CN103017939B - Novel temperature controller checking device - Google Patents
Novel temperature controller checking device Download PDFInfo
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- CN103017939B CN103017939B CN201210512460.3A CN201210512460A CN103017939B CN 103017939 B CN103017939 B CN 103017939B CN 201210512460 A CN201210512460 A CN 201210512460A CN 103017939 B CN103017939 B CN 103017939B
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- 238000001514 detection method Methods 0.000 claims abstract description 52
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 20
- 229910052697 platinum Inorganic materials 0.000 claims description 10
- 238000012795 verification Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The invention relates to a novel temperature controller checking device which is characterized by comprising a detection power supply, wherein a first output end of the detection power supply is respectively connected with a second detection terminal (A2), a fourth detection terminal (A4), a sixth detection terminal (A6) and an eighth detection terminal (A8); and a second output end of the detection power supply is connected with an input end of a first change-over switch (Z1) through serially connected bells. Two output ends of the first change-over switch (Z1) are respectively connected with a first detection terminal (A1) and a third detection terminal (A3) through a first indication lamp (L1) and a second indication lamp (L2). The second output end of the detection power supply is further connected with an input end of a second change-over switch (Z2) through serially connected bells. Proved by trying, the novel temperature controller checking device greatly shortens the temperature controller checking time, is accurate and reliable in checking results, and accordingly effectively improves working efficiency.
Description
Technical field
The present invention relates to a kind of Novel Temperature Controller calibration equipment.
Background technology
In the transformer of temperature controller widespread use and electric system, be divided into oil surface temperature controller and winding temperature controller, its Main Function is just to provide temperature indication, control and transmitted signal.In the time that transformer temperature is high, send alerting signal, and start cooling system transformer is lowered the temperature, cannot lower the temperature or when cooling system failure, provide trip signal, action tripping operation, the safety of protection transformer.So temperature controller is carried out to verification, it is one of necessary means guaranteeing transformer equipment safe and stable operation.According to related request, temperature controller necessary verification in every 3 years once.
In practical work process, applicant finds that the verification of temperature controller exists a lot of difficulties: the first, set point verification mode is unreasonable; Need to use on the K node that the break-make shelves of multimeter are permanently connected at temperature controller, the buzzer that utilizes relay to connect, disconnect multimeter records the temperature temperature of set point.Do and waste time and energy like this, whole set point checking procedure at least continues more than 1 hour, and testing crew need stand in original place multimeter always and measure break-make, and the muscle power to people and energy are all great consumption.And often due to reasons such as site environment are noisy, set point has been connected, but do not hear multimeter buzzer, missed the time of recording test figure, set point verification is forced to repeat.The second, cannot check the quality of transmitter; Conventionally temperature controller dead electricity when main transformer maintenance, the transmitter of temperature controller cannot be exported the current signal of 4-20mA, so just cannot measure output current with multimeter, cannot check the quality of transmitter.Three, cannot check the linearity output situation of platinum resistance thermometer sensor, PT100; Normal conditions, we check when whether the resistance output of platinum resistance thermometer sensor, PT100 is accurate, just take out several calibration points and measure inspection, but after the long-time use of part platinum resistance thermometer sensor, PT100, it is unstable that output resistance becomes, originally linearity output becomes non-linear, makes the selective examination work of our routine can not accurately check out the quality of platinum resistance thermometer sensor, PT100.
Summary of the invention
The object of this invention is to provide a kind of check results accuracy Novel Temperature Controller calibration equipment high, easy to use.
A kind of Novel Temperature Controller calibration equipment, its special feature is: comprise detection power supply, the first output terminal of this detection power supply respectively with the second detection terminal, the 4th detection terminal, the 6th detection terminal is connected with the 8th detection terminal, the second output terminal of this detection power supply is connected with the input end of the first switch by the electric bell of series connection, two output terminals of this first switch are respectively by the first pilot lamp, the second pilot lamp connects the first detection terminal, the 3rd detection terminal, and the second output terminal that detects power supply is also connected with the input end of the second switch by the electric bell of series connection, two output terminals of this second switch are respectively by the 3rd pilot lamp, the 4th pilot lamp connects the 5th detection terminal, the 7th detection terminal.
Wherein also comprise resistor-type digital display meter, this resistor-type digital display meter is connected with three platinum resistance thermometer sensor, detection terminals respectively.
Wherein also comprise 24V direct supply, the positive pole of this 24V direct supply is connected with the first transmitters sense terminal, and the negative pole of this 24V direct supply is connected with the second transmitters sense terminal by current mode digital display meter.
Wherein detect power acquisition electric main, its first output terminal is live wire, and the second output terminal is zero line.
Through probationary certificate, adopt after Novel Temperature Controller calibration equipment of the present invention, the checking time of temperature controller is significantly shortened, but check results is accurately and reliably, thereby has effectively improved work efficiency.
Accompanying drawing explanation
Accompanying drawing 1 is circuit theory diagrams of the present invention.
Embodiment
As shown in Figure 1, the present invention is a kind of Novel Temperature Controller calibration equipment, comprise detection power supply, the first output terminal of this detection power supply respectively with the second detection terminal A2, the 4th detection terminal A4, the 6th detection terminal A6 is connected with the 8th detection terminal A8, the second output terminal of this detection power supply is connected with the input end of the first switch Z1 by the electric bell of series connection, two output terminals of this first switch Z1 are respectively by the first pilot lamp L1, the second pilot lamp L2 meets the first detection terminal A1, the 3rd detection terminal A3, and the second output terminal that detects power supply is also connected with the input end of the second switch Z2 by the electric bell of series connection, two output terminals of this second switch Z2 are respectively by the 3rd pilot lamp L3, the 4th pilot lamp L4 meets the 5th detection terminal A5, the 7th detection terminal A7.
Wherein also comprise resistor-type digital display meter, this resistor-type digital display meter is connected with three platinum resistance thermometer sensor, detection terminals (being terminal B1, terminal B2, terminal B3) respectively, and 24V direct supply, the positive pole of this 24V direct supply is connected with the first transmitters sense terminal C1, and the negative pole of this 24V direct supply is connected with the second transmitters sense terminal C2 by current mode digital display meter.Detect power supply and specifically can adopt electric main, its first output terminal is live wire, and the second output terminal is zero line.
Using method of the present invention is:
As shown in Figure 1, when use by four relay output end K1-K4 of the first detection terminal to the eight detection terminal A1-A8 jointing temp controllers, three platinum resistance thermometer sensor, detection terminals (being terminal B1, terminal B2, terminal B3) meet platinum resistance thermometer sensor, PT100, and the first transmitters sense terminal C1 and the second transmitters sense terminal C2 connect transmitter.Thereby can control the verification of the switching cooperation respective nodes of corresponding circuit by the first switch Z1 and the second switch Z2, electric bell and the first pilot lamp to the four pilot lamp L1-L4 are for reminding.
Claims (2)
1. a Novel Temperature Controller calibration equipment, is characterized in that: temperature controller comprises four relays, a platinum resistance thermometer sensor, and a transmitter, calibration equipment comprises detection power supply, resistor-type digital display meter, 24V direct supply and current mode digital display meter, the first output terminal of this detection power supply respectively with the second detection terminal (A2), the 4th detection terminal (A4), the 6th detection terminal (A6) is connected with the 8th detection terminal (A8), the second output terminal of this detection power supply is connected with the input end of the first switch (Z1) by the electric bell of series connection, in two output terminals of this first switch (Z1) one connects the first detection terminal (A1) by the first pilot lamp (L1), and another connects the 3rd detection terminal (A3) by the second pilot lamp (L2), and the second output terminal that detects power supply is also connected with the input end of the second switch (Z2) by the electric bell of series connection, in two output terminals of this second switch (Z2) one connects the 5th detection terminal (A5) by the 3rd pilot lamp (L3), and another connects the 7th detection terminal (A7) by the 4th pilot lamp (L4),
In the first to the 8th detection terminal successively take every two as one group, the output terminal of four relays of the temperature controller that is linked in sequence respectively;
Described resistor-type digital display meter is connected with three detection terminals of platinum resistance thermometer sensor, respectively;
The positive pole of described 24V direct supply is connected with transmitter the first detection terminal (C1), and the negative pole of this 24V direct supply is connected with transmitter the second detection terminal (C2) by current mode digital display meter.
2. a kind of Novel Temperature Controller calibration equipment as claimed in claim 1, is characterized in that: wherein detect power acquisition electric main, its first output terminal is live wire, and the second output terminal is zero line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210512460.3A CN103017939B (en) | 2012-12-05 | 2012-12-05 | Novel temperature controller checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210512460.3A CN103017939B (en) | 2012-12-05 | 2012-12-05 | Novel temperature controller checking device |
Publications (2)
| Publication Number | Publication Date |
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| CN103017939A CN103017939A (en) | 2013-04-03 |
| CN103017939B true CN103017939B (en) | 2014-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210512460.3A Expired - Fee Related CN103017939B (en) | 2012-12-05 | 2012-12-05 | Novel temperature controller checking device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776553B (en) * | 2014-02-17 | 2016-06-15 | 国家电网公司 | Transformator or reactor oil temperature detect and analog |
| CN106159481A (en) * | 2016-08-16 | 2016-11-23 | 国网天津市电力公司 | A kind of for the adapter between oil-filled transformer temperature controller and on-site cable outlet |
| CN107065827A (en) * | 2017-03-24 | 2017-08-18 | 国网福建省电力有限公司 | Digital three-phase temperature controller p-wire |
| CN108362402A (en) * | 2018-04-02 | 2018-08-03 | 广东电网有限责任公司 | A kind of winding temperature table copper oil temperature difference simulation test device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2695936Y (en) * | 2004-05-31 | 2005-04-27 | 孙立红 | Intelligent thermometer calibrater |
| US7669427B2 (en) * | 2006-06-14 | 2010-03-02 | Fluke Corporation | Temperature calibration device driving heating/cooling modules in a manner to allow operation over wide temperature range |
| CN101750172B (en) * | 2010-01-11 | 2011-11-16 | 重庆大学 | Device and method for detecting temperature characteristics of temperature sensor |
| CN202562655U (en) * | 2012-03-30 | 2012-11-28 | 辽宁省电力有限公司朝阳供电公司 | Automatic temperature calibration stand |
| CN202928723U (en) * | 2012-12-05 | 2013-05-08 | 宁夏电力公司检修公司 | Novel verification apparatus for temperature controller |
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- 2012-12-05 CN CN201210512460.3A patent/CN103017939B/en not_active Expired - Fee Related
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