CN209627249U - A kind of electric voltage frequency debugging apparatus - Google Patents
A kind of electric voltage frequency debugging apparatus Download PDFInfo
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- CN209627249U CN209627249U CN201920444264.4U CN201920444264U CN209627249U CN 209627249 U CN209627249 U CN 209627249U CN 201920444264 U CN201920444264 U CN 201920444264U CN 209627249 U CN209627249 U CN 209627249U
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Abstract
The utility model relates to power safety technique fields, more particularly to a kind of electric voltage frequency debugging apparatus, including power module, voltage regulator module and frequency adjustment module；Power module includes current supply circuit, charge circuit and its can switch to the switching that circuit switches over, and the output end of current supply circuit and charge circuit is electrically connected with the input terminal of voltage regulator module and frequency adjustment module；Voltage regulator module includes the circuit being composed in series by pressure regulator, voltage output switch, time-delay relay, and output end connects connecting terminal；Frequency adjustment module includes the circuit being composed in series by frequency converter, rate-adaptive pacemaker switch, time-delay relay, and output end connects connecting terminal.Adjust output voltage and frequency using the device, can preferably experimental arms breaker low-and high-frequency, high-low pressure trip off-the-line function, which be able to satisfy test requirements document, be provided simultaneously with can outdoor portable operation the features such as.
Description
Technical field
The utility model relates to power safety technique fields, more particularly to a kind of electric voltage frequency debugging apparatus.
Background technique
As country advocates and greatly develop small hydropower plants in mountainous area distributed power generation, a large amount of small power stations concentrate online, to avoid
It is impacted to power grid, the demarcation circuit breaker of distributed generation resource online branch line should configure the guarantor such as overcurrent, overvoltage, low-and high-frequency off-the-line
Protective function.
(1) at present distribution-network automation switch the voltage rating of matched voltage transformer be usually 220V, according to adjusting
It is required that overvoltage definite value has reached 253V, conventional relay protection instrument since the limitation of capacity can not export the voltage higher than 250V, so
The correctness of over-voltage definite value can not be verified according to the fixed value list actually put into；
(2) conventional AC boosting accuracy of instrument is unable to satisfy the trip time of verifying over-voltage.Height can not be tested simultaneously
The Protections such as low frequency off-the-line；
(3) routine experiment instrument working power is all alternating current, and the demarcation circuit breaker of usual distributed generation resource online branch line exists
Remote open air needs to move when field experiment bulky generator, very inconvenient.
Utility model content
The utility model is based on problem above, in order to which high (low) frequency of better experimental arms breaker, high (low) pressure are jumped
Lock off-the-line function, designs a kind of electric voltage frequency debugging apparatus suitable for the function, which is able to satisfy examination
Test requirement, be provided simultaneously with can outdoor portable operation the features such as.
The technical solution of the utility model is:
A kind of electric voltage frequency debugging apparatus, including power module, voltage regulator module and frequency adjustment module；
The power module includes current supply circuit, charge circuit and switching switch, and the switching switch is powered back to described
Road and charge circuit switch over, and the current supply circuit is directly powered by alternating current, the charge circuit include by battery and
The circuit of inverter composition, the output end of the current supply circuit and the charge circuit with the voltage regulator module and frequency
The input terminal of adjustment module is electrically connected；
The voltage regulator module includes the circuit being composed in series by pressure regulator, voltage output switch, time-delay relay,
Output end connects connecting terminal；
The frequency adjustment module includes the circuit being composed in series by frequency converter, rate-adaptive pacemaker switch, time-delay relay,
Output end connects connecting terminal.
It can be switched by the switching and the current supply circuit and the charge circuit are switched over, it is described for selecting power supply
Voltage regulator module and the frequency adjustment module are powered；The adjusting of voltage gear can be carried out to the pressure regulator, changed defeated
Voltage out presses voltage output switch, exports the voltage after changing by connecting terminal；The frequency converter can be carried out
Variable frequency adjustment changes output frequency by the potentiometer of rotary frequency convertors come given frequency, presses rate-adaptive pacemaker switch, makes to change
Frequency after change is exported by connecting terminal.
Power module can be directly powered by alternating current AC220, can such as be switched outdoors by switching without commercial power supply
It is switched to charge circuit to be powered, is load power supply by battery, the DC24 direct current of battery output is converted to using inverter
AC220 supplies electricity to voltage regulator module and frequency adjustment module；When needing to carry out frequency protection experiment, pass through delay first
Relay setting output time, frequency converter regulate the frequency for needing to test by potentiometer, then press rate-adaptive pacemaker switch, by
Connecting terminal is exported to experimental facilities；When needing to carry out overvoltage protection experiment, it is arranged by time-delay relay exports first
Time, the voltage that rear inversion comes regulate required experimental voltage by pressure regulator, then press voltage output switch, by terminals
Son is exported to experimental facilities.
Further, it connects in the current supply circuit air switch.
Further, in the output end series connection air switch of the voltage regulator module.
Further, in the output end series connection air switch of the frequency adjustment module.
Having air switch is all provided in the input side and outlet side of device to be protected, and circuit or electrical equipment can be occurred
Short circuit, heavy overload and under-voltage etc. are protected.
The utility model has the following beneficial effects:
The device conventional relay protection instrument off-capacity that encounters and regular alternating current liter during being directed to over-voltage experiment first
In the unappeasable situation of precision for pressing instrument, using voltage regulator module, using the cooperation of pressure regulator and time-delay relay, very
It is good solve conventional relay protection instrument due to capacity limitation can not the AC boosting accuracy of instrument of output HIGH voltage and routine can not
The problem of meeting the trip time of verifying over-voltage；Frequency adjustment module is used simultaneously, passes through matching for frequency converter and time-delay relay
It closes, also incorporates the Protections function such as low-and high-frequency off-the-line, be convenient to answer the demarcation circuit breaker of distributed generation resource online branch line
Configure the experiment of the defencive functions such as overvoltage, low-and high-frequency off-the-line；Simultaneously in view of the portability of outdoor experiment, power module is simultaneously
It incorporates the current supply circuit directly powered by alternating current or switches the charge circuit being powered by battery by inverter, so that instrument
Device may be directly applied to outdoor experiment in the case where fully charged, greatly facilitate outdoor experiment.
Detailed description of the invention
Fig. 1 is the circuit theory schematic diagram of the utility model.
Fig. 2 is the outside schematic diagram of device.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；In order to better illustrate this embodiment, attached
Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable.Being given for example only property of positional relationship is described in attached drawing
Illustrate, should not be understood as the limitation to this patent.
Embodiment 1:
As shown in Figure 1, a kind of electric voltage frequency debugging apparatus, including power module, voltage regulator module and frequency adjust mould
Block；
The power module includes current supply circuit, charge circuit and switching switch, and the switching switch is powered back to described
Road and charge circuit switch over, and the current supply circuit is directly powered by alternating current, the charge circuit include by battery and
The circuit of inverter composition, the output end of the current supply circuit and the charge circuit with the voltage regulator module and frequency
The input terminal of adjustment module is electrically connected；
The voltage regulator module includes the circuit being composed in series by pressure regulator, voltage output switch, time-delay relay,
Output end connects connecting terminal；
The frequency adjustment module includes the circuit being composed in series by frequency converter, rate-adaptive pacemaker switch, time-delay relay,
Output end connects connecting terminal.
It can be switched by the switching and the current supply circuit and the charge circuit are switched over, it is described for selecting power supply
Voltage regulator module and the frequency adjustment module are powered；The adjusting of voltage gear can be carried out to the pressure regulator, changed defeated
Voltage out presses voltage output switch, exports the voltage after changing by connecting terminal；The frequency converter can be carried out
Variable frequency adjustment changes output frequency by the potentiometer of rotary frequency convertors come given frequency, presses rate-adaptive pacemaker switch, makes to change
Frequency after change is exported by connecting terminal.
Power module can be directly powered by alternating current AC220, can such as be switched outdoors by switching without commercial power supply
It is switched to charge circuit to be powered, is load power supply by battery, the DC24 direct current of battery output is converted to using inverter
AC220 supplies electricity to voltage regulator module and frequency adjustment module；When needing to carry out frequency protection experiment, pass through delay first
Relay setting output time, frequency converter regulate the frequency for needing to test by potentiometer, then press rate-adaptive pacemaker switch, by
Connecting terminal is exported to experimental facilities；When needing to carry out overvoltage protection experiment, it is arranged by time-delay relay exports first
Time, the voltage that rear inversion comes regulate required experimental voltage by pressure regulator, then press voltage output switch, by terminals
Son is exported to experimental facilities.
Wherein, in current supply circuit connect air switch, voltage regulator module time-delay relay and connecting terminal it
Between connect air switch, air switch of connecting between the time-delay relay and connecting terminal of frequency adjustment module.In device
Input side and outlet side are all provided with having air switch and are protected, can to short circuit that circuit or electrical equipment occur, heavy overload and
Under-voltage etc. is protected.
In the present embodiment, the voltage protection experiment of voltage regulator module analog 0-300V, it is accurate test overpressure value and
Trip time；Frequency adjustment module analog low-and high-frequency Protection, accurate test frequency value and trip time；Power module can
Backup power supply is converted to the AC220 power supply of equipment normal work, it is portable, preferably adapt to outdoor use.
In the present embodiment, switching switch uses intermediate relay, realizes the switching interlock function in two circuits.
In the present embodiment, inverter uses DC24-AC220 inverter, the exchange for being 220V by the battery inversion of 24V
Power supply.
In the present embodiment, pressure regulator uses model STG-5000W pressure regulator, carries gear adjusting pressuring knob and voltage
Show screen, voltage regulation limits 0-300V.
In the present embodiment, frequency converter use use De Lixi frequency converter, carry adjust frequency potentiometer knob and
Frequency display screen curtain.
In the present embodiment, time-delay relay uses Omron DH48S digital display time delay relay, carries setting delay
Time button and display delayed show screen.
As shown in Fig. 2, the internal module of the device can be loaded in cabinet, the surface of cabinet be equipped with corresponding display box and
Key；
The connecting terminal of frequency output terminal subrepresentation frequency adjustment module output end, can be exported to experiment by conducting wire and be set
It is standby；
The connecting terminal of voltage output end subrepresentation voltage regulator module output end, can be exported to experiment by conducting wire and be set
It is standby；
What frequency adjusting knob indicated is the potentiometer knob of frequency converter；
Rate-adaptive pacemaker button indication is rate-adaptive pacemaker switch；
What time adjustment button A was indicated is the delay setting button of the time-delay relay in frequency adjustment module；
What frequency and time showing indicated is that time-delay relay prolongs in the frequency and frequency adjustment module of frequency converter output
When export the time；
What voltage adjusting knob indicated is the gear adjusting knob of pressure regulator；
Voltage output button indication is voltage output switch；
What time adjustment button B was indicated is the delay setting button of the time-delay relay in voltage regulator module；
What voltage and time showing indicated is that time-delay relay prolongs in the voltage and voltage regulator module of transformer output
When export the time；
AC charging terminal indicates that alternating current AC220V's is filled with interface；
What switching push button indicated is intermediate relay switch, is switched over to current supply circuit and charge circuit.
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (4)
1. a kind of electric voltage frequency debugging apparatus, which is characterized in that adjust mould including power module, voltage regulator module and frequency
Block；
The power module includes current supply circuit, charge circuit and switching switch, switching switch to the current supply circuit with
Charge circuit switches over, and the current supply circuit is directly powered by alternating current, and the charge circuit includes by battery and inversion
The output end of the circuit of device composition, the current supply circuit and the charge circuit is adjusted with the voltage regulator module and frequency
The input terminal of module is electrically connected；
The voltage regulator module includes the circuit being composed in series by pressure regulator, voltage output switch, time-delay relay, output
End connection connecting terminal；
The frequency adjustment module includes the circuit being composed in series by frequency converter, rate-adaptive pacemaker switch, time-delay relay, output
End connection connecting terminal.
2. a kind of electric voltage frequency debugging apparatus according to claim 1, which is characterized in that connect in the current supply circuit
Air switch.
3. a kind of electric voltage frequency debugging apparatus according to claim 1, which is characterized in that in the voltage regulator module
Output end series connection air switch.
4. a kind of electric voltage frequency debugging apparatus according to claim 1, which is characterized in that in the frequency adjustment module
Output end series connection air switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920444264.4U CN209627249U (en) | 2019-04-01 | 2019-04-01 | A kind of electric voltage frequency debugging apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920444264.4U CN209627249U (en) | 2019-04-01 | 2019-04-01 | A kind of electric voltage frequency debugging apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209627249U true CN209627249U (en) | 2019-11-12 |
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|---|---|---|---|
| CN201920444264.4U Active CN209627249U (en) | 2019-04-01 | 2019-04-01 | A kind of electric voltage frequency debugging apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109889053A (en) * | 2019-04-01 | 2019-06-14 | 广东电网有限责任公司 | A kind of electric voltage frequency debugging apparatus |
-
2019
- 2019-04-01 CN CN201920444264.4U patent/CN209627249U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109889053A (en) * | 2019-04-01 | 2019-06-14 | 广东电网有限责任公司 | A kind of electric voltage frequency debugging apparatus |
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