A kind of speed parameter calibrating installation of high-voltage switch gear testing mechanical characteristic appearance
[technical field]
The present invention relates to the high-tension switch gear technical field of measurement and test, particularly a kind of speed parameter calibrating installation of high-voltage switch gear testing mechanical characteristic appearance.
[background technology]
High-voltage switch gear (isolating switch) is control and a protection equipment important in the electric system, and the reliability of switchgear mechanical aspects has very important influence to the characteristic of equipment.In the electric system preventive trial, the detection of its mechanical property occupies an important position.No matter power circuit is in any state, for example unloaded, load or short circuit, and when requiring the isolating switch action, it should be able to action message, or closes and close, or disconnecting circuit.Isolating switch excises faulty component from electrical network when power circuit or device fails fast, guarantees the normal operation of electrical network non-fault part.The mechanical property parameter is to judge the key parameter of high-voltage switch gear performance, and the function of high-voltage switch gear testing mechanical characteristic appearance is exactly to measure the instrument of high-voltage switch gear mechanical property parameter, and speed parameter is its major parameter.The kind of China's high-voltage switch gear testing mechanical characteristic appearance is a lot, and automaticity is also very high, but corresponding calibrating installation relatively lags behind, and the accuracy of life period parameter is low, and device therefor is various, and the verification wiring is complicated, shortcomings such as inefficiency.
[summary of the invention]
The object of the present invention is to provide a kind of speed parameter calibrating installation of high-voltage switch gear testing mechanical characteristic appearance, to solve the problems of the technologies described above.
To achieve these goals, the present invention adopts following technical scheme:
A kind of speed parameter calibrating installation of high-voltage switch gear testing mechanical characteristic appearance is used to calibrate the seized sensor of high-voltage switch gear testing mechanical characteristic appearance, comprises permanent magnet mechanism, adjustable fulcrum, lever, moving component and standard transducer; Said lever middle part is provided with second groove, and said adjustable fulcrum is arranged in said second groove; Said permanent magnet mechanism comprises a moving bar; Said lever one end connects said moving bar, and the other end connects said moving component; Said moving component one end connects said standard transducer, and the other end connects seized sensor.
Right ends also is provided with first groove and three-flute on the lever; Moving bar is provided with first fulcrum, and first fulcrum is arranged in the three-flute; Second fulcrum that moving component is provided with, said second fulcrum is arranged in first groove.
Said moving component is shaft-like, and it is installed between two pairs of guide wheels.
Said calibrating installation comprises a housing, and the end that moving component connects seized sensor extends said housing.
Said permanent magnet mechanism, adjustable fulcrum, lever and standard transducer are arranged in the said housing; Said housing has a panel, and said panel is provided with sensor interface, distance adjustment knob, power interface; Said sensor interface connects said standard transducer; Said distance adjustment knob connects said adjustable fulcrum; Said power interface connects said permanent magnet mechanism.
The present invention has following beneficial effect: leverage of the present invention utilizes mechanical hook-up to produce motion; When the drive standard transducer is measured; Drive is by the tachogenerator of slowdown monitoring switch appearance; Also this movement velocity is measured by the slowdown monitoring switch appearance, the two result is compared, promptly know the error of seized instrument; This calibrating installation is exported control signal and rate signal, can make things convenient for the working control signal and the mechanical action of simulated high-pressure switch, and the velocity characteristic that are used to calibrate high-voltage switch gear testing mechanical characteristic appearance can make it conveniently carry out the magnitude tracing of speed amount; This calibrating installation automaticity is high, and the time parameter accuracy is high, and the verification wiring is simple, high efficiency.
[description of drawings]
The principle sketch of Fig. 1 speed parameter calibrating installation;
The panel sketch of Fig. 2 speed parameter calibrating installation;
Fig. 3 is the control device synoptic diagram of permanent magnet mechanism;
Fig. 4 is the workflow diagram of apparatus of the present invention.
Among the figure: the 1--permanent magnet mechanism; The 2--adjustable fulcrum; The 3--lever; The 4--moving component; The 5--standard transducer; The seized sensor of 6--; The 7--vernier caliper; 8--enabling signal input jack+; 9--enabling signal input jack-; 10--fracture signal output terminal; The 11--sensor interface; 12--distance adjustment knob; The 13--power control switch; The 14--power interface; The 15--ground terminal; The 31--groove; The 32--groove; The 33--groove; The 41--fulcrum; 101--moves bar; The 102--fulcrum.
[embodiment]
Below in conjunction with accompanying drawing the present invention is done and to describe in further detail:
See also shown in Figure 1ly, the speed parameter calibrating installation of a kind of high-voltage switch gear testing mechanical characteristic of the present invention appearance comprises: permanent magnet mechanism 1, adjustable fulcrum 2, lever 3, moving component 4, standard transducer 5, seized sensor 6 and vernier caliper 7.
Permanent magnet mechanism 1 comprises a vertical moving bar 101, and moving bar 101 is provided with a fulcrum 102; Be provided with groove 31, groove 32, groove 33 on the lever 3 from left to right successively; The fulcrum 102 of permanent magnet mechanism 1 is arranged in the groove 33; Adjustable fulcrum 2 is arranged in the groove 32; Fulcrum 41 on the moving component 4 is arranged in the groove 31.Moving component 4 is stuck between two pairs of guide wheels, and moving component 4 is vertically moved.Permanent magnet mechanism 1 charging, the electromagnet through set inside can drive moving bar 101 in the vertical directions motion, provides power to make lever 3 motions.The distance adjustment button 12 of the position of adjustable fulcrum 2 through calibrating installation regulated, thereby and then the arm of force length of scalable lever 3 distance of moving component 4 is changed, vernier caliper 7 is used to detect these data.Standard transducer 5 is connected with moving component 4 with seized sensor 6, is used to detect high-voltage switch gear testing mechanical characteristic appearance velocity characteristic.
Its method is to utilize mechanical hook-up to produce motion, when drive standard transducer 5 is measured; Drive is by the tachogenerator 6 of slowdown monitoring switch appearance; Also this movement velocity is measured by the slowdown monitoring switch appearance, the two result is compared, promptly know the error of seized instrument.
Permanent magnet mechanism 1 is adopted in the power section of this programme, and it is simple in structure, reliable operation, and speed regulation is convenient.The about 12mm of the stroke of this mechanism is about the about 1m/s of speed.Be increase stroke and velocity amplitude, and realize adjustable size adopting the adjustable leverage of the arm of force.
See also Fig. 2 and shown in Figure 3, be the panel sketch of calibrating installation; Panel is provided with enabling signal input jack 8, enabling signal input jack 9, fracture signal output terminal 10, sensor interface 11, distance adjustment knob 12, power control switch 13, power interface 14, ground terminal 15; The signal that standard transducer 5 is generated transfers to computing machine through sensor signal interface 11.Distance adjustment knob 12 is used for adjustment (adjusting) lever fulcrum 2, thus the distance of adjustment movement parts 4 motions.Power interface 14 provides power for permanent magnet mechanism 1.Input jack 8,9 is used for input control signal, the startup of control permanent magnet mechanism 1, and the speed of permanent magnet mechanism 1 is the height decision by institute's charging voltage on it.Input jack the 8, the 9th directly connects the differentiating circuit that starts usefulness, sends enabling signal by the conversion of solid-state relay optocoupler, makes actuating of relay capacitor discharge, causes the action of permanent magnet mechanism 1.
See also shown in Figure 4ly, during system start-up, start mechanical movement device and microprocessor data acquisition system simultaneously, sensor (standard transducer and by the school Instrument sensor) signal is gathered; Serve bit machine after the arrangement and calculate, analyze, provide corresponding velocity amplitude.Operating personnel import the velocity amplitude of seized switch appearance simultaneously, as the detection record of this responsiveness amount.The governing speed shelves., carry out next operation again.Thereby obtain the error amount under the friction speed value, and generate report.