What is Metering & Energy Metering in Electrical Installations? Electric Parameters to Monitor Control and monitoring of electrical installations and equipments requires electric parameters to be monitored and that their values could be read by operators (local and remote) in meters and in control microprocessed units in central operating stations and stored. Common monitored electric parameters are: Voltage (U, V) …
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Test a Diode by Analog & Digital Multimeter Troubleshooting Electronic Devices & Components Troubleshooting in electronic and electrical engineering is an important part and one must know the basic skills and knowledge about the components to design and troubleshoot a circuit. It is advisable to test component before assembling and placing in a circuit. Sometimes, we get unexpected results and …
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Overhead Lines Faults & Protection in Power System Common Faults in Overhead Lines The most common causes of faults in overhead lines are: Aircraft and cars hitting lines and structures Birds and animals Contaminated insulators Ice and snow loading Lightning Partial discharges (corona) not controlled Punctured or broken insulators Trees Wind Related Article: Power Transformer Protection & Faults Overhead Lines …
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Electrical Protection Units And Systems Introduction to Electrical Protection Systems HV, MV and LV[1] electric installations and equipments are subjected to internal and external faults that can cause serious damages in persons and other equipments. To avoid and to minimize the consequences of those faults protection devices associated to equipments that are able to break electric current are required. For …
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Maintenance of Power Transformer – Transformer Diagnostic and Monitoring Introduction Being transformers static machines without any moving and turning parts, they are very reliable machines, and if maintained properly, can last for 40 years or more. Also they do not trip or blow when oven-stressed (except under extreme conditions), transformers are frequently overloaded and allowed to operate well beyond its …
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Current Transformers (CT) – Construction, Types, Installation, Characteristic & Applications What is Current Transformer (CT) ? Current transformers (CT) are used in High Voltage (HV) and Medium Voltage (MV)[1] installations to give an image of electrical current to protection relays and units and metering equipment and they are designed to provide a current in its secondary proportional to the current …
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An Introduction to Insulating And Dielectric Materials Definition of Insulating and Dielectric Materials An electrical insulating material can be defined as the material that does not allow electric current to pass through it. For electrical applications a particular category of insulating materials is used to separate electrically the conducting parts of equipment from each other and from earthed and “no …
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An Overview of Emergency Generator Set (Manuel Bolotinha) Introduction to Emergency Generator Set Hospitals, airports, shopping malls and office buildings, just to mention some examples, are very sensitive, in what concerns safety of people and goods, to power outages caused by faults in medium (MV) and low voltage (LV) distribution networks and even in high voltage (HV[1]) transmission networks. When …
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What is Electronic Counter and Types of Counters What is Counter? A Counter is a digital logic device in computing to store and display the specific event continuously according to the configuration & programming. Sequential digital logic circuit is a common type of counter consist of single input line (Clock) and number of output lines. The value of output lines …
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What is Atmega Atmel AVR Microcontrollers ? Introduction to ATMega Microcontrollers ATMega Microcontrollers belong to the AVR family of microcontrollers and is manufactured by Atmel Corporation. An ATMega Microcontroller is an 8-bit microcontroller with Reduced Instruction Set (RISC) based Harvard Architecture. It has standard features like on-chip ROM (Read Only Memory), Data RAM (Random Access Memory), data EEPROM (Electrical Erasable …
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