CN202720289U - Relay protection tester - Google Patents
Relay protection tester Download PDFInfo
- Publication number
- CN202720289U CN202720289U CN 201220384361 CN201220384361U CN202720289U CN 202720289 U CN202720289 U CN 202720289U CN 201220384361 CN201220384361 CN 201220384361 CN 201220384361 U CN201220384361 U CN 201220384361U CN 202720289 U CN202720289 U CN 202720289U
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- current
- relay
- voltage
- housing
- loop
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Abstract
The utility model discloses a relay protection tester. The tester comprises a shell and a circuit arranged in the shell. The circuit comprises a major loop, a measurement control loop, a time metering loop and an acousto-optic prompt loop. The major loop comprises a voltage regulator and a large current generator. The measurement control loop comprises a voltage/current selection button installed on the shell. The voltage/current selection button is electrically connected to a pulse distributor. An output terminal of the pulse distributor is electrically connected to a relay used to select a power supply output pathway through a power amplifier circuit. The time metering loop comprises a digital millisecond meter installed on the shell. The digital millisecond meter is provided with a start/stop signal input terminal. The digital millisecond meter is electrically connected to a reset button, a one-way/two-way switch and an AC/DC selection switch. By using the relay protection tester of the utility model, the test of a plurality of relay protection performance parameters of an object to be measured is realized. The size is small. Weight is light and carrying is convenient.
Description
Technical field
The utility model relates to technical field of relay protection, specifically, relates to a kind of relay-protection tester.
Background technology
Relay is widely used in the industries such as automatic control, power circuit detection and protection loop; the exploitation of relay-protection tester and application have improved the testing level of protective relaying device greatly; improved debugging efficiency; to guaranteeing the correct operation of relay, the security level that improves electrical network has positive meaning.But present relay-protection tester mainly is to be combined by pressure regulator and phase shifter, and this relay-protection tester performance is single, volume is heavy, precision is not high, cost is high, efficient is low, measures and carries inconvenience.
The utility model content
Technical problem to be solved in the utility model is: providing a kind of can realize polytype relay protection test, and volume relay-protection tester little, lightweight, easy to carry.
For solving the problems of the technologies described above, the technical solution of the utility model is: relay-protection tester, and comprise housing and be arranged on the interior circuit of housing, described circuit comprises:
Major loop, described major loop comprises pressure regulator and current lifting device, the input end of described pressure regulator is connected to AC power, the output terminal of described pressure regulator is connected to the input end of described current lifting device, the output terminal of described current lifting device is drawn respectively alternating-current voltage source lead-out terminal and ac current source lead-out terminal, the output terminal of described current lifting device is also drawn the DC source lead-out terminal through current rectifying and wave filtering circuit, described alternating-current voltage source lead-out terminal and described DC source lead-out terminal all are electrically connected to the voltage/current table that is installed on the housing, described ac current source lead-out terminal is by a side of mutual inductor, and the opposite side of described mutual inductor is electrically connected to described voltage/current table;
Measure control loop, described measurement control loop comprises the voltage/current selection button that is installed on the housing, described voltage/current selects button to be electrically connected to pulsqe distributor, and the output terminal of described pulsqe distributor is electrically connected to for the relay of selecting the power supply output channel by power amplification unit;
The time measurement loop, described time measurement loop comprises the digital millisecond meter that is installed on the housing, described digital millisecond meter is provided with and opens/stop signal input part, and described digital millisecond meter also is electrically connected to reset button, single channel/two-way switch and the AC/DC selector switch that is installed on the housing.
Preferably, described circuit also comprises the acousto-optic hint loop, and described acousto-optic hint loop comprises hummer and action indicator, and described hummer and action indicator are in parallel.
Preferably, described current lifting device is provided with temperature detect switch (TDS), and described temperature detect switch (TDS) is connected in series to the input end of described pressure regulator.
Preferably, described pressure regulator is two carbon brush pressure regulators.
Preferably, described voltage/current table is real effective voltage/current table.
Preferably, have louvre on the sidewall of described housing.
Preferably, described housing is the plastic-aluminum housing.
After having adopted technique scheme; the beneficial effects of the utility model are: because the major loop of the relay-protection tester of this utility model comprises pressure regulator and current lifting device; the input end of described pressure regulator is connected to AC power; the output terminal of described pressure regulator is connected to the input end of described current lifting device; the output terminal of described current lifting device is drawn respectively alternating-current voltage source lead-out terminal and ac current source lead-out terminal, and the output terminal of described current lifting device is also drawn the DC source lead-out terminal through current rectifying and wave filtering circuit.Comprise the voltage/current selection button that is installed on the housing and measure control loop, described voltage/current selects button to be electrically connected to pulsqe distributor, and the output terminal of described pulsqe distributor is electrically connected to for the relay of selecting the power supply output channel by power amplification unit.Therefore relay-protection tester of the present utility model is many for the main circuit power output class that relay protection test uses; by measuring the selection of pulsqe distributor in the control loop; control adhesive or disconnection for the relay of selecting the power supply output channel; thereby realize need selecting the major loop out-put supply of use, realize the multiple relay protection performance parameter test to object to be measured.
When described voltage/current table was real effective voltage/current table, real effective voltage/current table was not subjected to the impact of inductance and electric capacity in the process of measuring voltage and electric current, and antijamming capability is strong, and measurement effect is good.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the circuit principle structure schematic diagram of relay-protection tester of the present utility model;
Fig. 2 is the theory structure schematic diagram in the time measurement loop of relay-protection tester of the present utility model;
Fig. 3 is the theory structure schematic diagram in the acousto-optic hint loop of relay-protection tester of the present utility model;
Fig. 4 is that the measurement control loop of relay-protection tester of the present utility model removes for the theory structure schematic diagram behind the relay of selecting the power supply output channel;
Among the figure: 1, pressure regulator; 2, current lifting device; 3, temperature detect switch (TDS); 4, transformation rectification filtering unit; 5, digital millisecond meter; 6, mutual inductor; 7, alternating-current voltage source lead-out terminal; 8, ac current source lead-out terminal; 9, DC source lead-out terminal; 10, voltage/current table; 11, current rectifying and wave filtering circuit; 12, single channel/two-way switch; 13, reset button; 14, AC/DC selector switch; 15, hummer; 16, action indicator; 17, voltage/current is selected button; 18, pulsqe distributor; 19, power amplification unit.
Embodiment
Shown in Fig. 1, Fig. 2 and Fig. 3 are common; relay-protection tester of the present utility model; comprise the housing (not shown) and be arranged on the interior circuit of housing; have louvre on the sidewall of housing; make electric elements good heat dissipation effect in the housing, can prevent excess Temperature in the housing and affect life-span of electric elements, housing is the plastic-aluminum housing; can better shield the circuit in the housing and external interference, anti-external interference ability is strong.
Circuit in the housing comprises major loop, measures control loop, time measurement loop and acousto-optic hint loop.
Major loop comprises pressure regulator 1 and current lifting device 2, the input end of pressure regulator 1 is connected to AC power, the output terminal of pressure regulator 1 is connected to the input end of current lifting device 2, the output terminal of current lifting device 2 is drawn respectively alternating-current voltage source lead-out terminal 7 and ac current source lead-out terminal 8, the output terminal of current lifting device 2 is also drawn DC source lead-out terminal 9 through current rectifying and wave filtering circuit 11, alternating-current voltage source lead-out terminal 7 and DC source lead-out terminal 9 all are electrically connected to the voltage/current table 10 that is installed on the housing, and ac current source lead-out terminal 8 is electrically connected to voltage/current table 10 after by mutual inductor 6.Current lifting device 2 is provided with temperature detect switch (TDS) 3, and temperature detect switch (TDS) 3 is connected in series to the input end of pressure regulator 1, when current lifting device 2 temperature during greater than 75 ℃; temperature detect switch (TDS) 3 disconnects; make this relay-protection tester automatically cut off alternating current input power supplying, to prevent current lifting device 2 excess Temperatures, cause damage.Alternating current input power supplying also passes through transformation rectification filtering unit 4 output DC sources for control circuit.
With reference to Fig. 4, measure control loop and comprise the voltage/current selection button 17 that is installed on the housing, voltage/current selects button 17 to be electrically connected to pulsqe distributor 18, in the present embodiment, pulsqe distributor 18 is CD4017, and the output terminal of pulsqe distributor CD4017 is electrically connected to for the relay of selecting the power supply output channel by power amplification unit 19; Therefore relay-protection tester of the present utility model is many for the main circuit power output class of test use; by measuring the selection of pulsqe distributor 18 in the control loop; control adhesive or disconnection for the relay of selecting the power supply output channel; thereby need can select the major loop out-put supply of use, realize the multiple relay protection performance parameter test to object to be measured.
With reference to Fig. 2, the time measurement loop comprises the digital millisecond meter 5 that is installed on the housing, and digital millisecond meter 5 is provided with and opens/stop signal input part, and digital millisecond meter 5 is electrically connected to reset button 13, single channel/two-way switch 12 and AC/DC selector switch 14.In the present embodiment, the sensitivity of digital millisecond meter 5 is 0.1 second, and precision is high.
With reference to Fig. 3, the acousto-optic hint loop comprises hummer 15 and action indicator 16, and hummer 15 and action indicator 16 parallel connections when using this relay-protection tester to measure, are carried out acousto-optic hint, the handled easily librarian use.
In the present embodiment, pressure regulator 1 adopts two carbon brush pressure regulators, can export simultaneously by two-way.Voltage/current table 10 is real effective voltage/current table.Real effective voltage/current table also is root-mean-square value voltage/current table, and real effective voltage/current table is in when work, and the instantaneous value of first Gather and input electric current or input voltage square was averaged by the time, showed at last the square root of this mean value.Real effective voltage/current table is not subjected to the impact of inductance and electric capacity in the process of measuring voltage and electric current, antijamming capability is strong, and measurement effect is good.
The relay-protection tester of the present embodiment, the object that can test comprises: the verification of relay superpotential, relay current verification, the verification of time relay delay time etc.
The above only is giving an example of the utility model preferred forms.Should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model spirit and principle, can also make some distortion and improvement.Protection domain of the present utility model is as the criterion with the content of claim, and any equivalent transformation that carries out based on technology enlightenment of the present utility model is also within protection domain of the present utility model.
Claims (7)
1. relay-protection tester comprises housing and is arranged on the interior circuit of housing, and it is characterized in that: described circuit comprises:
Major loop, described major loop comprises pressure regulator and current lifting device, the input end of described pressure regulator is connected to AC power, the output terminal of described pressure regulator is connected to the input end of described current lifting device, the output terminal of described current lifting device is drawn respectively alternating-current voltage source lead-out terminal and ac current source lead-out terminal, the output terminal of described current lifting device is also drawn the DC source lead-out terminal through current rectifying and wave filtering circuit, described alternating-current voltage source lead-out terminal and described DC source lead-out terminal all are electrically connected to the voltage/current table that is installed on the housing, described ac current source lead-out terminal is by a side of mutual inductor, and the opposite side of described mutual inductor is electrically connected to described voltage/current table;
Measure control loop, described measurement control loop comprises the voltage/current selection button that is installed on the housing, described voltage/current selects button to be electrically connected to pulsqe distributor, and the output terminal of described pulsqe distributor is electrically connected to for the relay of selecting the power supply output channel by power amplification unit;
The time measurement loop, described time measurement loop comprises the digital millisecond meter that is installed on the housing, described digital millisecond meter is provided with and opens/stop signal input part, and described digital millisecond meter also is electrically connected to reset button, single channel/two-way switch and the AC/DC selector switch that is installed on the housing.
2. relay-protection tester as claimed in claim 1, it is characterized in that: described circuit also comprises the acousto-optic hint loop, and described acousto-optic hint loop comprises hummer and action indicator, and described hummer and action indicator are in parallel.
3. relay-protection tester as claimed in claim 1, it is characterized in that: described current lifting device is provided with temperature detect switch (TDS), and described temperature detect switch (TDS) is connected in series to the input end of described pressure regulator.
4. relay-protection tester as claimed in claim 1 is characterized in that: described pressure regulator is two carbon brush pressure regulators.
5. relay-protection tester as claimed in claim 1, it is characterized in that: described voltage/current table is real effective voltage/current table.
6. relay-protection tester as claimed in claim 1 is characterized in that: have louvre on the sidewall of described housing.
7. such as each described relay-protection tester of claim 1 to 6, it is characterized in that: described housing is the plastic-aluminum housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220384361 CN202720289U (en) | 2012-08-04 | 2012-08-04 | Relay protection tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220384361 CN202720289U (en) | 2012-08-04 | 2012-08-04 | Relay protection tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202720289U true CN202720289U (en) | 2013-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220384361 Expired - Fee Related CN202720289U (en) | 2012-08-04 | 2012-08-04 | Relay protection tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202720289U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645405A (en) * | 2013-12-25 | 2014-03-19 | 珠海格力电器股份有限公司 | Overload protector testing device |
| CN106443225A (en) * | 2016-05-26 | 2017-02-22 | 国网辽宁省电力有限公司朝阳供电公司 | Power uninterruptible relay protection tester |
| CN109946502A (en) * | 2019-04-17 | 2019-06-28 | 开滦能源化工股份有限公司吕家坨矿业分公司 | A kind of portable personal electrical shock protection detection device |
-
2012
- 2012-08-04 CN CN 201220384361 patent/CN202720289U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645405A (en) * | 2013-12-25 | 2014-03-19 | 珠海格力电器股份有限公司 | Overload protector testing device |
| CN103645405B (en) * | 2013-12-25 | 2017-09-29 | 格力电器（武汉）有限公司 | Overload protector testing device |
| CN106443225A (en) * | 2016-05-26 | 2017-02-22 | 国网辽宁省电力有限公司朝阳供电公司 | Power uninterruptible relay protection tester |
| CN109946502A (en) * | 2019-04-17 | 2019-06-28 | 开滦能源化工股份有限公司吕家坨矿业分公司 | A kind of portable personal electrical shock protection detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20160804 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |