CN205450238U - Novel current load case that is used for withstand voltage appearance calibration - Google Patents
Novel current load case that is used for withstand voltage appearance calibration Download PDFInfo
- Publication number
- CN205450238U CN205450238U CN201521105516.9U CN201521105516U CN205450238U CN 205450238 U CN205450238 U CN 205450238U CN 201521105516 U CN201521105516 U CN 201521105516U CN 205450238 U CN205450238 U CN 205450238U
- Authority
- CN
- China
- Prior art keywords
- resistance
- current loading
- binding post
- box body
- insulation board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model provides a novel current load case that is used for withstand voltage appearance calibration belongs to the measurement calibration field, include: box (1), resistance (2), insulation board (3), binding post (4), high -pressure shorting stub (5), ground terminal (6), pulley (7). This current load case not only can make things convenient for the regulating electrical resistance value, and restriction high voltage and can be through great puncture warning electric current has been solved the lower and resistance of the biggest breakdown current value that current current load case can calibrate and has been fixed, is difficult for adjusting the use very inconvenient scheduling problem that gets up.
Description
Technical field
This utility model relates to a kind of current loading case for voltage resistant instrument calibration, belongs to measurement and calibration field.
Background technology
The current loading case of voltage resistant instrument calibration is generally used in the test loop that proof voltage tester punctures alarm current calibration, plays adjustment, the high-tension effect in limit assay loop.Along with electric equipment products constantly toward the development in high voltage direction, the alarm current value that punctures of proof voltage tester the most constantly raises, in known technology, the magnitude of voltage that existing current loading case can limit is relatively low (600V), it is relatively low that the maximum that proof voltage calibrating installation can be calibrated punctures alarm current value, can not meet the demand in metering market.And the start voltage of many high pressure pressure-resistant equipments just reaches about 1kV, the most also proposing to limit this high-tension requirement to current loading case, the resistance of the most existing current loading case is fixed, and is difficult to adjust, uses very inconvenient.Therefore for some drawbacks of existing load box, it is overcome one by one by this utility model by appropriate design, and the current loading case designed can not only facilitate adjusting resistance value, limits high voltage and can pass through to puncture more greatly alarm current.The relevant technology contents that a kind of novel current loading case for voltage resistant instrument calibration described in the utility model described further below is involved in implementation process.
Utility model content
The purpose of this utility model is to fix for the current loading case resistance being currently used for voltage resistant instrument calibration, it is difficult to adjust, and magnitude of voltage these problems relatively low that can limit and provide one can conveniently adjust resistance value, limit high voltage, by puncturing more greatly the current loading case in voltage resistant instrument is calibrated of alarm current.
For realizing object above, the technical solution of the utility model is: a kind of current loading case for voltage resistant instrument calibration, it is provided with: casing (1), resistance (2), insulation board (3), binding post (4), high pressure shorting stub (5), ground terminal (6), pulley (7), resistance (2) is fixedly mounted on insulation board (3), the resistance (2) of outer end is connected to binding post (4) respectively, by the requirement of resistance value during test in outside by resistance (2) serial or parallel connection.
All there are air duct slats, convenient heat radiation in (1) 6 surface of casing.
Resistance (2) is high-power resistor, resistance (2) resistance is 1k Ω, it is 1kw that maximum bears power, resistance (2) is separately fixed on 4 layers of insulation board (3), on every layer of insulation board, (3) fix 5 resistance (2), 5 resistance (2) are cascaded, and outer end resistance (2) is connected on (4) on binding post respectively.
Insulation board (3) long 700mm, wide 550mm, thick 8mm, insulation board (3) totally 4 pieces be separately fixed in current loading box body (1), on every layer of insulation board, (3) fix 5 resistance (2).
Binding post (4) is respectively totally 5, A end, B end, C end, D end, E end, two nuts and two pads it are furnished with on each binding post (4), for fixing wire, being furnished with high pressure shorting stub (5) between binding post, 5 binding posts (4) select wherein 2 switchings that can realize different resistance flexibly.
High pressure shorting stub (5) is used for coupling binding post (4), facilitates adjusting resistance value.
Ground terminal (6) is positioned on current loading box body (1) and is used for connecting the earth, plays the effect of safeguard protection.
Totally 4, pulley (7), lays respectively at four corners in current loading box body (1) lower section, pulley (7) diameter 100mm, energy locking, and flexible for current loading box body (1) is moved.
Owing to this utility model has been designed with such scheme, the resistance efficiently solving existing current loading case is fixed, and is difficult to adjust, and the magnitude of voltage that can limit is relatively low, uses the problems such as very inconvenient.
Accompanying drawing explanation
Fig. 1 is axonometric chart of the present utility model.
Fig. 2 is 5 series resistances (2) being fixed on insulation board (3) in casing of the present utility model (1).
Fig. 3 is casing of the present utility model (1) internal circuit schematic diagram.
Fig. 4 is the schematic diagram of this utility model embodiment.
Detailed description of the invention
Below by way of specific instantiation, detailed description of the invention of the present utility model is described.
The schematic diagram of this utility model embodiment, as shown in Figure 4.
When carrying out voltage resistant instrument and puncturing alarm current calibration, voltage resistant instrument voltage positive and negative terminal is connected with 2 terminals selected in this current loading case binding post (4) respectively, and the access circuit tester 8845A that connects between voltage resistant instrument with current loading case, and circuit tester 8845A is arranged on current gear.Set voltage resistant instrument puncture alarm current value and constantly raise the voltage of voltage resistant instrument, read by circuit tester 8845A when puncturing alarm current value and arriving setting value and puncture alarm current value.
This experiment is the resistance value of energy flexible current loading case in actual voltage resistant instrument punctures alarm current calibration, limits high voltage, by puncturing more greatly alarm current, meets existing voltage resistant instrument and puncture the measurement and calibration of alarm current.
Above by specific instantiation, detailed description of the invention of the present utility model is described.Those skilled in the art can be will readily appreciate that advantage of the present utility model and effect by the content disclosed in description.This utility model also can be carried out by other different embodiments or apply the every details in this specification can also substantially different viewpoint and application, under without departing substantially from spirit of the present utility model, carry out various modification and change.
Claims (8)
1. the novel current loading case for voltage resistant instrument calibration, it is characterised in that including:
Current loading box body (1)；
Resistance (2)；
Insulation board (3)；
Binding post (4)；
High pressure shorting stub (5)；
Ground terminal (6)；
Pulley (7)；
nullInsulation board (3) totally 4 pieces be separately fixed at current loading box body (1) in，5 resistance (2) are fixed on every layer of insulation board (3)，5 resistance (2) are cascaded，Outer end resistance (2) is connected on binding post (4) respectively，By the requirement of resistance value during test in outside by resistance (2) serial or parallel connection，Binding post (4) is respectively A end、B end、C end、D end、Totally 5, E end，Two nuts and two pads it are furnished with on each binding post (4)，For fixing wire，High pressure shorting stub (5) it is furnished with between binding post，5 binding posts (4) select wherein 2 switchings that can realize different resistance flexibly，Ground terminal (6) is positioned on current loading box body (1) and is used for connecting the earth，Totally 4, pulley (7)，Lay respectively at four corners in current loading box body (1) lower section，Flexible for current loading box body (1) is moved.
A kind of novel current loading case for voltage resistant instrument calibration the most according to claim 1, it is characterized in that, described current loading box body (1) is made up of iron sheet, casing (1) a length of 725mm, a width of 575mm, a height of 800mm, (1) 6 surface of casing is equipped with air duct slats, convenient heat radiation.
A kind of novel current loading case for voltage resistant instrument calibration the most according to claim 1, it is characterized in that, described resistance (2) is high-power resistor, resistance (2) resistance is 1k Ω, it is 1kw that maximum bears power, resistance (2) is separately fixed on 4 layers of insulation board (3), 5 resistance (2) are fixed on every layer of insulation board (3), 5 resistance (2) are cascaded, and outer end resistance (2) is connected on binding post (4) respectively.
A kind of novel current loading case for voltage resistant instrument calibration the most according to claim 1, it is characterized in that, described insulation board (3) long 700mm, wide 550mm thickness 8mm, insulation board (3) totally 4 pieces be separately fixed at current loading box body (1) in, every layer of insulation board (3) is fixed 5 resistance (2).
A kind of novel current loading case for voltage resistant instrument calibration the most according to claim 1, it is characterized in that, described binding post (4) is respectively totally 5, A end, B end, C end, D end, E end, two nuts and two pads it are furnished with on each binding post (4), for fixing wire, being furnished with high pressure shorting stub (5) between binding post, 5 binding posts (4) select wherein 2 switchings that can realize different resistance flexibly.
A kind of novel current loading case for voltage resistant instrument calibration the most according to claim 1, it is characterised in that described high pressure shorting stub (5) is used for coupling binding post (4), facilitates adjusting resistance value.
A kind of novel current loading case for voltage resistant instrument calibration the most according to claim 1, it is characterised in that described ground terminal (6) is positioned on current loading box body (1) and is used for connecting the earth, plays the effect of safeguard protection.
A kind of novel current loading case for voltage resistant instrument calibration the most according to claim 1, it is characterized in that, totally 4, described pulley (7), lay respectively at four corners in current loading box body (1) lower section, pulley (7) diameter 100mm, energy locking, flexible for current loading box body (1) is moved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521105516.9U CN205450238U (en) | 2015-12-23 | 2015-12-23 | Novel current load case that is used for withstand voltage appearance calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521105516.9U CN205450238U (en) | 2015-12-23 | 2015-12-23 | Novel current load case that is used for withstand voltage appearance calibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205450238U true CN205450238U (en) | 2016-08-10 |
Family
ID=56579014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521105516.9U Active CN205450238U (en) | 2015-12-23 | 2015-12-23 | Novel current load case that is used for withstand voltage appearance calibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205450238U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398706A (en) * | 2019-08-21 | 2019-11-01 | 广州赛宝计量检测中心服务有限公司 | A kind of calibration system and its calibration method of proof voltage tester breakdown alarm preset current |
-
2015
- 2015-12-23 CN CN201521105516.9U patent/CN205450238U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398706A (en) * | 2019-08-21 | 2019-11-01 | 广州赛宝计量检测中心服务有限公司 | A kind of calibration system and its calibration method of proof voltage tester breakdown alarm preset current |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102998506B (en) | Sensor devices and methods for use in sensing current through a conductor | |
| CN205450238U (en) | Novel current load case that is used for withstand voltage appearance calibration | |
| CN208172081U (en) | A kind of open-close type outdoor mutual inductor | |
| CN207232292U (en) | Monitor the device and Surge Protector intelligent socket of resistive leakage current and surge current | |
| CN203798883U (en) | Micro-current high-precision resistor type voltage dividing device | |
| CN203849330U (en) | DC (direct current) resistance measuring instrument for AC (alternating current) loop | |
| CN206293979U (en) | Electronic equipment | |
| CN108828287A (en) | It is a kind of for measure traverse line electric current, voltage, temperature open-close type mutual inductor | |
| CN201498349U (en) | Secondary load box of voltage mutual inductor for metering high voltage | |
| CN103618319A (en) | Reactive compensation cabinet | |
| CN204558174U (en) | The noninductive thread resistance unit of a kind of array | |
| CN207263817U (en) | A kind of open type Rogowski coil | |
| CN207036963U (en) | A kind of teaching mode for being used to measure liquid resistance size | |
| CN203349959U (en) | Converter transformer winding temperature measuring device | |
| CN207502662U (en) | A kind of pressure resistant testing device for the equipment with video interface | |
| CN206945879U (en) | A kind of equipment switching test device | |
| CN209728024U (en) | Secondary voltage exports the adjustable resistive-capacitive voltage divider sensor of angular difference | |
| EP2162946A1 (en) | Measurement arrangement for measuring a temperature of a rechargeable power supply device | |
| CN105448453A (en) | Rogowski coil based on coaxial cable framework | |
| CN106777610B (en) | Oil-immersed transformer oil-paper resistivity inversion method based on Newton-Raphson approach | |
| CN205944467U (en) | Binding post with current -voltage conversion functions | |
| CN209216672U (en) | A kind of wire wound resistor | |
| CN202471947U (en) | General electrodeless automatic adjustment current transformer secondary load box | |
| CN208689134U (en) | It is a kind of for testing the device of insulation tube vertical breakdown field strength electrode | |
| CN205564441U (en) | Resistance for experiments |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |