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36results about How to "Fault found" patented technology

Filed tester for acquisition system for electricity consumption information and test method thereof

The invention discloses a field tester for an acquisition system for electricity consumption information and a test method thereof. The field tester comprises a microprocessor, a display unit, a power supply module, a storage unit, a communication interface unit and an input unit, wherein the microprocessor is internally provided with a data processing program and is respectively connected with the display unit, the power supply module, the storage unit, the communication interface unit and the input unit; the input unit is used for receiving an external instruction and transmitting the external instruction to the microprocessor; the microprocessor is used for transmitting the external instruction to the communication interface unit; the communication interface unit communicates with a collector and a smart meter and can be used for transmitting the acquired data to the microprocessor; and the microprocessor is used for processing the acquired data, storing and displaying the data and the processing result. The field tester for the acquisition system for the electricity consumption information and the test method thereof which are disclosed by the invention have the advantages of quickly and efficiently finding faults of an intelligent meter reading system, improving the operation reliability and safety of the intelligent meter reading system and the like.
Owner:XUANCHENG POWER SUPPLY COMPANY OF STATE GRID ANHUI ELECTRIC POWER +1

Smart accumulator and remote management system thereof

PendingCN108400395AAccurately reflect changes in internal resistanceBalancing Measurement CostsCells structural combinationCommunication interfaceInformation processing
The invention discloses a smart accumulator and a remote management system thereof. The smart accumulator comprises multiple accumulator monomers; any accumulator monomer comprises a battery upper cover; a selector switch and a communication interface are arranged on the battery upper cover; multiple accumulator monomers are in cascade connection through the communication interface so as to form an accumulator pack; the interior of any accumulator monomer contains an integrated chip, and the integrated chip is used for online monitoring the voltage, the internal resistance and the temperatureof the accumulator monomer in real time; the integrated chip comprises an A/D chip, a CPU processor, a voltage measurement circuit, an internal resistance measurement circuit, and a temperature measurement circuit; the A/D chip is connected with the CPU processor; and the CPU processor is connected with the communication interface. The smart accumulator disclosed by the invention can reflect the own operation working condition of the accumulator in real time so as to perform the voltage balance; and meanwhile, a fully functional accumulator professional information processing and comprehensiveanalysis internet information platform is provided so as to effectively improve an operation status of the accumulator, obviously improve the power supply reliability of the accumulator, and prolongthe life of the accumulator.
Owner:STATE GRID CORP OF CHINA +2

Method and device for monitoring gas turbine gas path performance

The invention provides a method and a device for monitoring gas turbine gas path performance. The method comprises steps: operation parameter values of multiple groups of gas paths when the gas turbine is in a healthy operation state are acquired; according to the operation parameter values of multiple groups of gas paths and a calculation formula, performance parameter values of multiple groups of gas paths in one-to-one correspondence with the operation parameter values of multiple groups of gas paths are obtained through calculation; on the basis, a regression equation, different from the calculation formula, for the gas path performance parameters relative to the gas path operation parameters is obtained; the real-time gas path operation parameter values of the gas turbine are acquired, and a first gas path performance parameter value is obtained according to the regression equation; according to the real-time gas path operation parameter values of the gas turbine and a calculation formula, a second gas path performance parameter value is obtained through calculation; and according to the first gas path performance parameter value and the second gas path performance parameter value, the gas path performance attenuation parameter value of the gas turbine is obtained through calculation. The method and the device provided by the invention can timely and effectively detect fault of the gas turbine.
Owner:PIPECHINA SOUTH CHINA CO

Performance on-line monitoring device for power distribution switch cabinet lightning arrester and monitoring method thereof

The invention discloses a performance on-line monitoring device for a power distribution switch cabinet lightning arrester and a monitoring method thereof. The monitoring device comprises a microprocessor circuit, temperature signal conditioning circuits, current signal conditioning circuits, an in-cabinet temperature signal conditioning circuit, a display circuit, a keyboard circuit, a power supply circuit, a communication interface circuit in bidirectional communication connection with the microprocessor circuit, temperature sensors, current sensors and an in-cabinet temperature sensor; the temperature signal conditioning circuits, the current signal conditioning circuits, the in-cabinet temperature signal conditioning circuit, the display circuit, the keyboard circuit and the power supply circuit are in one-way communication connection with the microprocessor circuit; the temperature sensors and the current sensors are arranged on a lightning arrester in a power distribution switch cabinet, and the in-cabinet temperature sensor is arranged in the power distribution switch cabinet; and the microprocessor circuit performs on-line monitoring and a performance judgment of the lightning arrester according to acquired monitoring data. Accurate, timely and efficient on-line monitoring of performance of the lightning arrester of the power distribution switch cabinet is achieved, and, through utilization of a total leakage current of the lightning arrester and a combination with temperature data of a body of the lightning arrester, whether a fault occurs in the lightning arrester is comprehensively determined, so safe operation of switch equipment is ensured.
Owner:HOHAI UNIV CHANGZHOU

Agricultural vegetable seeding machine

The invention discloses an agricultural vegetable seeding machine which comprises a vehicle body, wherein a traction rod is arranged on the left side of the top of the vehicle body, a driving box is arranged at the top of the left side of the vehicle body, a transmission box is arranged on the right side of the driving box, the transmission box is connected with the vehicle body, a fertilizer boxis arranged on the right side of the transmission box, and the fertilizer box is connected with the vehicle body. According to the agricultural vegetable seeding machine disclosed by the invention, the driving box, the transmission box, the fertilizer box and a seeding box are matched; ditching, seeding, fertilizing and backfilling are integrated on one set of equipment; the agricultural vegetableseeding machine has multiple functions and wide application; working strength of mutually ditching, seeding, fertilizing and backfilling of workers is reduced, and physical fatigue of the workers isovercome; the agricultural vegetable seeding machine has the advantages of simpleness in operation, convenience in movement and transportation, low transportation cost and suitability for being popularized and applied; by means of the agricultural vegetable seeding machine, work efficiency of workers is improved, planting manual cost is reduced, and a yield is improved.
Owner:张程翔

Rapid detection method of wind power gear box lubrication oil way system and detection apparatus thereof

A rapid detection method of a wind power gear box lubrication oil way system and a detection apparatus thereof are disclosed. The rapid detection method comprises the following steps that: an outer oil supply way is externally connected with the wind power gear box lubrication oil way system; through the outer oil supply way, heated lubricating oil is firstly supplied into the wind power gear box lubrication oil way; oil temperatures of each oil temperature point of the wind power gear box lubrication oil way are measured; then the cooled lubricating oil is supplied into the wind power gear box lubrication oil way; and the oil temperatures of the each oil temperature point of the wind power gear box lubrication oil way are measured; during an above process, if the oil temperatures of the each oil temperature point are uniformly decreased, the lubrication oil way of the wind power gear box is unobstructed; if the oil temperature of one oil temperature point during the above process does not change obviously, the oil way of the oil temperature point is not clear or obstructed. The measure apparatus comprises an externally connected oil supply pump, at least one heating device and one cooling device which are connected in series. And the above devices are connected to the lubrication oil way system of the wind power gear box together and form an externally connected lubrication oil way cycle with an externally connected oil pool. Usage is simple, rapid, accurate and safe. A trial run efficiency can be greatly improved so that a capacity can be increased. The method and the apparatus have many other characteristics.
Owner:HANGZHOU ADVANCE GEARBOX GRP

A method and device for monitoring the gas path performance of a gas turbine

The invention provides a method and a device for monitoring gas turbine gas path performance. The method comprises steps: operation parameter values of multiple groups of gas paths when the gas turbine is in a healthy operation state are acquired; according to the operation parameter values of multiple groups of gas paths and a calculation formula, performance parameter values of multiple groups of gas paths in one-to-one correspondence with the operation parameter values of multiple groups of gas paths are obtained through calculation; on the basis, a regression equation, different from the calculation formula, for the gas path performance parameters relative to the gas path operation parameters is obtained; the real-time gas path operation parameter values of the gas turbine are acquired, and a first gas path performance parameter value is obtained according to the regression equation; according to the real-time gas path operation parameter values of the gas turbine and a calculation formula, a second gas path performance parameter value is obtained through calculation; and according to the first gas path performance parameter value and the second gas path performance parameter value, the gas path performance attenuation parameter value of the gas turbine is obtained through calculation. The method and the device provided by the invention can timely and effectively detect fault of the gas turbine.
Owner:PIPECHINA SOUTH CHINA CO

Diesel generating set with protection device

The invention discloses a diesel generating set with a protection device in the technical field of diesel generating sets. The diesel generating set comprises a protection room. The diesel generatingset is arranged on the top of an installation table. An open groove is formed in the left side of the top of the protection room. A motor fixing plate is arranged on the top of the protection room. Amotor is arranged on the top of the front end face of the motor fixing plate. The bottom of a transmission rod is arranged in the open groove. Fan blades are arranged at the bottom of the right side of the transmission rod and the bottom of the left side of the transmission rod correspondingly. The wrapping type protection room is arranged on the outer portion of the diesel generating set. The diesel generating set is protected through the protection room so that the situation that the diesel generating set makes direct contact with the outside world and injures workers accidentally cannot becaused. The open groove is formed in the left side of the top of the protection room, a fan is arranged in the groove, and therefore it is avoided that after the diesel generating set works for a longtime, the temperature in the protection room is excessively high; and meanwhile an observation window and a maintenance door are arranged on the front end face of the protection room, and faults of the diesel generating set can be conveniently, directly and rapidly found and maintenance can be conducted in time.
Owner:扬州市东华星动力科技有限公司

Access control system power-off protection circuit and system thereof

The invention relates to an access control system power-off protection circuit and a system thereof. The power-off protection circuit comprises a charging interface, an output interface, a first capacitor, a second capacitor, a first super capacitor, a third capacitor, a second super capacitor, a three-terminal voltage stabilizer and an anti-discharge diode, a second pin of the charging interface is connected with an input end of a three-terminal regulator and one end of a first capacitor, an output end of the three-terminal regulator is connected with a positive electrode of an anti-discharge diode and one end of a second capacitor, and a negative electrode of the anti-discharge diode is connected with a positive electrode of a first super capacitor, one end of a third capacitor, a positive electrode of a second super capacitor and a first pin of the output interface; and the first pin of the charging interface is connected with the second pin of the output interface, the other end of the first capacitor, the grounding end of the three-terminal regulator, the other end of the second capacitor, the negative electrode of the first super capacitor, the other end of the third capacitor and the negative electrode of the second super capacitor are connected with a connecting line of the second pin of the output interface and the first pin of the charging interface. The problems of high risk, instability and the like of the existing access control standby power supply can be solved.
Owner:ZHONGHANG WEAK ELECTRICITY SYST ENG BEIJING
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