CN207198249U - A kind of most long test system for allowing the dead electricity time of electrical equipment - Google Patents
A kind of most long test system for allowing the dead electricity time of electrical equipment Download PDFInfo
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- CN207198249U CN207198249U CN201720669037.2U CN201720669037U CN207198249U CN 207198249 U CN207198249 U CN 207198249U CN 201720669037 U CN201720669037 U CN 201720669037U CN 207198249 U CN207198249 U CN 207198249U
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Abstract
The utility model discloses a kind of most long test system for allowing the dead electricity time of electrical equipment.At present, the power supply interruption aptitude tests both at home and abroad to electrical equipment, which have no, refers to.The utility model includes a high-speed switch, and power supply is powered by the high-speed switch to electrical equipment；The opening time of the high-speed switch is automatic cumulative since some initial value, and the closing time between initial value, sigma-delta value and front and rear opening twice, which all uses, to be previously set；When initial value design is sufficiently small, if electrical equipment occurs restarting or abnormal in test process, then the last high-speed switch shut-in time is that the most long of electrical equipment allows the dead electricity time.The utility model simplifies whole test process, and only can be obtained by the most long of electrical equipment with a test process allows the dead electricity time, and test is easy, accurate and efficiency high；The test system designed according to test request, it is rational in infrastructure and stable and reliable in work.
Description
Technical field
The power supply interruption aptitude tests technical field of electrical equipment is the utility model is related to, specifically a kind of electricity consumption is set
The standby most long test system for allowing the dead electricity time.
Background technology
When moment dead electricity situation occurs in the process of running for electrical equipment, if this instant of time is short enough, then simultaneously
The normal operating condition of equipment will not be destroyed；Otherwise, equipment is necessarily caused to restart or exit normal operating condition.Each equipment
Have it is one most long allow the dead electricity time, with the time span come cutting capacity between the power supply of weighing device, allow the dead electricity time to get over
Long, cutting capacity is stronger between power supply.Important electrical equipment typically uses Redundancy power supply, it is necessary to be equipped with power transfer device,
The switching time of switching device must be shorter than the most long of electrical equipment and allow the dead electricity time, and otherwise redundant power supply does not just reach expection
Effect.So to be reasonably equipped with power transfer device, cutting capacity the power supply of electrical equipment should just be tested.
At present, the power supply interruption aptitude tests both at home and abroad to electrical equipment, which have no, refers to.Common relay-protection tester
The dead electricity of some period in power supply process can be set, the purpose of test is：The dead electricity of some time span can or can not cause
Electrical equipment restart or it is abnormal, but this time span is not necessarily and most long allows the dead electricity time.
Equipment is most long to allow dead electricity time value in order to obtain, if being used as test work by the use of common relay-protection tester
Tool, then once typical test process is as follows：
1. first relay-protection tester is connected with electrical equipment, electrical equipment is supplied by relay-protection tester
Electricity；
2. the dead electricity time is set；
3. starting dead electricity process, check appearance exception is restarted or run to electrical equipment whether.
If in above test process, electrical equipment still can normal operation, illustrating that set time interval is less than should
Equipment is most long to allow the dead electricity time, and the interval that gets time extension is tested again, until equipment is restarted or is occurred abnormal, then
Previous test value, which is substantially exactly that the equipment is most long, allows the dead electricity time.
If in above test process, exception is restarted or occurred to electrical equipment, illustrate that set time interval is big
The dead electricity time is allowed in the equipment is most long, can be reduced time interval and be tested again, until equipment is not restarted or is occurred different
Often, then current test value, which is substantially exactly that the equipment is most long, allows the dead electricity time.
It can be seen that in order to obtain the most long permission dead electricity time value of electrical equipment, the survey of multiple or even up to a hundred time is just had to pass through
Examination, test process are very troublesome；If the setting of dead electricity time is unreasonable, causes the multiple start and stop of electrical equipment and influence electrical equipment
Service life.
Utility model content
Technical problem to be solved in the utility model is the defects of overcoming above-mentioned prior art to exist, there is provided a kind of electricity consumption
The most long test system for allowing the dead electricity time of equipment, it can be obtained by the most long of electrical equipment with a test process and allows
The dead electricity time.
Therefore, the utility model adopts the following technical scheme that：A kind of most long test for allowing the dead electricity time of electrical equipment
System, including tester, described tester include a high-speed switch, and power supply is supplied electrical equipment by the high-speed switch
Electricity；
The opening time of the high-speed switch is automatic cumulative since some initial value, initial value, sigma-delta value and front and rear
Closing time between opening twice, which all uses, to be previously set；When initial value design is sufficiently small, if electricity consumption is set in test process
Standby occur restarting or abnormal, then the last high-speed switch shut-in time is that the most long of electrical equipment allows the dead electricity time.
As the supplement of above-mentioned technical proposal, two timers built in described tester, by timer and high-speed switch
Combination forms time switch, and a timing for being used for high-speed switch closure, another is used for the timing that high-speed switch is opened, each
When closure, opening end cycle, two timers are all reset.
As the supplement of above-mentioned technical proposal, described power supply is electrical equipment power supply.
As the supplement of above-mentioned technical proposal, for power below 1KW 240VAC electrical equipments, when being tested to simplify
Wiring work, tester connects bypass switch, and when by-pass switch closes, the working power of tester is directly output to electricity consumption
Equipment.
As the supplement of above-mentioned technical proposal, described tester also includes MCU, temperature collect module, air-blower control mould
Block, keyboard input module and touch screen, by keyboard input module and touch-screen input data to MCU, MCU is used for direct current and interrupts control
System, 240V interrupt control and 380V interrupts control；Temperature signal is transferred to by MCU by temperature collect module, wind is controlled by MCU
Machine control module, blower fan are used for tester internal cooling, timer, touch screen and fan control module respectively with MCU both-way communications.
Further, described tester also includes the buzzer being connected with MCU, and the work of buzzer, honeybee are controlled by MCU
The device that rings is used for the high alarm of temperature.
The utility model simplifies whole test process, only can be obtained by the most long of electrical equipment with a test process
Allow the dead electricity time, test is easy, accurate and efficiency high；The test system designed according to test request, rational in infrastructure and work
Make reliable and stable.
Brief description of the drawings
Elementary diagram when Fig. 1 is the utility model test system and test；
Fig. 2 is timing diagram when the utility model tester high-speed switch is tested；
Flow chart when Fig. 3 is the utility model test system and test；
Fig. 4 is the structured flowchart of the utility model test system.
Embodiment
With reference to specification drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1
Test system as shown in Figure 4, it includes tester, described tester include MCU, timer, high-speed switch,
Temperature collect module, fan control module, buzzer, keyboard input module and touch screen, shape is combined by timer and high-speed switch
Into time switch.By keyboard input module and touch-screen input data to MCU, MCU is used for direct current and interrupts control, 240V interruptions
Control and 380V interrupt control；Temperature signal is transferred to by MCU by temperature collect module, buzzer and blower fan are controlled by MCU
Control module, buzzer are used for the high alarm of temperature, and blower fan is used for tester internal cooling.Timer, touch screen and air-blower control mould
Block respectively with MCU both-way communications.
Two timers built in described tester, a timing for being used for high-speed switch closure, another is used for quick
The timing opened is switched, each when closure, opening end cycle, two timers are all reset.During the opening of the high-speed switch
Between it is automatic cumulative since some initial value, initial value, sigma-delta value and it is front and rear open twice between closing time all use
It is previously set；When initial value design is sufficiently small, if electrical equipment occurs restarting or abnormal in test process, then the last
The high-speed switch shut-in time of display is that the most long of electrical equipment allows the dead electricity time.
Wiring diagram as shown in Figure 1, electrical equipment power supply are powered by high-speed switch to electrical equipment.
In view of the different electricity consumption species of electrical equipment, tester possesses the power interface of 3 types：
（1）Below 48VDC dc source, maximum current 20A；
（2）240VAC alternating currents, maximum current 20A；
（3）380VAC alternating currents, maximum current 20A.
Because the electricity consumption occasion of 240VAC alternating currents is relatively more, for power in below 1KW 240VAC electrical equipments, it is
Wiring work during simplified test, tester can design a by-pass switch, and when it is closed, the working power of tester can
To be directly output to electrical equipment.
The method tested using above-mentioned test system, as shown in figure 3, it comprises the following steps：
1) setting time constant t1, t2 and t3, now the high-speed switch in tester be in closure state；T1 represents quick
The initial temporal length opened is switched, t2 represents high-speed switch opening time accumulated value, and t3 represents to beat twice before and after high-speed switch
Closing time between opening；When high-speed switch closes, electrical equipment is in power supply state；When high-speed switch is opened, electrical equipment
In off-position；
2) test starting key is pressed；
3) after the t3 times, the 1st opening of high-speed switch in tester, after the t1 times, high-speed switch is again
Closure；Again after the t3 times, the 2nd opening of high-speed switch in tester, after the t1+t2 times, high-speed switch is again
Closure；Go down by that analogy, each high-speed switch opening time all cumulative t2 times, high-speed switch timing diagram as shown in Figure 2；
4) in test process, once finding that abnormal conditions occurs in electrical equipment, test end key is just pressed, is now tested
The time that instrument is shown allows the dead electricity time for electrical equipment is most long.
Described t1 is 1ms, t2 1-5ms, t2 5s.
Fig. 2 is tester high-speed switch timing diagram.This test process sets 3 time constants t1, t2 and t3, and t1 expressions are quick
The initial temporal length opened is switched, t2 represents high-speed switch opening time accumulated value, and t3 represents high-speed switch closing time.It hurry up
During speed switch closure, electrical equipment is in power supply state；When high-speed switch is opened, electrical equipment is in off-position.Tester
Measuring accuracy be 1ms.
Fig. 3 is test system flow chart.Test process is as follows：
1. setting t1, t2 and t3, now the high-speed switch in tester is in closure state；
2. press test starting key；
3. after the t3 times, the 1st opening of high-speed switch in tester, after the t1 times, high-speed switch is again
Closure；Again after the t3 times, the 2nd opening of high-speed switch in tester, after the t1+t2 times, high-speed switch is again
Closure；Go down by that analogy, each high-speed switch opening time all cumulative t2 times.
4. in test process, once finding that abnormal conditions occurs in electrical equipment, test end key is just pressed.At this moment, survey
The time that examination instrument is shown, which is exactly that the electrical equipment of our needs is most long, allows the dead electricity time.
Method step and data described herein are specific embodiment of the utility model, are to this practicality
The totality that new spirit is made is explained and for example, the utility model those skilled in the art is also realized that modification or can
A variety of possibilities of the embodiment of choosing, it is of the present utility model spirit and principle inspire under, various modifications may be made, supplement, improve or
It is similar to substitute.It is understood that these modifications, supplement, improvement or replacement will be considered as included in the utility model, and
Without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (5)
1. a kind of most long test system for allowing the dead electricity time of electrical equipment, including tester, it is characterised in that described test
Instrument includes a high-speed switch, and power supply is powered by the high-speed switch to electrical equipment；
Two timers built in described tester, are combined by timer and high-speed switch and form time switch, and one is used for soon
The timing that fast switch closes, another is used for the timing that high-speed switch is opened, and each when closure, opening end cycle, two fixed
When device all reset.
2. the most long test system for allowing the dead electricity time of electrical equipment according to claim 1, it is characterised in that described
Power supply is electrical equipment power supply.
3. the most long test system for allowing the dead electricity time of electrical equipment according to claim 1, it is characterised in that for work(
Rate connects bypass switch, works as bypass in below 1KW 240VAC electrical equipments, wiring work when being tested to simplify, tester
During switch closure, the working power of tester is directly output to electrical equipment.
4. the most long test system for allowing the dead electricity time of electrical equipment according to claim 1, it is characterised in that described
Tester also includes MCU, temperature collect module, fan control module, keyboard input module and touch screen, passes through keyboard input module
With touch-screen input data to MCU, MCU is used for direct current interruption control, 240V interrupts control and 380V is interrupted and controlled；Pass through temperature
Temperature signal is transferred to MCU by acquisition module, and fan control module is controlled by MCU, and blower fan is used for tester internal cooling, timing
Device, touch screen and fan control module respectively with MCU both-way communications.
5. the most long test system for allowing the dead electricity time of electrical equipment according to claim 4, it is characterised in that described
Tester also includes the buzzer being connected with MCU, and the work of buzzer is controlled by MCU, and buzzer is used for the high alarm of temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720669037.2U CN207198249U (en) | 2017-06-09 | 2017-06-09 | A kind of most long test system for allowing the dead electricity time of electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720669037.2U CN207198249U (en) | 2017-06-09 | 2017-06-09 | A kind of most long test system for allowing the dead electricity time of electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207198249U true CN207198249U (en) | 2018-04-06 |
Family
ID=61785001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720669037.2U Active CN207198249U (en) | 2017-06-09 | 2017-06-09 | A kind of most long test system for allowing the dead electricity time of electrical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207198249U (en) |
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2017
- 2017-06-09 CN CN201720669037.2U patent/CN207198249U/en active Active
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