CN203117404U - Dual-power-supply fault monitoring system - Google Patents

Dual-power-supply fault monitoring system Download PDF

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Publication number
CN203117404U
CN203117404U CN 201320124284 CN201320124284U CN203117404U CN 203117404 U CN203117404 U CN 203117404U CN 201320124284 CN201320124284 CN 201320124284 CN 201320124284 U CN201320124284 U CN 201320124284U CN 203117404 U CN203117404 U CN 203117404U
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power supply
stand
power
signal acquiring
fault signal
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罗艳
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罗艳
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Abstract

The utility model discloses a dual-power-supply fault monitoring system. The dual-power-supply fault monitoring system is characterized by comprising a main power supply, a stand-by power supply, a main power supply fault signal acquiring unit, a stand-by power supply fault signal acquiring unit, a main power supply temperature detector, a stand-by power supply temperature detector, a CPU (central processing unit) control chip and an LED display, wherein an output end of the main power supply is connected with the main power supply fault signal acquiring unit, an output end of the stand-by power supply fault signal acquiring unit is connected with the stand-by power supply fault signal acquiring unit, and the main power supply fault signal acquiring unit, the main power supply temperature detector, the stand-by power supply fault signal acquiring unit and the stand-by power supply temperature detector are connected with the CPU control chip via two buses. Via the fault signal acquiring units, effective values of three-phase voltage and phase positions of the two power supplies can be detected in real time, information about the states of the power supplies and working state of a dual-power-supply switch is output in a dynamic displaying mode, so that field workers are enabled to have very clear sensory recognitions on parameter information like put-in state of the switch and overvoltage, low-voltage and phase loss of the power supplies and the like and can take measures in tine according to actual situations.

Description

A kind of dual power supply fault monitoring system
Technical field
The utility model relates to field of power electronics, particularly a kind of monitoring system at twin-power switch.
Background technology
Along with progress of science and technology, every profession and trade is more and more higher to the requirement of power supply reliability, and a lot of occasions must adopt the two-way power supply to guarantee the reliability of powering.Twin-power switch is exactly a kind of device that can carry out reliable switch dual power supply between the two-way power supply, can not maloperation occur and cause accident can satisfying high reliability request.At present, widely used twin-power switch or action combines that (CB level contact is the air switch main contacts to the finished product device of finishing power supply switching function by mechanical chain and electric contact on the domestic and international market, the PC level is A.C. contactor class contact), or the switching device shifter of being formed by chain control by A.C. contactor, all similar; Twin-power switch input two-way power supply in the work, two contacts always are in the state that " breaks " " leading to " one, determine the state (work or standby) of power supply by contact C1 or C2 " leading to " state that " breaks ", the power supply that joins with " leading to " attitude contact is working power, the power supply that joins with " breaking " attitude contact is standby power supply, it " leads to " the attitude contact and can transfer " breaking " attitude automatically to when working power has a power failure for some reason, and can transfer " leading to " attitude to by " breaking " attitude automatically with contact that standby power supply joins, thereby finish devoting oneself to work automatically of standby power supply.
Yet, when occurring that active/standby power supply is not changed or when under-voltage, overvoltage and open-phase fault, because dual power supply quantity is many, installation disperses, has a very wide distribution, be difficult to accurately learn failure cause and trouble spot, need the staff to investigate one by one, the workload of maintenance is too big, and it is very inconvenient to manage, and is difficult to satisfy the demand of Centralized Monitoring and debugging; And active/standby power supply works long hours, and temperature is lasting to raise, if can not in time find, is easy to cause serious security incident.
Summary of the invention
At the above-mentioned deficiency of existing dual power supply monitoring, the applicant improves through research, and a kind of dual power supply fault monitoring system now is provided, and power supply state, temperature and twin-power switch duty are monitored in real time.
The technical solution of the utility model is as follows: a kind of dual power supply fault monitoring system, it is characterized in that, comprise primary power, stand-by power source, the mains power failure signal gathering unit, stand-by power source fault-signal collecting unit, the primary power hygrosensor, the stand-by power source hygrosensor, CPU control chip and light-emitting diode display, the output terminal of described primary power connects the mains power failure signal gathering unit, the output terminal of described stand-by power source connects stand-by power source fault-signal collecting unit, described mains power failure signal gathering unit, the primary power hygrosensor, stand-by power source fault-signal collecting unit is connected with the CPU control chip by two buses with the stand-by power source hygrosensor.
Further, the utility model also comprises alarm unit, and described alarm unit is connected with the CPU control chip.
Further, the utility model also comprises communication unit, and described communication unit is connected with the CPU control chip.
Useful technique effect of the present invention is:
1) the utility model can detect three-phase voltage effective value and the phase place of duplex feeding power supply in real time by the fault-signal collecting unit, adopt the mode that dynamically shows to carry out information output to power supply state and twin-power switch duty, make the field staff to parameter informations such as the superpotential of the commit condition of switch, power supply, low-voltage, phase shortages very clear and definite sense organ understanding be arranged, and according to circumstances in time take measures.
2) the utility model comprises alarm unit and communication unit, in time remind and notify the staff during fault such as superpotential, low-voltage, phase shortage occur at dual power supply and twin-power switch, do not change, thereby make dual power supply concentrate supervision and control and management to become possibility, can effectively include national grid supervisory system or building intelligent monitor system in.
Description of drawings
Fig. 1 is block diagram of the present utility model;
Embodiment
Make an explanation below in conjunction with 1 pair of the utility model technology contents of accompanying drawing:
As shown in Figure 1, a kind of dual power supply fault monitoring system, it is characterized in that, comprise primary power, stand-by power source, the mains power failure signal gathering unit, stand-by power source fault-signal collecting unit, the primary power hygrosensor, the stand-by power source hygrosensor, CPU control chip and light-emitting diode display, the output terminal of described primary power connects the mains power failure signal gathering unit, the output terminal of described stand-by power source connects stand-by power source fault-signal collecting unit, described mains power failure signal gathering unit, the primary power hygrosensor, stand-by power source fault-signal collecting unit is connected with the CPU control chip by two buses with the stand-by power source hygrosensor.
Further, the utility model also comprises alarm unit, and described alarm unit is connected with the CPU control chip.
Further, the utility model also comprises communication unit, and described communication unit is connected with the CPU control chip.
The utility model is transferred to the CPU control chip by being arranged on fault-signal collecting unit on the dual power supply and hygrosensor with working state signal and the real time temperature of active/standby power supply, the CPU control chip adopts the mode that dynamically shows to output to light-emitting diode display monitoring result by analyzing computing, the field personnel can find trouble spot and failure cause intuitively on light-emitting diode display, and according to circumstances in time takes measures.
Further, the utility model also comprises alarm unit, active/standby power failure signal collecting unit and active/standby power supply hygrosensor are transferred to the CPU control chip with the information of gathering, the CPU control chip is analyzed, is judged the amplitude that changes, and compare with alarm setting value, when the parameter value that obtains surpasses predefined threshold value of warning, to carry out early warning, the prompting staff keeps a close eye on work or the malfunction of alarm set point, in order in time take appropriate measures, the generation of fire preventing in advance or electrical safety accident.
Further, the utility model also comprises communication unit, active/standby power failure signal collecting unit and active/standby power supply hygrosensor are transferred to the CPU control chip with the information of gathering, the CPU control chip carries out sending to the testing staff through communication unit after the computing to data message, realizes remote monitoring.

Claims (3)

1. dual power supply fault monitoring system, it is characterized in that, comprise primary power, stand-by power source, the mains power failure signal gathering unit, stand-by power source fault-signal collecting unit, the primary power hygrosensor, the stand-by power source hygrosensor, CPU control chip and light-emitting diode display, the output terminal of described primary power connects the mains power failure signal gathering unit, the output terminal of described stand-by power source connects stand-by power source fault-signal collecting unit, described mains power failure signal gathering unit, the primary power hygrosensor, stand-by power source fault-signal collecting unit is connected with the CPU control chip by two buses with the stand-by power source hygrosensor.
2. a kind of dual power supply fault monitoring system according to claim 1 is characterized in that, also comprises alarm unit, and described alarm unit is connected with the CPU control chip.
3. a kind of dual power supply fault monitoring system according to claim 1 and 2 is characterized in that, also comprises communication unit, and described communication unit is connected with the CPU control chip.
CN 201320124284 2013-03-19 2013-03-19 Dual-power-supply fault monitoring system Active CN203117404U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320124284 CN203117404U (en) 2013-03-19 2013-03-19 Dual-power-supply fault monitoring system

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Application Number Priority Date Filing Date Title
CN 201320124284 CN203117404U (en) 2013-03-19 2013-03-19 Dual-power-supply fault monitoring system

Publications (1)

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CN203117404U true CN203117404U (en) 2013-08-07

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104819783A (en) * 2015-04-23 2015-08-05 河南科技大学第一附属医院 Remote alarm device for temperature sensing of superconducting magnetic resonance water cooling machine
CN105005007A (en) * 2015-08-11 2015-10-28 漳州科华技术有限责任公司 Fault detection apparatus of redundant auxiliary power system and method thereof
CN110867331A (en) * 2019-12-03 2020-03-06 常熟开关制造有限公司(原常熟开关厂) Automatic transfer switch interlocking test method and automatic transfer switch
CN112578306A (en) * 2020-12-28 2021-03-30 施耐德万高(天津)电气设备有限公司 Three-phase power supply fault identification method based on phase angle monitoring

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104819783A (en) * 2015-04-23 2015-08-05 河南科技大学第一附属医院 Remote alarm device for temperature sensing of superconducting magnetic resonance water cooling machine
CN105005007A (en) * 2015-08-11 2015-10-28 漳州科华技术有限责任公司 Fault detection apparatus of redundant auxiliary power system and method thereof
CN105005007B (en) * 2015-08-11 2017-11-10 漳州科华技术有限责任公司 A kind of redundancy secondary power system failure detector and method
CN110867331A (en) * 2019-12-03 2020-03-06 常熟开关制造有限公司(原常熟开关厂) Automatic transfer switch interlocking test method and automatic transfer switch
CN110867331B (en) * 2019-12-03 2021-08-24 常熟开关制造有限公司(原常熟开关厂) Automatic transfer switch interlocking test method and automatic transfer switch
CN112578306A (en) * 2020-12-28 2021-03-30 施耐德万高(天津)电气设备有限公司 Three-phase power supply fault identification method based on phase angle monitoring

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