CN209625050U - A kind of npp safety grade DCS relay resistance value automatic testing tool - Google Patents
A kind of npp safety grade DCS relay resistance value automatic testing tool Download PDFInfo
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- CN209625050U CN209625050U CN201920849858.3U CN201920849858U CN209625050U CN 209625050 U CN209625050 U CN 209625050U CN 201920849858 U CN201920849858 U CN 201920849858U CN 209625050 U CN209625050 U CN 209625050U
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Abstract
The utility model discloses a kind of npp safety grade DCS relay resistance value automatic testing tool, test cell is mounted on pcb board；Pedestal is connect by base for supplying power route with measurement module；Base for supplying power route includes excitation wires and measurement circuit, field switch is arranged on excitation wires, and measurement module passes through the coil power supply of excitation wires relay on pedestal；One end of contact selection switch is connected to measurement module, and the other end of contact selection switch switches between relay difference pin on pedestal.A kind of the utility model npp safety grade DCS relay resistance value automatic testing tool, can simultaneously the multiple relays of excitation, and all components are integrated on a pcb board, multiple sockets for relay installation are provided, by field switch, complete the excitation to relay, use built-in resistance test module, the resistance value of measuring relay auxiliary contact, there is no short circuit and mis-wired risk, efficiency is very high.
Description
Technical field
The utility model relates to nuclear power the field of test technology, and in particular to a kind of npp safety grade DCS relay
Automatic testing tool.
Background technique
Relay is as common control output equipment, in use, situations such as oxidation there are contact aging, nuclear power
It stands in O&M, resistance value measurement selectively can be carried out to important relay, be normally off the downstream wiring of the relay,
To multiple relays, forced excitation is acted one by one, measures resistance value using devices such as multimeters, and efficiency is lower, and be there is short circuit, missed
The risk of wiring.
Utility model content
Technical problem to be solved in the utility model is in the prior art, to carry out detection to relay and imitate by the way of
Rate is lower, and exist short circuit, mis-wired risk, and it is an object of the present invention to provide a kind of npp safety grade DCS with relay resistance value from
Dynamic test fixture, solves the above problems.
The utility model is achieved through the following technical solutions:
A kind of npp safety grade DCS relay resistance value automatic testing tool, including pcb board and multiple test cells；
The test cell is mounted on pcb board；Each test cell includes pedestal, contact selection switch, field switch and survey
Measure module；The pedestal is connect by base for supplying power route with measurement module；The base for supplying power route include excitation wires and
Field switch is arranged on the excitation wires for measurement circuit, and measurement module passes through the line of excitation wires relay on pedestal
Circle power supply；One end of the contact selection switch is connected to measurement module, and the other end of the contact selection switch is on pedestal
It is switched between relay difference pin；The measurement module is powered by measurement circuit to the contact of relay, and is measured
The resistance of relay contact.
The utility model is in application, carrying out in use, staff removes relay from equipment, and is installed to bottom
On seat, by measurement module and excitation wires to coil power supply, at this point, the power pack of measurement module, excitation wires, excitation are opened
It closes and relay coil just constitutes a complete energized circuit；And the measurement part of measurement module, measurement circuit, contact choosing
The contact for selecting switch and relay just constitutes a complete measurement circuit.
For energized circuit, it can according to need and field switch is opened or is closed, to detect normally-closed contact
Or the resistance value of normally opened contact, and for measurement circuit for, can by contact select switch by between different contacts into
Row switching, such as switching normally-closed contact, normally opened contact or auxiliary contact, can be to all by the work of contact selection switch
It is detected contact.
In general the measurement module in the utility model needs to have following functions:
1, resistance measurement；
2, relay excitation is powered；
3, display screen drives.
For first point, resistance measurement can be measured indirectly by the way of voltage and current detection, this category
In technology existing in the prior art；For second point, the excitation of relay is driven, it is only necessary to on relay coil
Electricity can be realized, and also belong to the prior art for the driving of display screen, so the measurement module in the utility model can be excellent
It is selected as the multifunctional measuring module of NASPIC platform development, the mould with correlation function in measurement general field also can be used
Block.
The utility model realizes the quick detection to relay in nuclear power plant's DCS system by setting above equipment, can
The multiple relays of excitation simultaneously, and all components are integrated on a pcb board, multiple inserting for relay installation are provided
Mouthful, by field switch, complete to use built-in resistance test module, measuring relay auxiliary contact to the excitation of relay
Resistance value, there is no short circuit and mis-wired risks, and efficiency is very high.
It further, further include power module, the power module is installed on pcb board and is electrically connected to all tests
Unit；220V alternating current is converted to direct current used in measuring unit by the power module.
The utility model is in application, in order to further realize integration of equipments, power module is also mounted at PCB by inventor
On plate, it is an AC/DC module that this power module is practical, power module by 220VAC be converted into can voltage supplied direct current,
Such as 20VDC, it is not necessarily to individual DC power supply, it is convenient to use at the scene.
It further, further include power switch, the power switch is set on pcb board, and the power switch is electrically connected
It is connected to power module, and controls the power supply of power module.
For the utility model in application, controlling for convenience power module, inventor is provided with one on pcb board
Power switch, and the power supply of power module being controlled by power switch, set-up mode can there are many kinds of, can be straight
It connects and is arranged between power module and supply port, can also be directly attached with the switch pin on power module.
It further, further include power supply indicator, the power supply indicator is set on pcb board, and the power supply instruction
Lamp is electrically connected to power module and indicates power module working condition.
The utility model is in application, power supply indicator can indicate the working condition of power module, so that it is guaranteed that detection knot
The accuracy of fruit, power supply indicator can use light emitting diode or multiple light emitting diodes, when power module breaks down
When, the level on power supply indicator changes, and then light emitting diode is caused to change, and refers to provide to staff
Show.
Further, direct current used in the measuring unit uses 20~30V direct current.
Further, the measuring unit further includes the display module for being installed on pcb board；The display module will measure mould
The resistance value of block measurement is shown.
The utility model is provided with display module on pcb board, shows in application, for the ease of staff's reading resistance value
Show that module shows the data that measurement module exports, different display modules can be used for different measurement modules,
Such as LED, OLED, LCD, it is only necessary to which the driving that measurement module has these display modules can realize whole process.
Further, the socket to match with relay is provided on the pedestal, the relay is installed by socket
In on pedestal.
Further, the measurement module uses electric current measuring equipment.
The utility model is in application, the measurement part mentioned here for referring to measurement module itself using electric current measuring equipment
Using electric current measuring equipment, the available more accurately resistance value of electric current measuring equipment.
Further, the contact selection switch, measurement module, measurement circuit and relay contact constitute measurement circuit,
The measurement module measures the resistance value of relay contact by the current or voltage in measurement measurement circuit.
The utility model is selected by contact in application, test loop itself can complete the measurement of relay contact resistance value
Switch is selected different contacts is selected can effectively to improve measuring point detection efficiency.
Further, it is attached between each device by the etching cabling on pcb board in the test cell.
The utility model, can be effective in application, by being attached to the cabling etched on pcb board to these devices
Raising the utility model integrated level, it is easy to carry and use.
The utility model compared with prior art, has the following advantages and benefits:
The utility model a kind of npp safety grade DCS relay resistance value automatic testing tool, by the way that above-mentioned set is arranged
It is standby, realize the quick detection to relay in nuclear power plant's DCS system, can multiple relays of excitation simultaneously, and by all first devices
Part is integrated on a pcb board, provides multiple sockets for relay installation, by field switch, is completed to relay
Excitation, using built-in resistance test module, the resistance value of measuring relay auxiliary contact, there is no short circuit and mis-wired wind
Danger, efficiency are very high.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:
FIG. 1 is a schematic structural view of the utility model.
Specific embodiment
It hereinafter, can the term " includes " used in the various embodiments of the utility model or " may include " instruction institute
Function, operation or the presence of element of utility model, and the increase of one or more functions, operation or element is not limited.
In addition, term " includes ", " having " and its cognate are meant only to indicate as used in the various embodiments of the utility model
Special characteristic, number, step, operation, the combination of element, component or aforementioned item, and be understood not to exclude one first
Or more other feature, number, step, operation, element, component or aforementioned item combined presence or increase one or more
A feature, number, step, operation, element, component or aforementioned item combination a possibility that.
In the various embodiments of the utility model, states "or" or " at least one of A or/and B " includes while arranging
Any combination of text out or all combinations.For example, statement " A or B " or " at least one of A or/and B " may include A, can
It including B or may include A and B both.
The statement (" first ", " second " etc.) used in the various embodiments of the utility model can be modified various
Various constituent element in embodiment, but respective sets can not be limited into element.For example, the above statement is not intended to limit the element
Sequence and/or importance.The above statement is only used for the purpose for differentiating an element and other elements.For example, first uses
Family device and second user device indicate different user device, although the two is all user apparatus.For example, practical not departing from
In the case where the range of novel various embodiments, first element is referred to alternatively as second element, and similarly, second element can also quilt
Referred to as first element.
It should also be noted that if a constituent element ' attach ' to another constituent element by description, it can be by the first composition member
Part is directly connected to the second constituent element, and " connection " third can form between the first constituent element and the second constituent element
Element.On the contrary, when a constituent element " being directly connected to " is arrived another constituent element, it will be appreciated that in the first constituent element
And second third constituent element is not present between constituent element.
The term used in the various embodiments of the utility model is used only for the purpose of describing specific embodiments and simultaneously
It is not intended to the various embodiments of limitation the utility model.As used herein, singular is intended to also include plural form, unless
Context is expressly otherwise indicated.Unless otherwise defined, otherwise all terms used herein (including technical term and science
Term) there is contain identical with the various normally understood meanings of embodiment one skilled in the art of the utility model
Justice.The term (term such as limited in the dictionary generally used) be to be interpreted as have in the related technical field
The identical meaning of situational meaning and Utopian meaning or meaning too formal will be interpreted as having, unless this
It is clearly defined in the various embodiments of utility model.
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment
As shown in Figure 1, a kind of the utility model npp safety grade DCS relay resistance value automatic testing tool, including
Pcb board and multiple test cells；The test cell is mounted on pcb board；Each test cell includes pedestal, contact choosing
Select switch, field switch and measurement module；The pedestal is connect by base for supplying power route with measurement module；The base for supplying power
Route includes excitation wires and measurement circuit, field switch is arranged on the excitation wires, and measurement module passes through excitation wires
The coil power supply of relay on pedestal；One end of the contact selection switch is connected to measurement module, and the contact selection is opened
The other end of pass switches between relay difference pin on pedestal；The measurement module passes through measurement circuit to relay
Contact power supply, and the resistance of measuring relay contact.
When the present embodiment is implemented, carrying out in use, staff removes relay from equipment, and is installed to pedestal
On, by measurement module and excitation wires to coil power supply, at this point, the power pack of measurement module, excitation wires, field switch
A complete energized circuit is just constituted with relay coil；And the measurement part of measurement module, measurement circuit, contact selection
The contact of switch and relay just constitutes a complete measurement circuit.
For energized circuit, it can according to need and field switch is opened or is closed, to detect normally-closed contact
Or the resistance value of normally opened contact, and for measurement circuit for, can by contact select switch by between different contacts into
Row switching, such as switching normally-closed contact, normally opened contact or auxiliary contact, can be to all by the work of contact selection switch
It is detected contact.
In general the measurement module in the utility model needs to have following functions:
1, resistance measurement；
2, relay excitation is powered；
3, display screen drives.
For first point, resistance measurement can be measured indirectly by the way of voltage and current detection, this category
In technology existing in the prior art；For second point, the excitation of relay is driven, it is only necessary to on relay coil
Electricity can be realized, and also belong to the prior art for the driving of display screen, so the measurement module in the utility model can be excellent
It is selected as the multifunctional measuring module of NASPIC platform development, the mould with correlation function in measurement general field also can be used
Block.
The utility model realizes the quick detection to relay in nuclear power plant's DCS system by setting above equipment, can
The multiple relays of excitation simultaneously, and all components are integrated on a pcb board, multiple inserting for relay installation are provided
Mouthful, by field switch, complete to use built-in resistance test module, measuring relay auxiliary contact to the excitation of relay
Resistance value, there is no short circuit and mis-wired risks, and efficiency is very high.
In order to further realize the power supply of the present embodiment, the present embodiment further includes power module, the power module peace
Loaded on pcb board and being electrically connected to all test cells；220V alternating current is converted to measuring unit institute by the power module
The direct current used.
When the present embodiment is implemented, in order to further realize integration of equipments, power module is also mounted at pcb board by inventor
On, it is an AC/DC module that this power module is practical, power module by 220VAC be converted into can voltage supplied direct current, example
Such as 20VDC, it is not necessarily to individual DC power supply, it is convenient to use at the scene.
In order to further realize that the power supply control of the present embodiment, the present embodiment further include power switch, the power supply is opened
Pass is set on pcb board, and the power switch is electrically connected to power module, and controls the power supply of power module.
When the present embodiment is implemented, power module is controlled for convenience, inventor is provided with an electricity on pcb board
Source switch, and the power supply of power module being controlled by power switch, set-up mode can there are many kinds of, can be directly
It is arranged between power module and supply port, can also be directly attached with the switch pin on power module.
It further include power supply indicator to further realize the power supply monitoring of the present embodiment, the power supply indicator is set
It is placed on pcb board, and the power supply indicator is electrically connected to power module and indicates power module working condition.
When the present embodiment is implemented, power supply indicator can indicate the working condition of power module, so that it is guaranteed that testing result
Accuracy, power supply indicator can use light emitting diode or multiple light emitting diodes, when power module break down when,
Level on power supply indicator changes, and then light emitting diode is caused to change, to provide instruction to staff.
In order to further realize the power supply of the present embodiment, direct current used in the measuring unit uses 20~30V
Direct current.It can further be preferably 24V.
In order to further realize that the display function of the present embodiment, the measuring unit further include being installed on showing for pcb board
Show module；The display module shows the resistance value that measurement module measures.
When the present embodiment is implemented, resistance value is read for the ease of staff, display module, display are provided on pcb board
Module shows the data that measurement module exports, and can use different display modules for different measurement modules, such as
LED, OLED, LCD etc., it is only necessary to which the driving that measurement module has these display modules can realize whole process.
In order to further realize the installation function of the present embodiment, it is provided on the pedestal and is inserted with what relay matched
Mouthful, the relay is mounted on the base by socket.
In order to further realize the measurement function of the present embodiment, the measurement module uses electric current measuring equipment.
It is mentioned here to refer to that the measurement part of measurement module itself is adopted using electric current measuring equipment when the present embodiment is implemented
With galvanometer amount equipment, the available more accurately resistance value of electric current measuring equipment.
In order to further realize the measurement function of the present embodiment, the contact selects switch, measurement module, measurement circuit
Measurement circuit is constituted with relay contact, the measurement module touches relay by the current or voltage in measurement measurement circuit
The resistance value of point measures.
When the present embodiment is implemented, test loop itself can complete the measurement of relay contact resistance value, be selected by contact
Switch selects different contacts can effectively improve measuring point detection efficiency.
In order to further realize the integrated functionality of the present embodiment, pass through PCB between each device in the test cell
Etching cabling on plate is attached.
It, can be effective by being attached to the cabling etched on pcb board to these devices when the present embodiment is implemented
The integrated level of the utility model is improved, it is easy to carry and use.
As shown in Figure 1, being exemplified below in order to which further the course of work of the present embodiment is described:
Power module uses ac-dc switching power module, 220VAC alternating current can be converted to 24VDC, without individual
DC power supply, it is convenient to use at the scene；
Power switch is used to control the power supply of power module；One power supply indicator is used to indicate power module work shape
State.
4 relay bases, the pedestal support relay selected by certain type npp safety grade DCS system to install, and lead to
Cross PCB circuit and switching switch connection；4 field switches, for controlling the excitation of 4 relays；4 switching selection switch,
For handover measurement relay auxiliary contact；Design 4 display panels simultaneously, receive the signal of test device, show it is each after
Electric appliance resistance value.
Built-in 4 independent measurement modules are connect using connecting line with interface preset on PCB, to relay base into
Row power supply；The connection with contact is realized by the connection with selection switch；It is connect by interconnector with display screen.
It, need to be to 4 in certain single subgroup of type safety level DCS system when factory testing personnel or nuclear power plant's operation maintenance personnel
When relay carries out routine inspection or malfunction elimination, 4 relays can be removed from cabinet, be mounted on this test fixture.
By in test job connection at the scene 220VAC power supply, power switch on panel is closed, confirmation power supply indicator is bright,
Indicate that power module is working properly.
The corresponding selection switch of switching, measures normally-closed contact resistance value, records display screen numerical value, after being measured, closure is encouraged
Magnetic switch, then switch corresponding selection switch, measure normally opened contact resistance value.
It is such as without exception after measurement, relay is returned and is filled to original position.
In all examples being illustrated and described herein, any occurrence should be construed as merely illustratively, without
It is as limitation, therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of npp safety grade DCS relay resistance value automatic testing tool, which is characterized in that including pcb board and multiple
Test cell；The test cell is mounted on pcb board；
Each test cell includes pedestal, contact selection switch, field switch and measurement module；The pedestal is supplied by pedestal
Electric line is connect with measurement module；The base for supplying power route includes excitation wires and measurement circuit, is set on the excitation wires
Field switch is set, and measurement module passes through the coil power supply of excitation wires relay on pedestal；The contact selection switch
One end is connected to measurement module, and the other end of the contact selection switch is cut between relay difference pin on pedestal
It changes；The measurement module is powered by measurement circuit to the contact of relay, and the resistance of measuring relay contact.
2. a kind of npp safety grade DCS relay resistance value automatic testing tool according to claim 1, feature exist
In further including power module, the power module is installed on pcb board and is electrically connected to all test cells；The power supply
220V alternating current is converted to direct current used in measuring unit by module.
3. a kind of npp safety grade DCS relay resistance value automatic testing tool according to claim 2, feature exist
In, it further include power switch, the power switch is set on pcb board, and the power switch is electrically connected to power module, and
Control the power supply of power module.
4. a kind of npp safety grade DCS relay resistance value automatic testing tool according to claim 2, feature exist
In further including power supply indicator, the power supply indicator is set on pcb board, and the power supply indicator is electrically connected to power supply
Module simultaneously indicates power module working condition.
5. a kind of npp safety grade DCS relay resistance value automatic testing tool according to claim 2, feature exist
In direct current used in the measuring unit uses 20~30V direct current.
6. a kind of npp safety grade DCS relay resistance value automatic testing tool according to claim 1, feature exist
In the measuring unit further includes the display module for being installed on pcb board；The resistance value that the display module measures measurement module
It is shown.
7. a kind of npp safety grade DCS relay resistance value automatic testing tool according to claim 1, feature exist
In being provided with the socket to match with relay on the pedestal, the relay is mounted on the base by socket.
8. a kind of npp safety grade DCS relay resistance value automatic testing tool according to claim 1, feature exist
In the measurement module uses electric current measuring equipment.
9. a kind of npp safety grade DCS relay resistance value automatic testing tool according to claim 1, feature exist
In the contact selection switch, measurement module, measurement circuit and relay contact constitute measurement circuit, and the measurement module is logical
The current or voltage crossed in measurement measurement circuit measures the resistance value of relay contact.
10. a kind of npp safety grade DCS described in any one is tested automatically with relay resistance value according to claim 1~9
Tooling, which is characterized in that be attached between each device by the etching cabling on pcb board in the test cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920849858.3U CN209625050U (en) | 2019-06-05 | 2019-06-05 | A kind of npp safety grade DCS relay resistance value automatic testing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920849858.3U CN209625050U (en) | 2019-06-05 | 2019-06-05 | A kind of npp safety grade DCS relay resistance value automatic testing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209625050U true CN209625050U (en) | 2019-11-12 |
Family
ID=68443419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920849858.3U Active CN209625050U (en) | 2019-06-05 | 2019-06-05 | A kind of npp safety grade DCS relay resistance value automatic testing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209625050U (en) |
-
2019
- 2019-06-05 CN CN201920849858.3U patent/CN209625050U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201217 Address after: No.3, Hongda South Road, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee after: CHINA NUCLEAR CONTROL SYSTEM ENGINEERING Co.,Ltd. Address before: 610000, No. three, 28 south section of Ring Road, Chengdu, Sichuan Patentee before: NUCLEAR POWER INSTITUTE OF CHINA |
|
| TR01 | Transfer of patent right |