CN208797367U - False switching control system after plastic housing failure is prevented in the drawer of low-tension switch cabinet - Google Patents
False switching control system after plastic housing failure is prevented in the drawer of low-tension switch cabinet Download PDFInfo
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- CN208797367U CN208797367U CN201821662743.5U CN201821662743U CN208797367U CN 208797367 U CN208797367 U CN 208797367U CN 201821662743 U CN201821662743 U CN 201821662743U CN 208797367 U CN208797367 U CN 208797367U
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- plastic housing
- fault
- failure
- normally opened
- opened contact
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Abstract
The utility model be low-tension switch cabinet drawer in prevent false switching control system after plastic housing failure; anode is serially connected with the insurance FU of fuse protection in 220V control power supply; normally opened contact is connected in the circuit of 220V control power supply; normally opened contact is failure auxiliary contact; and it is connected with the control coil of intermediate relay KA, which forms plastic housing fault-signal expansion；The normally-closed contact of intermediate relay is parallel on circuit outside plastic housing fault-signal expansion, normally-closed contact reconnection has coil without tension MN, which forms fault-signal intertripping part；The normally opened contact of intermediate relay KA is also parallel on circuit outside plastic housing fault-signal expansion and fault-signal intertripping part, normally opened contact reconnects acousto-optic alarm, which forms sound-light alarm part.The utility model had not only reminded the generation of failure but also had prevented plastic housing false switching, ensure that the dangerous of maloperation occurs.
Description
Technical field
The utility model relates to security appliance control systems, after specifically preventing plastic housing failure in the drawer of low-tension switch cabinet
False switching control system.
Background technique
With the proposition of " made in China 2025 ", power transmission and distribution industry to the safety of data center's Intelligent low-voltage switchgear just
There is higher requirement.
The shortcomings that existing data center's Intelligent low-voltage switchgear, has in the market: after tripping is broken down in plastic housing, scene
Staff be but easy fault not note that then just operation plastic housing is closed a floodgate in the case where failure releases not yet, and cause
Dangerous generation.
For example reflect according to power distribution room field personnel, it occur frequently that after plastic housing fault trip, live staff
But fault is easy not note that then just operation plastic housing is closed a floodgate in the case where failure releases not yet, and causes dangerous generation.
And existing solution is to improve the ability to work of field personnel, goes through whether plastic housing is that failure is jumped
Lock, but the generation that still can be made mistakes.
Application No. is: 2018102207349 disclose a kind of anti-misoperation locking circuit, and the block signal in the invention bears mould
For block when detecting the system failure of power supply decompression, system reset and program abnormal running, lock modules control performer
Drive module stops working, to realize automatic blocking performer, prevents breaker from missing separating brake or false switching, raising is matched automatically
The reliability and stability of electric system.
The patent executes program abnormal running, although effect is good, higher cost using modularization.
201720585288.2 providing a kind of system that breaker prevents false switching.The patent is suitable for breaker.
Summary of the invention
The utility model prevents false switching after plastic housing failure in the drawer in order to simple realization low-tension switch cabinet, and spy mentions
It has in the drawer of low-tension switch cabinet false switching control system after preventing plastic housing failure.
The technical solution of the utility model is that false switching controls after preventing plastic housing failure in the drawer of low-tension switch cabinet thus
System is included in control loop and is connected with 220V control power supply, and anode is serially connected with the insurance of fuse protection in 220V control power supply
FU, it is characterised in that: normally opened contact is connected in the circuit of 220V control power supply, normally opened contact is failure auxiliary touching
Point, normally opened contact are also connected with the control coil of intermediate relay KA, which forms plastic housing fault-signal expansion.
Further improvement is that being parallel with the normally closed of intermediate relay on circuit outside plastic housing fault-signal expansion
Contact, normally-closed contact reconnection have coil without tension MN, which forms fault-signal intertripping part.
Further improvement is that on circuit outside plastic housing fault-signal expansion and fault-signal intertripping part
It is also parallel with the normally opened contact of intermediate relay KA, normally opened contact reconnects acousto-optic alarm, which forms sound-light alarm portion
Point.
The utility model has the advantages that
False switching control system after preventing plastic housing failure is combined by secondary on line in the utility model, using when missing
When combined floodgate, the insurance FU of fuse protection first and intermediate relay forming circuit protection, to form the extension of plastic housing fault-signal
Part.
When in use, when false switching, the interlocking that the normally-closed contact and coil without tension MN of intermediate relay KA forms failure is jumped
Lock, that is, form it into the phenomenon that closing not brake application.
When in use, when false switching, the normally opened contact of intermediate relay KA also connects sound-light alarm immediately, so that the mistake
Shutting-brake control system forms in the drawer of low-tension switch cabinet false switching control system after preventing plastic housing failure by multiple protection.
The principles of the present invention are plastic housing installation failure contact, coil without tension MN in switch cabinet drawer, then are cooperated
Intermediate relay KA, sound-light alarm indicator light, then sound-light alarm can remind the staff at scene that failure, failure has occurred
The coil without tension MN of interlocking of signals plastic housing, makes its plastic housing that can not close a floodgate, and makes this prevents failure does not release with regard to combined floodgate plastic housing
At dangerous generation.
Solve after tripping is broken down in plastic housing, live staff be easy fault not note that then failure also
Just operation plastic housing is closed a floodgate in the case where not releasing, and causes dangerous generation.
The utility model had not only reminded the generation of failure but also had prevented plastic housing false switching, ensure that the dangerous hair of maloperation
It is raw, remind field personnel's plastic housing that failure has occurred；Prevent the plastic housing false switching of failure.
Detailed description of the invention
Fig. 1 is the connection relationship diagram of the utility model.
In figure 1 be 220V control power supply and fuse protection insurance FU, 2 be plastic housing fault-signal expansion in figure, and 3 are
Fault-signal intertripping part, 4 be sound-light alarm part.
Specific embodiment
The utility model is as shown in Figure 1.
False switching control system after plastic housing failure is prevented in the drawer of low-tension switch cabinet, is included in control loop and is connected with
220V controls the insurance FU 1 of power supply and fuse protection, and wherein 220V controls the insurance that anode in power supply is serially connected with fuse protection
FU is connected with normally opened contact in the circuit of 220V control power supply, and normally opened contact is failure auxiliary contact, and normally opened contact is also
It is connected with the control coil of intermediate relay KA, which forms plastic housing fault-signal expansion 2.
The normally-closed contact of intermediate relay KA, normally-closed contact are parallel on circuit outside plastic housing fault-signal expansion 2
Reconnection has coil without tension MN, which forms fault-signal intertripping part 3.
Further improvement is that the circuit outside plastic housing fault-signal expansion 2 and fault-signal intertripping part 3
On be also parallel with the normally opened contact of intermediate relay KA, normally opened contact reconnects acousto-optic alarm, which forms sound-light alarm
Part 4.
Secondary control principle:
1) after tripping is broken down in plastic housing, the normally opened contact SDE failure contact closure of failure auxiliary contact makes among it
The control coil KA of relay obtain it is electric, in order that extending the output of more fault-signals.
2) then the opened point of the intermediate relay KA of intermediate relay is closed, and obtains its HY sound-light alarm indicator light electric,
In order that reminding staff's plastic housing at scene that failure has occurred.
3) the normally closed point of intermediate relay KA disconnects simultaneously, powers off its coil without tension MN, in order that plastic housing can not be made to close
Lock, only after trouble shooting, MN coil without tension has obtained electric could plastic housing combined floodgate.
Claims (3)
1. preventing false switching control system after plastic housing failure in the drawer of low-tension switch cabinet, it is included in control loop and is connected with
220V controls power supply, and anode is serially connected with the insurance FU of fuse protection in 220V control power supply, it is characterised in that: controls in the 220V
Normally opened contact is connected in the circuit of power supply processed, normally opened contact is failure auxiliary contact, and is connected with the control of intermediate relay KA
Coil processed, the circuit form plastic housing fault-signal expansion.
2. false switching control system after plastic housing failure is prevented in the drawer of low-tension switch cabinet according to claim 1, it is special
Sign is: the normally-closed contact of intermediate relay KA is parallel on the circuit outside plastic housing fault-signal expansion, normally-closed contact is again
It is connected with coil without tension MN, which forms fault-signal intertripping part.
3. false switching control system after plastic housing failure is prevented in the drawer of low-tension switch cabinet according to claim 1 or 2,
It is characterized in that: being also parallel with intermediate relay on the circuit outside plastic housing fault-signal expansion and fault-signal intertripping part
The normally opened contact of device KA, normally opened contact reconnect acousto-optic alarm, which forms sound-light alarm part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821662743.5U CN208797367U (en) | 2018-10-15 | 2018-10-15 | False switching control system after plastic housing failure is prevented in the drawer of low-tension switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821662743.5U CN208797367U (en) | 2018-10-15 | 2018-10-15 | False switching control system after plastic housing failure is prevented in the drawer of low-tension switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208797367U true CN208797367U (en) | 2019-04-26 |
Family
ID=66211820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821662743.5U Active CN208797367U (en) | 2018-10-15 | 2018-10-15 | False switching control system after plastic housing failure is prevented in the drawer of low-tension switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208797367U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112366813A (en) * | 2020-11-19 | 2021-02-12 | 国网天津市电力公司 | Status indication screen of flywheel energy storage uninterrupted power source system |
-
2018
- 2018-10-15 CN CN201821662743.5U patent/CN208797367U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112366813A (en) * | 2020-11-19 | 2021-02-12 | 国网天津市电力公司 | Status indication screen of flywheel energy storage uninterrupted power source system |
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