Transformer temperature monitoring by wireless to control room pdf

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These values display on HMI. This system also detects any unwanted movable object entering in warehouse by using Proximity sensor. PLC is the programmable logic controller used in industries for automation. In our project PLC used as a controller part.

HMI is human-machine interface. IF2OF2 the input. At another side Proximity Sensor is also given to the analog digital module takes only digital values from the sensor. PLC as an input. The output of both the sensors is taken by Temperature and humidity transmitter converted the PLC for further processing.

Proximity sensor is used to detect the other via Ethernet cable. Temperature and Humidity value unwanted movable object in ware-house. In many industries, which is sensed by HTS sensor stored in PLC but that is not we can use this application for monitoring temperature and visible so we used HMI for display these values. At the Output humidity. By using this we can monitor the temperature in side of PLC detects the output using cooling Fan, Hooter, and many more small scale industries, ware house, green house and LED.

A PLC is a digital computer used for Volt. The proximity sensor is given to the PLC which is used to control of hydraulic drives, pneumatic systems, conveyor detect human presence in Ware-House. A proximity sensor is systems and various industrial drives using electromechanical a sensor which is used to detect the presence of any nearby automation. A PLC is 3. A purpose of PLC is to monitor the process, The input of our system is HTS sensor and it is a parameters and adjust process operation accordingly.

The temperature and humidity transmitter. In the above fig and temperature range is degree celsius. Analog card is HTS, i. Analog card takes an only analog card from the sensor. This values then software for Rockwell Automation networks and devices.

This programming is done on RS-Logix software. RESULT HTS sensor which is temperature and humidity sensor is We are implementing a warehouse monitoring system that has connected to the IN0 of analog card and it works on the 24V temperature and humidity sensor and a proximity sensor which power supply.

Start and Stop Push movable object in the warehouse then we get the display result button work with the two terminals one terminal is connected to of temperature and humidity values on HMI Human Machine the 24v dc connecting tray and other terminal is connected to Interface.

When the temperature increases for cooling FAN logic controller is used. Proximity sensor input is connected to will ON. Temperature and humidity sensor work on the gets ON, Using this system our warehouse will be secured. Sensor output we have connected to the PLC Input. PLC 6. Our output side three parameters are connected which is September This particular sensor has gives the precise current measurement for both AC and DC three pins; a positive, a ground, and a signal as illustrated in signals.

Thick copper conductor and signal traces allows for Figure 1. This is a linear temperature sensor. A change in survival of the device up to 5 times overcurrent conditions. The TMP36 sensor has a that varies linearly with the sensed current. Figure 3. Current sensor ACS It receives the real-time analog data from the Figure 1.

Temperature sensor TMP The sensor is connected as such that the real temperature, voltage and current values can follows. The first pin of the sensor is connected to 5 V, the second to the ADC of the microcontroller and the third to be obtained from the sensors output signals.

The processed information from the microcontroller is wirelessly transmitted so it can be viewed remotely. The module uses the These modules allow for a very reliable Figure 2. Interfacing TMP36 to microcontroller. Point to point and The temperature sensor is installed at the transmitter side multi-point networks are also supported. The analog signal from the sensor is converted to a digital signal by the microcontroller at the transmitter 2.

Atmegap Microcontroller side. The microcontroller then sends the digital signal serially Aside the digital and the analog pins, there are other pin to the XBEE module for onward wireless transmission. Two 2 of such pins are used to provide 2. Current Sensor oscillation to the microcontroller. This is to provide a clock Protection of power transformers against excess current is pulse that is needed for synchronization so that crucial.

The physical world. AVCC is for power supply. The between 1. ADC needs its own power supply in order to work. With this, the to convert an analog signal to its corresponding digital value.

AtmegaP Pin-Out. It was interfaced with the 2. Two 2 XBEE modules are used in this design. The module helps to exchange information wirelessly system. One at the transmitter unit and another at the receiver from the transmission side of the system to the receiving side. The specifies the physical layer and media access control for low- XBEE module is interfaced to the microcontroller as shown in rate wireless personal area networks.

Interfacing XBEE to the microcontroller. The XBEE modules operate at a voltage of 3. It can be observed from Figure 5 microcontroller will destroy them. This is why a logic level that the logic level converter is powered by both 5 v and 3. Figure 6 converts the 5 V from the controller to 3. Transmitter circuit. Receiver Unit Figure 7. LCD screen. As the microcontroller and the LCD. Figure 8 shows the The LCD used is a character display.

The character display receiver circuit. Receiver circuit. Figure 9 shows the assembled transmitter circuit Figure 9. Assembled transmitter circuit.

Figure 10 shows the assembled receiver circuit. Figure Assembled receiver circuit. Program Development receiver unit. After the information has been relayed wirelessly from the transmitter unit, the same information is received by This section depicts the process of developing the the XBEE at the receiver unit and sent to the microcontroller. Flowcharts have been used to show the details of The microcontroller then segregates the data appropriately the main program leading the wireless monitoring of the using synchronizing characters sent from the transmitter.

With the help of these characters, the sequential flow behind the software program that run in the microcontroller is able to differentiate between the data transmitter unit. When the system is turned on, the relating to the physical quantities mentioned above. The microcontroller at the transmitter unit system reads and microcontroller then processes the data for the various process signals from the temperature, current and voltage quantities and displays the results on the LCD screen.

Receiver flowchart. Results and Discussions The results are discussed and interpreted in this section. Transmitter flowchart. The flowchart in Figure 12 illustrates the logic and sequential flow behind the software program that run in the Table 1. Data collected from conducted experiments. Furthermore, a cost analysis is Table 2. Conclusions the effectiveness of the design. In summary, this paper presented the design and the construction of a microcontroller-based system capable of monitoring voltage, current and temperature of a distribution transformer and transmit data wirelessly.

The developed product makes use of XBEE modules to transfer data from one point to another. This method helps the maintenance officers to have a real time information on the health of the transformers without having to be physically present on the field. Upon detection of any abnormality, one can take action immediately to prevent any disastrous failure of the transformers.

In a distribution network, there are many distribution transformers and associating each transformer with such system, can improve upon the speed of fault detection and therefore reduce transformer downtime.

The time delay for data transfer between the transmitter and the receiver is lesser than a second. This makes the system very reliable and efficient. With modern technology it is possible Figure Voltages recorded for both manual and XBEE systems. The challenge is to balance the functions of the monitoring system with its cost and reliability. References [1] M. Arshad, S.

Islam, and A. PowerCon November, p. Arvind, S. Khushdeep, K. Suwanasri, E. Chaidee, and C. Current recorded for both manual and XBEE systems. Murugan and R. Rafa, S.