than 30kVA
Single phase poaer supply.
The single chip control module is separately connected voltage liter button, voltage drop button, electric current liter by functional circuit and presses
Button, electric current drop button, timing reset button and pause button, above-mentioned button are crawl non-self-lock-ing button；Single-chip microcontroller controls mould
The working power of block is alternating current 220V.
The voltmeter is the common A.C. voltmeter of indication range 0-500V, display precision three and half, ammeter I and electricity
The input source of flow table II be standard 0-5A, display maximum value be 1000A, and respectively with current transformer I and current transformer
II output source matches, and the maximum show value of adjusting ammeter I and ammeter II is respectively equal to current transformer I and electric current is mutual
The maximum value of sensor II；Counter is common timer, by the control of single chip control module, realizes that timing starts to stop with timing
Only, timing Protection Counter Functions is controlled by the timing reset button of single chip control module.
The voltage module input measurement maximum value realizes the isolation and biography of signal using photoelectric coupling technology for 500V
Sense, analog signal are inputted by the input port of voltage module, digital signal are converted by voltage module, then by voltage module
Output port output.
The range of regulation of electric voltage regulator is 0-500V, input power 380V；The voltage of electronic pressure regulation is adjusted by monolithic
Machine control module control voltage rise button and voltage drop button control, press single chip control module control voltage liter by
Button, voltage are gradually increased, and press the voltage drop button of single chip control module control, and voltage is gradually reduced, pressure regulation 0V to 500V
Need time 60s.
The input measurement maximum value of current module I and current module II is 5A；Using photoelectric coupling technology, signal is realized
Isolation and sensing, analog signal by current module input port input, be converted into digital signal by current module, then
It is exported by the output port of current module.
Current transformer I and current transformer II are common alternating current mutual inductor, current transformer I and current transformer
II primary side is air core coil, and control and protection electric appliance only limits a connecting wire when carrying out actuating range test from hollow
Side passes through, and the secondary side output electric current 0-5A of current transformer I and current transformer II is current transformer I and current transformer
II output source, the selected current transformer specification of the actuating range experiment test device of the control and protective switching device are
1000/5、500/5、250/5、100/5、50/5、25/5。
The gross adjustment currents source I and gross adjustment currents source II are single phase poaer supply input, and input supply voltage 220V is single-phase
Output voltage is up to 5V, and output electric current is up to 1000A, capacity 10kVA；Being adjusted to 5V to need the time from 0V is 10s；Slightly
Current source I and gross adjustment currents source II is adjusted to be controlled the adjusting for realizing output electric current by single chip control module；Export current regulation
When 95% electric current exported by gross adjustment currents source I.
The fine tuning current source I and fine tuning current source II are single phase poaer supply input, input supply voltage 220V, single-phase defeated
Voltage is up to 1V out, and output electric current is up to 10A, capacity 1kVA；Being adjusted to 1V to need the time from 0V is 10s；Fine tuning electricity
Stream source I and fine tuning current source II are controlled the adjusting for realizing output electric current by single chip control module, 5% when exporting current regulation
Electric current exported by fine tuning current source I.
Above-mentioned gross adjustment currents source I and fine tuning current source I combine in parallel as I road current source, gross adjustment currents source II and fine tuning
Current source II combines in parallel as II road current source；The precision of this combination output electric current is compared to the single essence for adjusting electric current
Degree will be done.
The actuating range experiment test device of above-mentioned control and protective switching device includes under-voltage, mistake according to test function
Pressure, overload, disconnected four Xiang Gongneng of phase, according to the difference of test function, test method is different, comprising the following steps:
The power supply I of the actuating range experiment test device of control and protective switching device is connected with power supply II first, is examined
It looks into voltmeter, ammeter I, ammeter II to show normally, starts actuating range experimental test；Provide control and protective switching device
Control voltage be Us, rated current I, electric voltage regulator test voltage be Ux, I road current source test electric current be I1X, II tunnel
It is I that current source, which tests electric current,2X；
The first step, under-voltage functional test successively include five contents of 1A, 1B, 1C, 1D, 1E:
1A. adjusts electric voltage regulator, and under 40 DEG C of environment temperatures, control and protective switching device installation is leaned forward 5 °, when
When Ux=85%Us, control and protective switching device can be reliably closed, and test number (TN) 20 times；
1B. adjusts electric voltage regulator, under Normal Environmental Temperature, by control and protective switching device normal mounting, when Ux=
When 35%Us, control and protective switching device cannot be reliably closed, and test number (TN) 3 times；
1C. adjusts electric voltage regulator, and under -5 DEG C of environment temperatures, control and protective switching device is installed 5 ° of hypsokinesis, when
Control and protective switching device is reliably closed when Ux=Us, and adjusting electric voltage regulator slowly reduces Ux, as Ux=(20%-75%) Us
When, control and protective switching device reliably can be converted to off-state by closed state, test number (TN) 5 times, automatically record
The voltage value of control and protective switching device disconnection moment；
1D. adjusts electric voltage regulator, under Normal Environmental Temperature, by control and protective switching device normal mounting, when Ux=
Control and protective switching device is reliably closed when Us, and adjusting electric voltage regulator slowly reduces Ux, drops to 0V from Us in 60s,
As Ux=(70%-35%) Us, control and protective switching device reliably can be converted to off-state by closed state, test
Number 1 time, automatically record the voltage value that control and protective switching device disconnects moment；
Second step, over-voltage functional test, including mono- content of 2A:
2A. adjusts electric voltage regulator, and under 40 DEG C of environment temperatures, control and protective switching device installation is leaned forward 5 °, when
When Ux=110%Us, control and protective switching device can be reliably closed, and test number (TN) 20 times；
Third step overloads functional test, successively includes two contents of 3A, 3B:
3A. control and protective switching device keeps working normally closed state, by the main electricity of control and protective switching device
Road is respectively connected in series, and provides electric current with I road current source；
By taking I=25A as an example: working as I1XWhen=1.05I, timer starts timing, is provided electric current 2 hours with I road current source, control
It keeps working normally closed state with protective switch electric appliance, is then gradually increased current regulation to I1XWhen=1.2I, within 2 hours
Control and protective switching device disconnects automatically, and timer automatically records the total time that is powered；
3B. control and protective switching device keeps working normally closed state, by the main electricity of control and protective switching device
Road is respectively connected in series, and provides electric current with I road current source；
By taking I=25A as an example: working as I1XWhen=1.0I, timer starts timing, is provided electric current 2 hours with I road current source, control
It keeps working normally closed state with protective switch electric appliance, is then gradually increased current regulation to I1XWhen=1.5I, within 4 minutes
Control and protective switching device disconnects automatically, and timer automatically records the total time that is powered；
4th step, open-phase function test, including mono- content of 4A:
4A. control and protective switching device keeps working normally closed state, by the main electricity of control and protective switching device
Road A phase and B, which are connected in series, provides electric current with I road current source, and II road current source of C Xiang Yong provides electric current；
By taking I=25A as an example: working as I1X=1.0I、I2XWhen=0.9I, timer starts timing, with I road current source and II road electric current
Source provides electric current 2 hours, and control and protective switching device keeps working normally closed state, then adjusts electric current to I1X=
1.15I、I2XWhen=0, control and protective switching device disconnects automatically within 2 hours, and timer automatically records the total time that is powered；
Compared with prior art, the beneficial effects of the utility model are as follows:
(1) the initiative actuating range experiment test device for devising a kind of control and protective switching device can incite somebody to action
The performance of required test equipment is integrated, avoids the repeatability that different parameters test selects identical equipment；
(2) multiple test parameters are realized for the first time to measure in the same platform, avoid setting for selection different accuracy
The standby increase for combining measurement error in testing, improves measuring accuracy, the method for measurement and the precision of measurement result are completely full
The requirement of sufficient concerned countries standard and international standard；
(3) it realizes that test operation is intelligent, reduces the dependence to tester's technical ability, different testers are practical according to this
The operating instruction of new device is tested, and identical result is obtained.
(4) for the first time to the adjusting of electric current using adjusted stepwise mode in parallel, gross adjustment currents source I (gross adjustment currents source II) is adjusted
The 95% of electric current is exported, then fine tuning current source I (fine tuning current source II) adjusts the 5% of output electric current, and this mode exports electric current
Precision it is high compared to the precision that single output mode adjusts electric current.
Detailed description of the invention
The utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the work flow diagram of the utility model；
Fig. 3 is the under-voltage and over-voltage functional test wiring diagram of the utility model；
Fig. 4 is the overload functional test wiring diagram of the utility model；
Fig. 5 is that the open-phase function of the utility model tests wiring diagram.
In figure, 1 power supply I, 2 single chip control modules, 3 voltmeters, 4 ammeters I, 5 ammeters II, 6 timers, 7 voltages
Module, 8 electric voltage regulators, 9 current modules I, 10 current transformers I, 11 current modules II, 12 current transformers II, 13 coarse adjustment
Current source I, 14 fine tuning current sources I, 15 gross adjustment currents sources II, 16 fine tuning current sources II, 17 power supplys II, 18 L, I output terminal, 19
I output terminal of N, 20 L, II output terminal, 21 N, II output terminal, the sub- L/X of 22 output voltage regulators, 23 output voltage regulators
N/Y, the electromagnetic coil of 24 control and protective switching devices, 25 self-locking function button switches, 26 control and protective switching devices
Main circuit, the A phase end of incoming cables of A. control and protective switching device, the B phase end of incoming cables of B. control and protective switching device, C. control
With the C phase end of incoming cables of protective switch electric appliance, the A phase leading-out terminal of a. control and protective switching device, b. control and protective switch electricity
The C phase leading-out terminal of the B phase leading-out terminal of device, c. control and protective switching device.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings of the specification.
The connection type of the actuating range experiment test device of the control and protective switching device of the utility model is: power supply
The power input of I 1 working power input terminals and electric voltage regulator 8 through conductor in parallel connection single chip control module 2；It is electronic
The power output end of pressure regulator 8, including the sub- L/X 22 of the output voltage regulator and sub- N/Y 23 of output voltage regulator；Single-chip microcontroller control
The input port of module 2 is connected in parallel the output port of voltage module 7, the output port of current module I 9, electricity through conducting wire respectively
The output port of flow module II 11, the output port of single chip control module 2 are connected in parallel the input of voltmeter 3 through conducting wire respectively
The control of port, the input port of ammeter I 4, the input port of ammeter II 5, the input port of timer 6, electric voltage regulator 8
Port processed, the control port in gross adjustment currents source I 13, the control port of fine tuning current source I 14, the control terminal in gross adjustment currents source II 15
The control port of mouth, fine tuning current source II 16；Power supply of the input port of voltage module 7 through conducting wire connection electric voltage regulator 8 is defeated
Outlet；Output port of the input port of current module I 9 through conducting wire connection current transformer I 10；The input of current module II 11
Output port of the port through conducting wire connection current transformer II 12；Power supply II 17 is through conductor in parallel connection gross adjustment currents source I 13
Power input, the power input of fine tuning current source I 14, the power input in gross adjustment currents source II 15, fine tuning current source II
16 power input；The power output end in gross adjustment currents source I 13 and the power output end of fine tuning current source I 14 are through conductor in parallel
As I road current source, I road current source includes I output terminal 19 of I output terminal 18 of L and N；The power supply in gross adjustment currents source II 15 is defeated
For the power output end of outlet and fine tuning current source II 16 through conductor in parallel as II road current source, II road current source includes L II defeated
II output terminal 21 of terminal 20 and N out.
Illustrate the working principle of utility model device:
Power supply I 1 is that single chip control module 2 and electric voltage regulator 8 provide working power；Electric voltage regulator 8 includes electronic
Output voltage regulator L/X 22 and electric voltage regulator output terminal N/Y 23, as the defeated of under-voltage function and over-voltage functional test
Enter end, connects the electromagnetic coil 24 of control and protective switching device；Voltage module 7, current module I 9, current module II 11 will be each
Digital signal input single chip control module 2 is converted into from collected analog signal；Single chip control module 2 is according to test function
The needs of energy export the signal of processing to voltmeter 3, ammeter I 4, ammeter II 5, timer 6, electric voltage regulator 8, coarse adjustment
Current source I 13, fine tuning current source I 14, gross adjustment currents source II 15, fine tuning current source II 16；Voltage module 7 acquires electric voltage regulator
Then 8 output voltages convert digital signal for analog signal and pass to single chip control module 2；The acquisition electricity of current module I 9
The output signal of current transformer I 10 converts digital signal for analog signal and passes to single chip control module 2；Current module
The output signal of II 11 acquisition current transformers II 12, converts digital signal for analog signal and passes to single chip control module
2；Power supply II 17 is as gross adjustment currents source I 13, the work of fine tuning current source I 14, gross adjustment currents source II 15, fine tuning current source II 16
Power supply；Gross adjustment currents source I 13, fine tuning current source I 14, gross adjustment currents source II 15, fine tuning current source II 16 output current regulation
It is controlled by single chip control module 2；Gross adjustment currents source I 13 is in parallel with fine tuning current source I 14 to be used as I road current source, I road current source
There are two output terminals, respectively I output terminal 19 of I output terminal 18 of L and N；Gross adjustment currents source II 15 and fine tuning current source II
16 is in parallel as II road current source, and there are two output terminals, respectively II output terminal 20 of L and II output end of N for II road current source
Son 21, as shown in Fig. 1.
The present embodiment work flow diagram shown in Fig. 2: the test function of the present embodiment includes under-voltage, over-voltage, overload, disconnected phase,
Corresponding test method is selected according to the difference of test function.
Specific description is: the control voltage of regulation control and protective switching device first is Us, rated current I, electricity
Dynamic pressure regulator test voltage is Ux, and it is I1x that I road current source, which tests electric current, and it is I2x that II road current source, which tests electric current,；Then according to
Following four step is successively tested；
The first step, under-voltage functional test successively include five contents of 1A, 1B, 1C, 1D, 1E:
1A. adjusts electric voltage regulator, and under 40 DEG C of environment temperatures, control and protective switching device installation is leaned forward 5 °, when
When Ux=85%Us, control and protective switching device can be reliably closed, and test number (TN) 20 times；
1B. adjusts electric voltage regulator, under Normal Environmental Temperature, by control and protective switching device normal mounting, when Ux=
When 35%Us, control and protective switching device cannot be reliably closed, and test number (TN) 3 times；
1C. adjusts electric voltage regulator, and under -5 DEG C of environment temperatures, control and protective switching device is installed 5 ° of hypsokinesis, when
Control and protective switching device is reliably closed when Ux=Us, and adjusting electric voltage regulator slowly reduces Ux, as Ux=(20%-75%) Us
When, control and protective switching device reliably can be converted to off-state by closed state, test number (TN) 5 times, automatically record
The voltage value of control and protective switching device disconnection moment；
1D. adjusts electric voltage regulator, under Normal Environmental Temperature, by control and protective switching device normal mounting, when Ux=
Control and protective switching device is reliably closed when Us, and adjusting electric voltage regulator slowly reduces Ux, drops to 0V from Us in 60s,
As Ux=(70%-35%) Us, control and protective switching device reliably can be converted to off-state by closed state, test
Number 1 time, automatically record the voltage value that control and protective switching device disconnects moment；
Second step, over-voltage functional test, including mono- content of 2A:
2A. adjusts electric voltage regulator, and under 40 DEG C of environment temperatures, control and protective switching device installation is leaned forward 5 °, when
When Ux=110%Us, control and protective switching device can be reliably closed, and test number (TN) 20 times；
Third step overloads functional test, successively includes two contents of 3A, 3B:
3A. control and protective switching device keeps working normally closed state, by the main electricity of control and protective switching device
Road is respectively connected in series, and provides electric current with I road current source；
By taking I=25A as an example: working as I1XWhen=1.05I, timer starts timing, is provided electric current 2 hours with I road current source, control
It keeps working normally closed state with protective switch electric appliance, is then gradually increased current regulation to I1XWhen=1.2I, within 2 hours
Control and protective switching device disconnects automatically, and timer automatically records the total time that is powered；
3B. control and protective switching device keeps working normally closed state, by the main electricity of control and protective switching device
Road is respectively connected in series, and provides electric current with I road current source；
By taking I=25A as an example: working as I1XWhen=1.0I, timer starts timing, is provided electric current 2 hours with I road current source, control
It keeps working normally closed state with protective switch electric appliance, is then gradually increased current regulation to I1XWhen=1.5I, within 4 minutes
Control and protective switching device disconnects automatically, and timer automatically records the total time that is powered；
4th step, open-phase function test, including mono- content of 4A:
4A. control and protective switching device keeps working normally closed state, by the main electricity of control and protective switching device
Road A phase and B, which are connected in series, provides electric current with I road current source, and II road current source of C Xiang Yong provides electric current；
By taking I=25A as an example: working as I1X=1.0I、I2XWhen=0.9I, timer starts timing, with I road current source and II road electric current
Source provides electric current 2 hours, and control and protective switching device keeps working normally closed state, then adjusts electric current to I1X=
1.15I、I2XWhen=0, control and protective switching device disconnects automatically within 2 hours, and timer automatically records the total time that is powered.
Fig. 3 is the under-voltage and over-voltage functional test wiring diagram of the present embodiment: work electricity of the power supply I 1 as electric voltage regulator 8
Source input, the sub- N/Y 23 of the output terminal L/X 22 and output voltage regulator of electric voltage regulator 8 with conducting wire be separately connected it is self-locking by
Two input terminals of button 25, the electromagnetic coil of two output terminals connection control and protective switching device of locking press button 25
24。
Illustrating is: when implementing above-described embodiment 1A, locking press button 25 is in an off state, when electric voltage regulator is surveyed
When trying voltage Ux=85%Us, testing crew is manually pressed by locking press button 25, and control and protective switch is converted to by off-state and is closed
Conjunction state；When implementing above-described embodiment 1B, locking press button 25 is in an off state, when electric voltage regulator test voltage Ux=35%
When Us, testing crew is manually pressed by locking press button 25, and control and protective switch remains off constant；When the above-mentioned implementation of implementation
When example 2A, locking press button 25 is in an off state, and as electric voltage regulator test voltage Ux=110%Us, testing crew is pressed manually
Lower locking press button 25, control and protective switch is converted to closed state by off-state；When implementing above-described embodiment 1C and 1D,
Locking press button 25 is in closed state always, and when the test is finished, locking press button 25 is in an off state.
Fig. 4 is the overload functional test wiring diagram of the present embodiment: gross adjustment currents source I 13 is in parallel with fine tuning current source I 14 to be made
For I road current source, there are two output terminals, respectively I output terminal 19 of I output terminal 18 of L and N for I road current source；Control and guarantor
The main circuit 26 of shield device for switching is connected in series, with conducting wire by the A of L I output terminal 18 and control and protective switching device
Phase end of incoming cables A connection, with conducting wire by the B phase of the A phase leading-out terminal a and control and protective switching device of control and protective switching device
Leading-out terminal b connection, with conducting wire by the C phase of the B phase end of incoming cables B of control and protective switching device and control and protective switching device into
The C phase leading-out terminal c of control and protective switching device is connect by line end C connection with conducting wire with I output terminal 19 of N.
Specific description is: the overload functional test of the present embodiment includes two parts content, first part's content: control with
Protective switch electric appliance keeps working normally closed state, and the main circuit of control and protective switching device is respectively connected in series, with I road electricity
Stream source provides electric current；By taking I=25A as an example: working as I1XWhen=1.05I, timer starts timing, and it is small to provide electric current 2 with I road current source
When, control and protective switching device keeps working normally closed state, is then gradually increased current regulation to I1XWhen=1.2I, 2 is small
When within control and protective switching device disconnect automatically, timer automatically record be powered total time；The second part: control with
Protective switch electric appliance keeps working normally closed state, and the main circuit of control and protective switching device is respectively connected in series, with I road electricity
Stream source provides electric current；By taking I=25A as an example: working as I1XWhen=1.0I, timer starts timing, is provided electric current 2 hours with I road current source,
Control and protective switching device keeps working normally closed state, is then gradually increased current regulation to I1XWhen=1.5I, 4 minutes
Within control and protective switching device disconnect automatically, timer automatically record be powered total time.
Fig. 5 is the open-phase function test wiring diagram of the present embodiment: gross adjustment currents source I 13 is in parallel with fine tuning current source I 14 to be made
For I road current source, there are two output terminals, respectively I output terminal 19 of I output terminal 18 of L and N for I road current source；It will with conducting wire
I output terminal 18 of L is connect with the A phase end of incoming cables A of control and protective switching device, with conducting wire by control and protective switching device
The B phase leading-out terminal b connection of A phase leading-out terminal a and control and protective switching device, with conducting wire by the B of control and protective switching device
Phase end of incoming cables B is connect with I output terminal 19 of N；Gross adjustment currents source II 15 is in parallel with fine tuning current source II 16 to be used as II road current source,
There are two output terminals, respectively II output terminal 21 of II output terminal 20 of L and N for II road current source；With conducting wire by II output end of L
Son 20 is connect with the C phase end of incoming cables C of control and protective switching device, is opened II output terminal 21 of N with control and protection with conducting wire
The C phase leading-out terminal c connection of powered-down device.
Specific description is: control and protective switching device keeps working normally closed state, by control and protective switch
The main circuit A phase and B of electric appliance, which are connected in series, provides electric current with I road current source, and II road current source of C Xiang Yong provides electric current；It is with I=25A
Example: work as I1X=1.0I、I2XWhen=0.9I, timer starts timing, is provided electric current 2 hours with I road current source and II road current source,
Control and protective switching device keeps working normally closed state, then adjusts electric current to I1X=1.15I、I2XWhen=0 2 hours with
Interior control and protective switching device disconnects automatically, and timer automatically records the total time that is powered.
Claims (7)
1. a kind of actuating range experiment test device of control and protective switching device, including single chip control module (2), monolithic
The working power input terminal of machine control module (2) connects power supply I through conductor in parallel with the power input of electric voltage regulator (8)
(1), it is characterised in that: the input port of the single chip control module (2) is connected in parallel voltage module (7) through conducting wire respectively
The output port of output port, the output port of current module I (9) and current module II (11), single chip control module (2)
Output port is connected in parallel the input port of voltmeter (3), the input port of ammeter I (4), ammeter II through conducting wire respectively
(5) control of the input port, the control port, gross adjustment currents source I (13) of electric voltage regulator (8) of input port, timer (6)
Port, the control port of fine tuning current source I (14), the control port in gross adjustment currents source II (15) and fine tuning current source II (16) processed
Control port；Power output end of the input port of voltage module (7) through conducting wire connection electric voltage regulator (8), current module I
(9) output port of the input port through conducting wire connection current transformer I (10), the input port of current module II (11) is through leading
Line connects the output port of current transformer II (12)；Electricity of the power supply II (17) through conductor in parallel connection gross adjustment currents source I (13)
Source input terminal, the power input of fine tuning current source I (14), the power input in gross adjustment currents source II (15) and fine tuning current source
The power input of II (16)；The power output end in gross adjustment currents source I (13) and the power output end warp of fine tuning current source I (14)
Conductor in parallel as the I road current source including I output terminal of L (18) and I output terminal of N (19), gross adjustment currents source II (15)
It includes II output terminal of L (20) and N that the power output end of power output end and fine tuning current source II (16) is used as through conductor in parallel
II road current source of II output terminal (21).
2. the actuating range experiment test device of control and protective switching device according to claim 1, it is characterised in that:
Electric voltage regulator (8) power output end includes the sub- L/X(22 of output voltage regulator in parallel) and the sub- N/Y of output voltage regulator
(23).
3. the actuating range experiment test device of control and protective switching device according to claim 1, it is characterised in that:
The power supply I (1) is three-phase four-wire system AC power source, including A phase, B phase, C phase and N phase, wherein the standard that A phase is combined with B
Phase voltage is the power input for exchanging 380V as electric voltage regulator, and the standard phase voltage that C phase and N are combined is alternating current 220V work
For the power input of single chip control module；Power supply II (17) is the list that output voltage is alternating current 220V, capacity is not less than 30kVA
Phase power supply.
4. the actuating range experiment test device of control and protective switching device according to claim 1, it is characterised in that:
The single chip control module (2) is separately connected voltage by functional circuit and rises button, voltage drop button, electric current liter button, electricity
Stream drop button, timing reset button and pause button, above-mentioned button are crawl non-self-lock-ing button.
5. the actuating range experiment test device of control and protective switching device according to claim 1, it is characterised in that:
The voltmeter (3) is the common A.C. voltmeter of indication range 0-500V, display precision three and half, ammeter I (4) and electric current
The input source of table II (5) is the 0-5A of standard, and display maximum value is 1000A, and mutual with current transformer I (10) and electric current respectively
The output source of sensor II (12) matches, and timer (6) is common timer.
6. the actuating range experiment test device of control and protective switching device according to claim 1, it is characterised in that:
Voltage module (7) the input measurement maximum value is 500V, and the range of regulation of electric voltage regulator (8) is 0-500V, current module I
(9) and the input measurement maximum value of current module II (11) is 5A；Current transformer I (10) and current transformer II (12) are
The primary side of common alternating current mutual inductor, current transformer I (10) and current transformer II (12) is air core coil, and electric current is mutual
It is current transformer I (10) and current transformer that the secondary side of sensor I (10) and current transformer II (12), which exports electric current 0-5A,
The output source of II (12).
7. the actuating range experiment test device of control and protective switching device according to claim 1, it is characterised in that:
The gross adjustment currents source I (13) and gross adjustment currents source II (15) are single phase poaer supply input, and input supply voltage 220V is single-phase
Output voltage is up to 5V, and output electric current is up to 1000A, capacity 10kVA；Being adjusted to 5V to need the time from 0V is 10s；Slightly
Current source I (13) and gross adjustment currents source II (15) is adjusted to be controlled the adjusting for realizing output electric current by single chip control module (2)；It is defeated
95% electric current is exported by gross adjustment currents source I (13) when current regulation out；The fine tuning current source I (14) and fine tuning current source II
(16) it being inputted for single phase poaer supply, input supply voltage 220V, single-phase output voltage is up to 1V, and output electric current is up to 10A,
Capacity is 1kVA；Being adjusted to 1V to need the time from 0V is 10s；Fine tuning current source I (14) and fine tuning current source II (16) are by monolithic
The adjusting of output electric current is realized in the control of machine control module (2), and 5% electric current is by fine tuning current source I (14) when exporting current regulation
Output；Gross adjustment currents source I (13) and fine tuning current source I (14) combination is in parallel is used as I road current source, gross adjustment currents source II (15) and
Fine tuning current source II (16) combination is in parallel to be used as II road current source.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920282710.6U CN209690467U (en) | 2019-03-06 | 2019-03-06 | A kind of actuating range experiment test device of control and protective switching device |
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|---|---|---|---|
| CN201920282710.6U CN209690467U (en) | 2019-03-06 | 2019-03-06 | A kind of actuating range experiment test device of control and protective switching device |
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| CN209690467U true CN209690467U (en) | 2019-11-26 |
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| CN201920282710.6U Expired - Fee Related CN209690467U (en) | 2019-03-06 | 2019-03-06 | A kind of actuating range experiment test device of control and protective switching device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696626A (en) * | 2019-03-06 | 2019-04-30 | 山东省产品质量检验研究院 | A kind of actuating range experiment test device of control and protective switching device and application |
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2019
- 2019-03-06 CN CN201920282710.6U patent/CN209690467U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696626A (en) * | 2019-03-06 | 2019-04-30 | 山东省产品质量检验研究院 | A kind of actuating range experiment test device of control and protective switching device and application |
| CN109696626B (en) * | 2019-03-06 | 2024-02-27 | 山东省产品质量检验研究院 | Action range test device for control and protection switch electric appliance and application |
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