CN203759823U - Intelligent residual current detection alarm device - Google Patents
Intelligent residual current detection alarm device Download PDFInfo
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- CN203759823U CN203759823U CN201320810224.XU CN201320810224U CN203759823U CN 203759823 U CN203759823 U CN 203759823U CN 201320810224 U CN201320810224 U CN 201320810224U CN 203759823 U CN203759823 U CN 203759823U
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- phase line
- residual current
- working power
- monitoring alarm
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Abstract
The utility model discloses an intelligent residual current detection alarm device. The intelligent residual current detection alarm device comprises a fire monitoring alarm; the fire monitoring alarm through wires is respectively connected with an N line, a phase line L3, a residual current sensor ZCT, an environment temperature sensor t, an environment humidity sensor RH, and a data processing computer; the fire monitoring alarm through wires is also connected with a phase line L3 current transformer CT3, a phase line L2 current transformer CT2, and a phase line L1 current transformer CT1; an initial residual current confirmation button is arranged on the fire monitoring alarm; and the fire monitoring alarm through wires is respectively connected with a phase line L2 and a phase line L1. In the utility model, the residual current detected by the sensor is sent to the single-chip microcomputer circuit for calculation; the output result by calculation is compared with the fire monitoring alarm critical value; and the alarm is generated.
Description
Technical field
The utility model relates to a kind of intelligent residual current detection warning device.
Background technology
According to public security fire-fighting department information, in fire failure, the fire failure that electric reason causes accounts for more than 70%, in order effectively to take precautions against the generation of electrical fire accident, national Specification must be installed fire-disaster monitoring device in architectural electricity, effectively takes precautions against the generation of fire failure.Supply line causes the reduction of the classes of insulation such as damage in insulation because of insulation ag(e)ing, the collision of hard thing, can leak electricity over the ground.When this leakage current increases to 300mA when above, easily cause that fire goods are on fire.National regulation is installed fire hazard monitoring sniffer in buildings supply line, can dock ground leakage current and effectively monitor.Be applied at present supply line's fire-disaster monitoring device; according to the residual current monitoring type of the standard manufacture of GB 14287.2-2005 " electric fire monitoring system part 2: residual current type detector for electric fire protection " and GB 13955-2005 " installation and operation of aftercurrent action protecting equipment "; fire-disaster monitoring device uses zero sequence current mutual inductor to gather residual current; circuit is shown in Fig. 1; when fire alarm, be not the residual current that has occurred warning critical value on true meaning, wrong report phenomenon is more serious.Many units are cancelled not installing or installing without hesitation not to be used, and this has brought risk to the fire hazard monitoring on true meaning, and Technique Popularizing is affected.In three-phase power line, in the residual current collecting, there is the residual current producing because of residual current and the various interference of circuit of supply line's insulation ag(e)ing generation.
Summary of the invention
The purpose of this utility model, is that a kind of intelligent residual current detection warning device will be provided, and solves current electric fire monitoring device to gathering the inaccurate false alarm problem occurring of residual current, makes the fire-disaster monitoring device intellectuality of marching toward.
The utility model is to realize like this, the intelligent residual current detection warning device of described one, it comprises fire disaster monitoring alarm, fire disaster monitoring alarm is connected with working power N line respectively through wire, L3 is connected with working power phase line, ZCT is connected with residual current sensor, t is connected with environment temperature sensor, RH is connected with ambient humidity sensor, be connected with data handling machine, described fire disaster monitoring alarm is also connected with working power phase line L3 Current Transmit 3 respectively through wire, be connected with working power phase line L2 Current Transmit 2, be connected with working power phase line L1 Current Transmit 1, on described fire disaster monitoring alarm, be provided with initial residual current and confirm button, described fire disaster monitoring alarm is also connected with working power phase line L2 respectively, is connected with working power phase line L1 through wire.
The beneficial effects of the utility model are, the residual current that it detects sensor is delivered to single chip microcomputer circuit and carried out computing, and Output rusults and fire hazard monitoring warning critical value compare, report to the police.The safety effectiveness that it brings for the widely used fire hazard monitoring of architectural electricity, eliminate architectural electricity disaster hidden-trouble, eliminate fire hazard monitoring and report the people that bring and do not believe the problem of " wolf has come ", to public security fire-fighting supervise work, to social, all can produce good effect to user.
Brief description of the drawings
Fig. 1 is now widely used residual current type fire hazard monitoring warning schematic diagram.
Fig. 2 is the utility model fire hazard monitoring warning schematic diagram.
In Fig. 1: 1. fire hazard monitoring controller, 2. working power N line, 3. working power phase line L3,4. phase line temperature sensor t3,5. phase line temperature sensor t2,6. phase line temperature sensor t1,7. residual current sensor ZCT, 8. environment temperature sensor t4,9. ambient humidity sensor RH, 10. data handling machine.
In Fig. 2,11. fire hazard monitoring controllers, 12. initial residual currents are confirmed button, 13. working power N lines, 14. working power phase line L3,15. working power phase line L2,16. working power phase line L1,17. working power phase line L3 current transformers, 18. working power phase line L2 current transformers, 19. working power phase line L1 current transformers, 20. residual current sensor ZCT, 21. environment temperature sensor t, 22. ambient humidity sensor RH, 23. data handling machines.
Embodiment
The intelligent residual current detection warning device of one described in the utility model, as shown in Figure 2, it comprises fire disaster monitoring alarm 11, fire disaster monitoring alarm 11 is connected with working power N line respectively through wire, L3 is connected with working power phase line, ZCT is connected with residual current sensor, t is connected with environment temperature sensor, RH is connected with ambient humidity sensor, be connected with data handling machine 23, described fire disaster monitoring alarm 11 is also connected with working power phase line L3 Current Transmit 3 respectively through wire, be connected with working power phase line L2 Current Transmit 2, be connected with working power phase line L1 Current Transmit 1, on described fire disaster monitoring alarm 11, be provided with initial residual current and confirm button 12, described fire disaster monitoring alarm 11 is also connected with working power phase line L2 respectively, is connected with working power phase line L1 through wire.
In Fig. 2,11. fire hazard monitoring controllers, 12. initial residual currents are confirmed button, 13. working power N lines, 14. working power phase line L3,15. working power phase line L2,16. working power phase line L1,17. working power phase line L3 current transformers, 18. working power phase line L2 current transformers, 19. working power phase line L1 current transformers, 20. residual current sensor ZCT, 21. environment temperature sensor t, 22. ambient humidity sensor RH, 23. data handling machines.
The principle of work of Fig. 2 is described below respectively:
The residual current data that residual current sensor ZCT detects in three-phase line are given fire disaster monitoring alarm 11, voltage detecting data in L3, L2, L1 phase line are given fire disaster monitoring alarm 11 by contact 14,15,16 simultaneously, and current detecting data are given fire disaster monitoring alarm 11 by current transformer 17,18,19.Aging and the time correlation of the leakage current value that residual current transformer ZCT detects and L3, L2, L1 phase line line insulation, controller compares according to the alarming value setting in advance, and then reaches the object of warning and prevention.
In Fig. 1: 1. fire hazard monitoring controller, 2. working power N line, 3. working power phase line L3,4. phase line temperature sensor t3,5. phase line temperature sensor t2,6. phase line temperature sensor t1,7. residual current sensor ZCT, 8. environment temperature sensor t4,9. ambient humidity sensor RH, 10. data handling machine.
The principle of work of Fig. 1 is such: phase line temperature sensor t1, t2, t3 are responsible for monitoring supply line's temperature data, and compare with the data that environment temperature sensor t4 detects, the temperature detecting when line sensor during higher than setting value, illustrates that line load is overweight, provides alerting signal.Ambient humidity sensor RH is responsible for detecting humidity, for assessment line temperature with reference to.In the time that detecting residual current off-rating, residual current sensor ZCT provides alerting signal.Fire hazard monitoring warning device shown in Fig. 1 is inaccurate to gathering residual current, the false alarm problem there will be.
Claims (1)
1. an intelligent residual current detection warning device, it comprises fire disaster monitoring alarm, fire disaster monitoring alarm is connected with working power N line respectively through wire, L3 is connected with working power phase line, ZCT is connected with residual current sensor, t is connected with environment temperature sensor, RH is connected with ambient humidity sensor, be connected with data handling machine, it is characterized in that: described fire disaster monitoring alarm is also connected with working power phase line L3 Current Transmit 3 respectively through wire, be connected with working power phase line L2 Current Transmit 2, be connected with working power phase line L1 Current Transmit 1, on described fire disaster monitoring alarm, be provided with initial residual current and confirm button, described fire disaster monitoring alarm is also connected with working power phase line L2 respectively, is connected with working power phase line L1 through wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320810224.XU CN203759823U (en) | 2013-12-11 | 2013-12-11 | Intelligent residual current detection alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320810224.XU CN203759823U (en) | 2013-12-11 | 2013-12-11 | Intelligent residual current detection alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203759823U true CN203759823U (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320810224.XU Expired - Fee Related CN203759823U (en) | 2013-12-11 | 2013-12-11 | Intelligent residual current detection alarm device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203759823U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525889A (en) * | 2020-05-09 | 2020-08-11 | 安徽联维新能源科技有限公司 | Solar photovoltaic power generation supply system |
-
2013
- 2013-12-11 CN CN201320810224.XU patent/CN203759823U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525889A (en) * | 2020-05-09 | 2020-08-11 | 安徽联维新能源科技有限公司 | Solar photovoltaic power generation supply 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: 20140806 Termination date: 20191211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |