A Review on combined method for Health checking of Power Transformers

 

C. Chennakesavan

Department of Electrical and Electronics Engineering (Marine), AMET University, Chennai

 

ABSTRACT:

Transformers assume an imperative part in the productive transmission of power. Normal observing and upkeep can make it conceivable to distinguish new defects before much harm has been finished. Current frameworks can give data about the condition of a transformer, however they are either disconnected from the net or exceptionally extravagant to execute. This Monitoring framework is principally wellbeing checking gear that can secure procedure, dissects and imparts the basic parameters to the concerned authority that is at a remote spot with the assistance of Auto dialing unit. Not just the routine specialized information, for example, current, voltage, and so forth., yet likewise other basic data, for example, recurrence, oil temperature, oil level and so forth of transformers is needed by the administrators to guarantee dependable force conveyance and to help the regular choice making exercises. Subsequently, the framework builds the unwavering quality of circulation system.

 

 

 

INTRODUCTION:

Present day electric force frameworks including of force transmission and appropriation lattices comprise of bountiful number of dispersed, selfrulingly oversaw, capital-serious resources. DITRANS-A Multiagent system for integrated diagnosis of Power Transformer is described in [1]. DITRANS-A Multiagent system for integrated diagnosis of Power that resources include: Power plants, Transmission lines, Power transformers and supporting supplies. An efficient monitoring of substations using microcontroller based monitoring system is illustrated in [2]. An efficient monitoring of substations using microcontroller based monitoring system the power transformers are at the heart of electrical transmission and appropriation framework and as rivalry increments inside of the vitality area so the weight on transformer fabricating industry to enhance unwavering quality and diminish expenses of transformers Assessment of the potential costs and energy impacts of spill prevention, control and countermeasure equipments for Electric Utility substation is illustrated in [3].

 

Assessment of the potential costs and energy impacts of spill prevention, control and countermeasure equipments for Electric Utility substation. In Embedded systems Handbook, the most part power transformers have a 20-35 year outline life. Practically speaking, a transformer can achieve 60 years of valuable life in the event that it is legitimately worked and kept up. With the typical maturing, their inward condition debases, which increments the danger of disappointment. Generally, the advancement of these issues was gone with safeguard support projects consolidated with normal tests. With deregulation, it has gotten to be important to lessen support costs what's more, gear inventories, in this way there is a pattern in the business to move from customary time-based support projects to condition based upkeep. The general arrangement of an advanced force framework is that force sources and loads are several miles away.

 

DEFECTS IN POWER TRANSFORMER:

Transformer disappointment will happen because of different causes and conditions in the design and Implementation of Low Cost USB to HDMI Interface. Design and Implementation of Low Cost USB to HDMI Interface is described in [4]. Table I demonstrates the essential driver of transformer disappointments. Improved Wind Energy Penetration in a Grid Connected Power System by Wind Pumped Storage Hydropower Plant is determined in [5]. Improved Wind Energy Penetration in a Grid Connected Power System by Wind Pumped Storage Hydropower Plant reported by HSB study in the course of the most recent quite a few years and recognizes those territories where disappointment lessening endeavors can best be coordinated. The table records the most widely recognized reasons for disappointments and the rate of the considerable number of disappointments they speak to for the studies directed in 1975, 1983 and 1998. The high efficiency renewable PV inverter topology”, Indian Journal of Science and Technology is explained in [6]. The high efficiency renewable PV inverter data is exhibited here for examination purposes; however no conclusions on patterns ought to be made. Regular reasons incorporate outer variables, for example, lighting strikes, framework over-burden, short out and interior components, for example, protection disintegration, loss of winding clasping, overheating, vicinity of oxygen, dampness, and solids in the protecting oil.

 

Assessed development consumptions in 2004 for transmission and appropriation framework were $17.7 billion (EEI 2005b). Pull-in voltage study of various structured cantilever and fixed-fixed beam models using COMSOL multiphysics is described in [7]. A soft computing approach on ship trajectory control for marine applications the transformers are the essential expense segments, with the higher voltage-evaluated transformers bears the higher expenses. Any issue in the transformer not just prompts the power's intrusion supply additionally the monetary misfortunes because of it will be incredible. Pull-in voltage study of various structured cantilever and fixed-fixed beam models using COMSOL multiphysics is fundamental to identify the nascent deficiency of the transformer as ahead of schedule as conceivable. To screen the operation of force transformers, numerous gadgets have advanced, for example, Buchholz transfers on the other hand differential transfers. However, the primary weakness of these gadgets is that they just react to the extreme force disappointments which oblige expulsion of the gear from the administration. In this way, strategies for ahead of schedule identification of the glitch would be extremely profitable to keep away from blackouts. Among the leaving strategies for recognizing the early issues, broke down gas investigation (DGA) is ordinarily utilized.

 

MONITORING SYSTEM:

The Proposed checking framework appeared in Figure 1 is planned utilizing P89V51RD2 Microcontroller. The framework comprise of detecting units planned utilizing MSP 430 Processor, which gathers the discriminating parameters such as present, voltage, recurrence, oil level and its temperature from the transformer. The LCD presentation associated with the handling unit shows the comparing parameter values for any specialized help. The microcontroller is customized in such a way, to the point that it ceaselessly filters the transformer and upgrades the parameters at each case of time. The checked qualities are specifically given to one of the info port of the microcontroller, while the presentation is joined with another information port and voice player unit is associated with the yield port. The microcontroller was associated with LCD and yield port through their individual interfacing ICs.

 

Fig.1 Diagram of Power Monitoring System

A. Voltage and Current screen:

This unit checks whether the approaching voltage and current falls inside of as far as possible, on the off chance that it damages, the approaching voltage and current is given to simple pin of microcontroller with the assistance of potential transformer and current transformer individually.

 

B. Recurrence counters:

This module is planned with the assistance of IC555 Timer which is wired as a constable multivibrator. Info sign is contrasted and the standard heartbeat rate and the outcome are shown in the moving curl meter. Come about simple sign from the moving curl meter is digitized and given to the microcontroller. Since the counter utilized the seven digits to show the approaching sign, it can work as 5-decimal point MHz range recurrence counter.

 

C. Voice Player:

This piece comprises of IC STA013 based voice player. By utilizing this player we can store voice up to 100 minute, it additionally has highlight to isolate the aggregate time into coveted tracks. This operation is conceivable by allotting the status of message determination pin. The recording and playing is done utilizing record and play pin at ground status. At the point when the LCD is joined with the player, its 12 extra pushbuttons can be utilized to control the player.

 

D. Auto Dialing Unit:

The auto dialing framework comprises of transfer to dial the pre put away number to concerned individual. When the call is addressed the unit either plays a recorded message or recorded voice. By including outer push catches it is conceivable to bolster phone numbers up to twenty digits each. With the assistance of brisk dialing system, auto dialing is gone ahead.

 

CONCLUSION:

Transformer observing is a growing field of study. The checking framework exhibited in this paper can be upgraded to give more significant data on the strength of a transformer. The capability of this framework is unlimited and with further examination, the idea of a keen demonstrative for transformer or even substation level can be figured it out. The consequence of this paper, which is intended for checking discriminating parameters of the transformer, demonstrates extra ordinary guarantee on being a fruitful observing framework for high voltage transformers. The proposed configuration of the framework makes the force transformer stronger against some key force quality issues which makes the voltage, current or temperature to top. With Ethernet network, we can without much of a stretch unite and transmit essential transformer wellbeing information over TCP/IP to SCADA furthermore Browser-based Graphical Client Interface can be utilized to control the remote transformers. Henceforth the conveyance is made more secure, solid and productive by method for the proposed observing framework.

 

REFERENCES:

1.     Morais D.R, Rolim J.G and Vale Z.A, “DITRANS-A Multiagent system for integrated diagnosis of Power Transformer”, Power Tech IEEE Lausanne, pp 1917-1922, July 2007.

2.     Thiyagarajan and Palanivel, “An efficient monitoring of substations using microcontroller based monitoring system”, International Journal of Research and Review of Applied Science, Vol: 4, No.1 pp 6368, July 2010.

3.     Argonne National Laboratory, “Assessment of the potential costs and energy impacts of spill prevention, control and countermeasure equipments for Electric Utility substation”, Draft energy impact issue paper, 2006.

4.     Srinivasan. C “Design and Implementation of Low Cost USB to HDMI Interface” Indian Journal of Science and Technology 2014.

5.     R. Soundarapandian, Dr. R. Jayashree “Improved Wind Energy Penetration in a Grid Connected Power System by Wind Pumped Storage Hydropower Plant” Indian Journal of Science and Technology

6.     Bavitra, K., Sinthuja, S., Manoharan, N. and Rajesh, S., “The high efficiency renewable PV inverter topology”, Indian Journal of Science and Technology, Vol. 8, No. 14, 2015.

7.     Kumar, P.S., Elavarasi, R., Eladi, P.B. and Gopikrishnan, M., “Pull-in voltage study of various structured cantilever and fixed-fixed beam models using COMSOL multiphysics”, Indian Journal of Science and Technology, 8(14), 2015.

 

 

Accepted on 29.10.2017        © RJPT All right reserved

Research J. Pharm. and Tech 2017; 10(10):3531-3533.