CN205749738U - Portable microcomputer busbar protective device tester - Google Patents
Portable microcomputer busbar protective device tester Download PDFInfo
- Publication number
- CN205749738U CN205749738U CN201620616744.0U CN201620616744U CN205749738U CN 205749738 U CN205749738 U CN 205749738U CN 201620616744 U CN201620616744 U CN 201620616744U CN 205749738 U CN205749738 U CN 205749738U
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- Prior art keywords
- mother
- bus
- relay
- branch road
- malfunctioning
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- 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.)
- Withdrawn - After Issue
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- 230000001681 protective effect Effects 0.000 title claims abstract description 41
- 230000004224 protection Effects 0.000 claims abstract description 37
- 238000010586 diagram Methods 0.000 claims abstract description 13
- 239000000523 sample Substances 0.000 claims description 27
- 230000005611 electricity Effects 0.000 claims description 6
- 238000012360 testing method Methods 0.000 abstract description 13
- 238000007689 inspection Methods 0.000 description 8
- 208000008454 Hyperhidrosis Diseases 0.000 description 4
- 230000037315 hyperhidrosis Effects 0.000 description 4
- 238000012795 verification Methods 0.000 description 3
- 230000009191 jumping Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003278 mimic effect Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Abstract
This utility model relates to the test device of a kind of PC bus protection device, a kind of portable microcomputer busbar protective device tester.The on and off switch that including housing, is arranged on housing front panel, bus branch road display floater, involution button, display lamp group, it is provided with bus wiring diagram on bus branch road display floater, bus wiring diagram is embedded with branch road disconnecting link position displaying lamp, branch road disconnecting link position rotary switch and bus position rotary switch；Being provided with circuit board in housing, described circuit board, by opening entry loop and outlet loop forms, is opened entry loop and is included disconnecting link position to open into branch road, mother opening into branch road and malfunctioning open into branch road.Its easy to use, perfect in shape and function, carry out bus protection test time, open into and outlet action situation very clear, be greatly improved bus protection testing efficiency.
Description
Technical field
This utility model relates to the test device of a kind of PC bus protection device, a kind of portable microcomputer
Busbar protective device tester, be mainly used in that transformer station is newly-built, in extension project to new upper PC bus protection device debugging,
Or when to be that maintainer is daily carry out busbar protective device regular inspection, improve busbar protective device testing efficiency and accuracy.
Background technology
PC bus protection device is the important component part of relay protection of power system, and its normal work is to safeguarding electricity
Net safety and stability is most important, new upper or operation busbar protective device need to be carried out the strictest tune for this secondary maintainer
Examination.But due to the reason that the duration is tight or bus power off time is short, the debugging time leaving maintainer for is short, the most quick and precisely adjusts
Examination busbar protective device has become an important topic.
Busbar protective device configuration feature is many at present (typically configures bus differential protection, breaker fail protection, mother charger
Protect, bus tie dead zone protection, mother failure protection and mother overcurrent protection etc.), debugging work load is big.Need during debugging to carry out
Disconnecting link position, malfunctioning opening jump all kinds of intake inspections such as position, mother charging, owing to bus branch road is many, intake inspection into, mother
Intricate operation.Additionally, most protection act debugging efforts need artificial cooperation to add intake to device, these intakes need with
Relay protection check instrument with the use of, careless slightly can put wrong intake cause protecting accordingly can not correct operation, the most accurately
Add intake most important.Can only check one by one from the intake information of protection device during debugging now adding apparatus open into
Amount is the most correct, operation complexity, and can not intuitively show intake state.
Additionally, the most traditional busbar protective device action outlet method of testing is to use circuit tester to measure protection exit electricity
Position.The defect of this detection method is: export the instantaneous positive potential pulse persistent period sent during busbar protective device action
Short, and partly protect dissimilar way outlet time delay there are differences, and then the method that traditional measurement outlet current potential may be caused
Not accurate enough.Additionally, busbar protective device setting branch road quantity is many, use circuit tester can only measure outlet current potential one by one, test
Intricate operation, and can not intuitively show the concrete action situation of each branch road of bus protection.
Summary of the invention
The purpose of this utility model is to provide a kind of perfect in shape and function, easy to use, configures in busbar protective device
All kinds of protections when debugging, can intuitively show open into and outlet action situation, improve busbar protective device measuring accuracy
And the portable microcomputer busbar protective device tester of efficiency.
In order to reach object above, this utility model be the technical scheme is that this portable microcomputer bus protection fills
Put tester, the on and off switch that including housing, is arranged on housing front panel, bus branch road display floater, involution button, outlet
Display lamp group, malfunctioning open into Push-button lamp group, described bus branch road display floater is provided with bus wiring diagram, described bus wiring
Branch road disconnecting link position displaying lamp, branch road disconnecting link position rotary switch and bus position rotary switch it is embedded with on figure；Institute
Being provided with circuit board in stating housing, described circuit board, by opening entry loop and outlet loop forms, is opened entry loop and is included disconnecting link position
Open and open into branch road into branch road, mother and malfunctioning open into branch road.
Described disconnecting link position is opened and is included disconnecting link position rotary switch, auxiliary reclay, disconnecting link position displaying lamp into branch road, open
Enter probe, the coil of described auxiliary reclay and disconnecting link position rotary switch control circuit in series；Described auxiliary reclay
At least having two groups of normally opened contacts, one of which contact and disconnecting link position displaying lamp indicating circuit in series, another organizes contact
One end connect positive source another termination open in probe for connect busbar protective device disconnecting link open into terminal；Described control electricity
It is connected to the two ends of power supply by and off switch after road is in parallel with indicating circuit；
Described mother is opened and is included that bus position rotary switch, bus jump position display lamp, mother into branch road
Chopper hands closes display lamp and the first relay, the second relay, the 3rd relay, and the coil of described first relay is with female
Connection circuit breaker position rotary switch mother in series control circuit；Described first relay at least have two groups of normally opened contacts and
Two groups of normally-closed contacts, one of which normally-closed contact and bus jumping position display lamp mother in series indicating circuit, another
Group normally-closed contact one end connects another termination of positive source and opens in probe and open for accessing busbar protective device bus
Enter terminal；It is connected to the two ends of power supply by and off switch after described mother control circuit is in parallel with mother indicating circuit；First
Two groups of normally opened contacts of relay, the coils connected in series of one of which normally opened contact and the second relay constitutes Two-stage control circuit,
Described second relay at least has one group of normally-closed contact, and another group normally opened contact of the first relay is sequentially connected in series the second relay
One group of normally-closed contact of device, the coil of the 3rd relay constitute three class control circuit；3rd relay at least have two groups normally opened
Contact, one of which normally opened contact closes indicating circuit with bus hands conjunction display lamp hands in series, and another group is normally opened to be touched
Point one end connects another termination of positive source and opens in probe for connecing the terminal of busbar protective device mother palmer hyperhidrosis；Described
It is connected to the two ends of power supply by and off switch after Two-stage control circuit is in parallel with three class control circuit and hands conjunction indicating circuit；
Described malfunctioning opening includes start failure protection switch into branch road, malfunctioning opens into relay, malfunctioning opens into display lamp, described mistake
Spirit opens that coil and the start failure protection switch into relay is in series malfunctioning to be opened into control circuit；Described malfunctioning open into relay extremely
Having two groups of normally opened contacts less, one of which normally opened contact malfunctioning is opened into indicating circuit with malfunctioning opening into display lamp is in series,
Another group one end, contact connect another termination of positive source open in probe for connect busbar protective device outside malfunctioning open into
Terminal；Described malfunctioning open control circuit with malfunctioning open indicating circuit in parallel after be connected to the two of power supply by and off switch
End.
Described outlet loop includes that involution button, mother outlet auxiliary reclay, mother exit lighting and outlet are visited
Head, described mother outlet auxiliary reclay at least has two groups of normally opened contacts, and one of which normally opened contact is middle with mother outlet
The coils connected in series of relay constitutes mother outlet and triggers circuit, another group normally opened contact and mother exit lighting mother in series
Connection outlet indicating circuit；It is connected to by involution button after described mother outlet triggering circuit is in parallel with mother outlet indicating circuit
The two ends of power supply；The coil of mother outlet auxiliary reclay is connected to outlet probe with the common port of normally opened contact.
The beneficial effects of the utility model are: easy to use, perfect in shape and function, carry out bus protection test time, open into
And outlet action situation is very clear, it is greatly improved bus protection testing efficiency.
Accompanying drawing explanation
Fig. 1 is that the circuit theory diagrams into branch road are opened in the disconnecting link position of one embodiment of this utility model.
Fig. 2 is that mother of the present utility model opens the circuit theory diagrams into branch road.
Fig. 3 is of the present utility model malfunctioning to open the circuit theory diagrams into branch road.
Fig. 4 is the circuit theory diagrams of outlet loop of the present utility model.
Fig. 5 is the schematic front view of front panel of the present utility model.
Detailed description of the invention
As it is shown in figure 5, portable microcomputer busbar protective device tester described in the utility model includes housing 1, is arranged on
On and off switch 2 on housing 1 front panel, bus branch road display floater 3, involution button 4, exit lighting group 7, malfunctioning open into pressing
Button lamp group 8, other open into display lamp 9, on and off switch 2 uses direct current twin-stage sky to open；Arrange on described bus branch road display floater 3
There is bus wiring diagram, described bus wiring diagram is embedded with branch road disconnecting link position displaying lamp 10, branch road disconnecting link position rotary switch
11 and bus position rotary switch 12；Being provided with circuit board in described housing 1, described circuit board is by opening entry loop and going out
Mouthful loop composition, opens entry loop and includes disconnecting link position to open into branch road, mother opening into branch road and malfunctioning open into branch road.
As it is shown in figure 1, described disconnecting link position is opened includes disconnecting link position rotary switch 11, auxiliary reclay KA, cutter into branch road
Gate position display lamp 10, open into probe 5, the coil of described auxiliary reclay KA and disconnecting link position rotary switch 11 control in series
Circuit processed；Described auxiliary reclay KA at least has two groups of normally opened contacts, and one of which contact is gone here and there with disconnecting link position displaying lamp 10
Connection constitutes indicating circuit, and another group one end, contact connects another termination of positive source and opens in probe 5 for connecing bus protection dress
Put disconnecting link open into terminal；It is connected to the two ends of power supply by and off switch 2 after described control circuit is in parallel with indicating circuit；
As in figure 2 it is shown, described mother is opened includes that bus position rotary switch 12, bus jump position into branch road
Display lamp TW, bus hands close display lamp SH and the first relay K A1, the second relay K A2, the 3rd relay K A3,
Second relay K A2 uses time delay relay；The coil of described first relay K A1 is opened with bus position knob
Close 12 mother control circuits in series；Described first relay K A1 at least has two groups of normally opened contacts and two groups of normally-closed contacts,
One of which normally-closed contact jumps position display lamp TW mother in series indicating circuit with bus, and another organizes normally-closed contact one
End connects another termination of positive source and opens in probe 5 and open into terminal for accessing busbar protective device bus；Described
It is connected to the two ends of power supply by and off switch 2 after mother control circuit is in parallel with mother indicating circuit；First relay K A1
Two groups of normally opened contacts, the coils connected in series of one of which normally opened contact and the second relay K A2 constitutes Two-stage control circuit, and described the
Two relay K A2 at least have one group of normally-closed contact, and another group normally opened contact of the first relay K A1 is sequentially connected in series the second relay
One group of normally-closed contact of device KA2, the coil of the 3rd relay K A3 constitute three class control circuit；3rd relay K A3 at least has
Two groups of normally opened contacts, one of which normally opened contact and bus hands close display lamp SH hands in series and close indicating circuit, separately
One group of normally opened contact one end connects another termination of positive source and opens in probe 5 for connecing busbar protective device mother palmer hyperhidrosis
Terminal；Described Two-stage control circuit is connected by and off switch 2 after closing indicating circuit parallel connection with three class control circuit and hands
Two ends at power supply；
As it is shown on figure 3, described malfunctioning opening includes start failure protection switch SL into branch road, malfunctioning opens into relay SL1, malfunctioning opens
Entering display lamp SLE, the described malfunctioning coil opened into relay SL1 is in series with start failure protection switch SL malfunctioning to be opened into control electricity
Road；Described malfunctioning opening at least has two groups of normally opened contacts into relay SL1, and one of which normally opened contact is opened into display lamp with malfunctioning
SLE is in series malfunctioning to be opened into indicating circuit, another group one end, contact connect another termination of positive source open in probe 5 for
Connect busbar protective device outside malfunctioning open into terminal；Described malfunctioning open control circuit with malfunctioning open indicating circuit in parallel after
The two ends of power supply it are connected to by and off switch 2.
According to different purposes, malfunctioning open into can be divided into again outside start that mother is malfunctioning, circuit branch road start failure protection and main transformer
Branch road start failure protection three class.The malfunctioning entry loop principle of opening of three classes is similar to, and is start failure protection and opens into button to busbar protective device
Input intake.Difference is as required, for mother arrange outside malfunctioning open into, three trippings are set for main transformer and enter and releases to answer
Press off lock open into, jumping A phase is set for circuit, jumps B phase, jumps C phase, three trippings and enter.Fig. 3 only by mother outside malfunctioning open as a example by,
Other repeat no more.Above-mentioned multiple malfunctioning display lamp SLE that opens is installed on the front panel of housing 1, collectively forms malfunctioning opening
Enter Push-button lamp group 8.
As shown in Figure 4, described outlet loop includes involution button 4, mother outlet auxiliary reclay KC, mother outlet instruction
Lamp ML and outlet probe 6, described mother outlet auxiliary reclay KC at least has two groups of normally opened contacts, and one of which is normally opened to be touched
Point constitutes mother outlet triggering circuit with the coils connected in series of mother outlet auxiliary reclay KC, and another group normally opened contact goes out with mother
Mouth display lamp ML mother in series outlet indicating circuit；It is in parallel with mother outlet indicating circuit that the outlet of described mother triggers circuit
The two ends of power supply it are connected to afterwards by involution button 4；The coil of mother outlet auxiliary reclay KC and the common port of normally opened contact
It is connected to export probe 6.
According to different purposes, outlet loop can be divided into again mother outlet, circuit props up way outlet and main transformer props up way outlet.Root
According to needs, a mother outlet loop, ten line outlet loops, four main transformer outlet loops are set.All kinds of outlet loops are former
Reason is similar, and difference is, according to main transformer particularity, to set up main transformer connection for it and jump out mouth.Multiple mothers in these outlet loops go out
Mouth display lamp ML is installed on the front panel of housing 1, collectively forms exit lighting group 7.
Bus branch road display floater 3 includes bus wiring diagram, and each branch road disconnecting link position display being embedded on wiring diagram
Lamp 10, each branch road disconnecting link position rotary switch 11 and bus position rotary switch 12；Exit lighting group 7 includes 10
The outlet action instruction of circuit, 4 main transformers and 1 mother, it is considered to function jumped by main transformer configuration connection, arranges connection for main transformer branch road and jumps out
Mouth action indicator；Malfunctioning opening into Push-button lamp group 8 is tape light self-replaced type press button, including 10 circuits button, 4
The button of individual main transformer and the button of 1 mother；Other are opened and are jumped position display lamp and bus into display lamp 9 by bus
Hands closes display lamp composition.Exit lighting group 7, other open and be LED material lamp into display lamp 9 and disconnecting link position displaying lamp 10,
Circuit is together accessed into Push-button lamp group 8, disconnecting link position rotary switch 11 and bus position rotary switch 12 with malfunctioning opening
In plate.
Tester before use, is left probe 5 and accesses in busbar protective device and corresponding to open into terminal by this utility model,
Outlet probe 6 is received on the output clamping that busbar protective device is corresponding, and power turn-on switch 2 makes tester access 220kV direct current
Power supply.Specifically introduce in terms of intake inspection and protection exit test two below this device use process:
1, intake inspection test
1) disconnecting link position is opened into inspection: screw disconnecting link position rotary switch 11 successively, auxiliary reclay KA successively electric open
Dynamic, its two groups of normally opened contacts are closed at, and respective branch disconnecting link position displaying lamp 10 is lighted, positive potential through open into probe 5 open into
The disconnecting link position terminals of busbar protective device, now maintainer can with busbar protective device mimic panel upper slitter gate position instruction and
Open inside device into information contrast verification disconnecting link position open into.
2) malfunctioning open into inspection: all kinds of malfunctioning opening are similar to into principle, by mother outside malfunctioning open as a example by, other are the most superfluous
Stating: persistently press that lower outer portion is malfunctioning to be opened into button, malfunctioning opening must electrically activate into relay, and its two groups of normally opened contacts are closed at, its
He opens and opens into lamp bright on display lamp, and positive potential is opened into terminal into the malfunctioning of busbar protective device through opening to open into probe 5；Otherwise it is loose
Over malfunctioning open into button, other are opened opening on display lamp and go out into lamp, open without positive potential and open into busbar protective device is malfunctioning
Enter terminal, now can open and open into situation into information contrast verification is malfunctioning inside busbar protective device.
3) mother intake checks: when bus position rotary switch 12 separates, the first relay K A1 is not actuated.
Its two groups of normally-closed contact Guan Bis, bus is jumped position display lamp TW and is lighted；Positive potential is through opening into probe 5 busbar protective device
Bus is opened into terminal.When bus position rotary switch 12, the first relay K A1 must electrically activate, its two groups
Normally-closed contact disconnects, and bus is jumped position display lamp TW lamp and gone out, and the bus opened into busbar protective device without current potential is opened
Enter terminal；Two groups of normally opened contact Guan Bis of the first relay K A1, now the 3rd relay K A3 must electrically activate, the 3rd relay
Two groups of normally opened contact Guan Bis of KA3, it is bright that bus hands closes display lamp SH lamp, and positive potential is protected into bus through opening to open into probe 5
The mother palmer hyperhidrosis terminal of protection unit.Second relay K A2 must electrically activate after delay time, and its contact disconnects and makes the 3rd to continue
Electrical equipment KA3 dead electricity, the contact of the 3rd relay K A3 disconnects, so that bus hands closes display lamp SH lamp and goes out, without positive potential
Open the palmer hyperhidrosis terminal into busbar protective device.Bus jumps position display lamp TW and bus hands closes display lamp SH
Can open into information contrast verification inside busbar protective device.
2, protection exit test
After intake inspection is errorless, carry out protection exit test.
Each branch road outlet loop action situation principle is similar to, and as a example by mother exports: when mother action exports, mother is jumped
There is instantaneous positive potential on lock pressing plate, flow into tester outlet loop, relay in the middle of now mother outlet by mother outlet probe
Device KC must electrically activate, and its contact is all closed at, and one group of closing of contact is used for keeping instantaneous voltage to terminate in the middle of the outlet of rear mother
Relay K C persistently starts, and another group closing of contact is used for lighting mother exit lighting ML.
After finishing protection exit testing experiment, pressing involution button 4 and can disconnect outlet loop, all outlet ports display lamp puts out
Going out, outlet instruction restPoses.
Claims (3)
1. portable microcomputer busbar protective device tester, opens including housing (1), the power supply that is arranged on housing (1) front panel
Close (2), bus branch road display floater (3), involution button (4), exit lighting group (7), malfunctioning open into Push-button lamp group (8), its
It is characterised by: be provided with bus wiring diagram on described bus branch road display floater (3), described bus wiring diagram is embedded with branch road
Disconnecting link position displaying lamp (10), branch road disconnecting link position rotary switch (11) and bus position rotary switch (12)；Described
Being provided with circuit board in housing (1), described circuit board, by opening entry loop and outlet loop forms, is opened entry loop and is included disconnecting link position
Open and open into branch road into branch road, mother and malfunctioning open into branch road.
Portable microcomputer busbar protective device tester the most according to claim 1, it is characterised in that:
Described disconnecting link position is opened and is included disconnecting link position rotary switch (11), auxiliary reclay (KA), disconnecting link position display into branch road
Lamp (10), open into probe (5), the coil of described auxiliary reclay (KA) and rotary switch (11) control in series of disconnecting link position
Circuit；Described auxiliary reclay (KA) at least has two groups of normally opened contacts, one of which contact and disconnecting link position displaying lamp (10)
Indicating circuit in series, another group one end, contact connection another termination of positive source is opened and is used in probe (5) meeting bus guarantor
Protection unit disconnecting link open into terminal；It is connected to power supply by and off switch (2) after described control circuit is in parallel with indicating circuit
Two ends；
Described mother open into branch road include bus position rotary switch (12), bus jump position display lamp (TW),
Bus hands closes display lamp (SH) and the first relay (KA1), the second relay (KA2), the 3rd relay (KA3),
The coil of described first relay (KA1) and bus position rotary switch (12) mother in series control circuit；Institute
Stating the first relay (KA1) and at least have two groups of normally opened contacts and two groups of normally-closed contacts, one of which normally-closed contact breaks with mother
Position display lamp (TW) mother in series indicating circuit jumped by road device, and another group normally-closed contact one end connects another termination of positive source
Open and probe (5) is used for access busbar protective device bus opens into terminal；Described mother control circuit refers to mother
It is connected to the two ends of power supply by and off switch (2) after showing circuit in parallel；Two groups of normally opened contacts of the first relay (KA1), its
In the coils connected in series of one group of normally opened contact and the second relay (KA2) constitute Two-stage control circuit, described second relay (KA2)
At least having one group of normally-closed contact, another group normally opened contact of the first relay (KA1) is sequentially connected in series the second relay (KA2)
One group of normally-closed contact, coil of the 3rd relay (KA3) constitute three class control circuit；3rd relay (KA3) at least has two
Group normally opened contact, one of which normally opened contact and bus hands close display lamp (SH) hands in series and close indicating circuit, separately
One group of normally opened contact one end connects another termination of positive source and opens and be used for connecing busbar protective device mother hands in probe (5) and run jointly
The terminal entered；By on and off switch (2) after described Two-stage control circuit is in parallel with three class control circuit and hands conjunction indicating circuit
It is connected to the two ends of power supply；
Described malfunctioning opening includes start failure protection switch (SL) into branch road, malfunctioning opens into relay (SL1), malfunctioning opens into display lamp
(SLE), described malfunctioning coil and the start failure protection switch (SL) opened into relay (SL1) is in series malfunctioning opens into control electricity
Road；Described malfunctioning opening at least has two groups of normally opened contacts into relay (SL1), and one of which normally opened contact is opened into instruction with malfunctioning
Lamp (SLE) is in series malfunctioning to be opened into indicating circuit, and another group one end, contact connects another termination of positive source and opens into probe (5)
In for connect busbar protective device outside malfunctioning open into terminal；Described malfunctioning opening is opened into indicating circuit with malfunctioning into control circuit
It is connected to the two ends of power supply by and off switch (2) after parallel connection.
Portable microcomputer busbar protective device tester the most according to claim 1 and 2, it is characterised in that: described outlet
Loop includes involution button (4), mother outlet auxiliary reclay (KC), mother exit lighting (ML) and outlet probe (6),
Described mother outlet auxiliary reclay (KC) at least has two groups of normally opened contacts, and one of which normally opened contact is middle with mother outlet
The coils connected in series of relay (KC) constitutes mother outlet and triggers circuit, and another group normally opened contact is gone here and there with mother exit lighting (ML)
Connection constitutes mother outlet indicating circuit；Pressed by involution after described mother outlet triggering circuit is in parallel with mother outlet indicating circuit
Button (4) is connected to the two ends of power supply；The coil of mother outlet auxiliary reclay (KC) is connected to out with the common port of normally opened contact
Mouth probe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620616744.0U CN205749738U (en) | 2016-06-22 | 2016-06-22 | Portable microcomputer busbar protective device tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620616744.0U CN205749738U (en) | 2016-06-22 | 2016-06-22 | Portable microcomputer busbar protective device tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205749738U true CN205749738U (en) | 2016-11-30 |
Family
ID=57383175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620616744.0U Withdrawn - After Issue CN205749738U (en) | 2016-06-22 | 2016-06-22 | Portable microcomputer busbar protective device tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205749738U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954626A (en) * | 2016-06-22 | 2016-09-21 | 国网山东省电力公司莱芜供电公司 | Portable microcomputer bus protection apparatus tester |
| CN109713646A (en) * | 2018-11-30 | 2019-05-03 | 南京国电南自电网自动化有限公司 | Bus failure protection switching method based on other female disconnecting link sideband main transformer |
| CN110618335A (en) * | 2019-10-15 | 2019-12-27 | 云南电网有限责任公司保山供电局 | Electric power is with multi-functional protection detection clamp plate device |
-
2016
- 2016-06-22 CN CN201620616744.0U patent/CN205749738U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954626A (en) * | 2016-06-22 | 2016-09-21 | 国网山东省电力公司莱芜供电公司 | Portable microcomputer bus protection apparatus tester |
| CN109713646A (en) * | 2018-11-30 | 2019-05-03 | 南京国电南自电网自动化有限公司 | Bus failure protection switching method based on other female disconnecting link sideband main transformer |
| CN110618335A (en) * | 2019-10-15 | 2019-12-27 | 云南电网有限责任公司保山供电局 | Electric power is with multi-functional protection detection clamp plate device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161130 Effective date of abandoning: 20180821 |
|
| AV01 | Patent right actively abandoned |