CN203434591U - Security-isolation insulating power-off device - Google Patents
Security-isolation insulating power-off device Download PDFInfo
- Publication number
- CN203434591U CN203434591U CN201320513818.4U CN201320513818U CN203434591U CN 203434591 U CN203434591 U CN 203434591U CN 201320513818 U CN201320513818 U CN 201320513818U CN 203434591 U CN203434591 U CN 203434591U
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- Prior art keywords
- phase
- connects
- monitoring unit
- isolation transformer
- insulating
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- 238000002955 isolation Methods 0.000 title claims abstract description 29
- 238000012544 monitoring process Methods 0.000 claims abstract description 35
- 238000009413 insulation Methods 0.000 claims description 16
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
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Abstract
The utility model discloses a security-isolation insulating power-off device including a high-voltage circuit breaker. The high-voltage circuit breaker is connected with an input-voltage selection unit. The input-voltage selection unit is connected with a three-phase isolation transformer. An output of the three-phase isolation transformer is connected with a three-phase four-wire switch. The security-isolation insulating power-off device is characterized in that the output of the three-phase isolation transformer is also connected with an insulating monitoring unit. The insulating monitoring unit is connected with the three-phase four-wire switch and an alarm device. The security-isolation insulating power-off device carries out insulating monitoring in a real-time manner on electrical devices and circuits so that when a leakage fault occurs, power-off protection is carried out.
Description
Technical field
The utility model relates to electricity field, specifically, relates to a kind of safe isolated insulation breaker device.
Background technology
Insulating power supply secondary side isolated neutral though voltage to earth electric current is zero, if single-phase insulation fault can not damage, while having two-phase to occur insulation fault, there will be danger simultaneously after people's contact.This is the deficiencies in the prior art part.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of safe isolated insulation breaker device, to electrical appliance and the real-time insulating monitoring of circuit, carries out power-off protection when there is leakage failure.
The utility model adopts following technical scheme to realize goal of the invention:
A kind of safe isolated insulation breaker device, comprise primary cut-out, described primary cut-out connects input voltage selected cell, described input voltage selected cell connects three-phase isolation transformer, described three-phase isolation transformer output connects three-phase and four-line switch, it is characterized in that: described three-phase isolation transformer output also connects insulating monitoring unit, and described insulating monitoring unit connects described three-phase and four-line switch and warning device.
As the further restriction to the technical program, described three-phase isolation transformer output also connects current monitoring unit.
As the further restriction to the technical program, described three-phase isolation transformer output also connects voltage monitoring unit.
As the further restriction to the technical program, described warning device is acoustic-optic alarm.
As the further restriction to the technical program, described insulating monitoring unit connects described three-phase and four-line switch by tripping coil.
As the further restriction to the technical program, described three-phase and four-line switch output connects single-phase switch.
Compared with prior art, advantage of the present utility model and good effect are: primary cut-out of the present utility model has over load defencive function; The input voltage of input voltage selected cell for selecting three-phase isolation transformer to need, three-phase isolation transformer adopts safe isolation technology to make, that is: electricity-magnetic-electricity conversion, once adopts reinforced insulation PROCESS FOR TREATMENT with secondary winding.Rear class adopts free of discontinuities insulating monitoring unit, and electrical appliance and circuit are implemented to insulating monitoring, carries out power-off protection when there is leakage failure.Adopt current monitoring unit and voltage monitoring unit, the electric current in Real-Time Monitoring circuit and change in voltage situation simultaneously.When insulating power supply breaks down, this device can detect the variation of insulation values in time, according to this device of set point, can automatically send early warning indication, if fault is when removing, start warning device sound and light alarm, the faulty line of instruction is simultaneously threaded off and is excised corresponding control switch at once.
Accompanying drawing explanation
Fig. 1 is functional-block diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the utility model is further described in detail.
The utility model comprises primary cut-out, described primary cut-out connects input voltage selected cell, voltage selected cell is selected from 1140V, 660V and tri-kinds of voltages of 380V, described input voltage selected cell connects three-phase isolation transformer, described three-phase isolation transformer output connects three-phase and four-line switch, described three-phase and four-line switch output connects single-phase switch, described three-phase isolation transformer output also connects insulating monitoring unit, and described insulating monitoring unit connects described three-phase and four-line switch and alarm unit.Three-phase isolation transformer passes through iron core grounding, insulating monitoring unit ground connection, and described insulating monitoring unit connects described three-phase and four-line switch by tripping coil.
Described three-phase isolation transformer output also connects current monitoring unit, and current monitoring unit adopts current transformer.
Described three-phase isolation transformer output also connects voltage monitoring unit, and voltage monitoring unit comprises universal seclector and output voltage meter.Insulating monitoring of the present utility model unit, current monitoring unit and voltage monitoring unit are all to adopt existing components and parts to make, and do not repeat them here.
Described warning device is acoustic-optic alarm.
Primary cut-out of the present utility model has over load defencive function; The input voltage of input voltage selected cell for selecting three-phase isolation transformer to need, three-phase isolation transformer adopts safe isolation technology to make, that is: electricity-magnetic-electricity conversion, once adopts reinforced insulation PROCESS FOR TREATMENT with secondary winding.Rear class adopts free of discontinuities insulating monitoring unit, and electrical appliance and circuit are implemented to insulating monitoring, carries out power-off protection when there is leakage failure.Adopt current monitoring and voltage monitoring, the electric current in Real-Time Monitoring circuit and change in voltage situation simultaneously.When insulating power supply breaks down, this device can detect the variation of insulation values in time, according to this device of set point, can automatically send early warning indication, if fault is when removing, start warning device sound and light alarm, the faulty line of instruction simultaneously tripping coil excises corresponding control switch at once.
The utility model can pass through or adopt existing techniques in realizing without the technical characterictic of describing; do not repeat them here; certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned giving an example; the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection range of the present utility model.
Claims (6)
1. a safe isolated insulation breaker device, comprise primary cut-out, described primary cut-out connects input voltage selected cell, described input voltage selected cell connects three-phase isolation transformer, described three-phase isolation transformer output connects three-phase and four-line switch, it is characterized in that: described three-phase isolation transformer output also connects insulating monitoring unit, and described insulating monitoring unit connects described three-phase and four-line switch and warning device.
2. safe isolated insulation breaker device according to claim 1, is characterized in that: described three-phase isolation transformer output also connects current monitoring unit.
3. safe isolated insulation breaker device according to claim 1, is characterized in that: described three-phase isolation transformer output also connects voltage monitoring unit.
4. safe isolated insulation breaker device according to claim 1, is characterized in that: described warning device is acoustic-optic alarm.
5. according to the safe isolated insulation breaker device one of claim 1-4 Suo Shu, it is characterized in that: described insulating monitoring unit connects described three-phase and four-line switch by tripping coil.
6. according to the safe isolated insulation breaker device one of claim 1-4 Suo Shu, it is characterized in that: described three-phase and four-line switch output connects single-phase switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320513818.4U CN203434591U (en) | 2013-08-22 | 2013-08-22 | Security-isolation insulating power-off device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320513818.4U CN203434591U (en) | 2013-08-22 | 2013-08-22 | Security-isolation insulating power-off device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203434591U true CN203434591U (en) | 2014-02-12 |
Family
ID=50063609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320513818.4U Expired - Fee Related CN203434591U (en) | 2013-08-22 | 2013-08-22 | Security-isolation insulating power-off device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203434591U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462808A (en) * | 2017-04-24 | 2017-12-12 | 绵阳莫仕科技有限公司 | A kind of laboratory insulating power supply type insulation monitoring system |
-
2013
- 2013-08-22 CN CN201320513818.4U patent/CN203434591U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462808A (en) * | 2017-04-24 | 2017-12-12 | 绵阳莫仕科技有限公司 | A kind of laboratory insulating power supply type insulation monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20150822 |
|
| EXPY | Termination of patent right or utility model |