Applications of Insulating Materials Insulating fluids (gases and liquids) provide insulation between phases and between phase and grounded parts of electrical equipment. These also carry out heat from the windings of the electrical equipment. However, solid insulating materials are used only to provide insulation. While describing the dielectric and other properties of various insulating materials, […]
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Properties of Insulating Materials The main requirements of the insulating materials used for power apparatus are: Vulcanized Rubber Rubber in its natural form is highly insulating but it absorbs moisture readily and gets oxidized into a resinous material; thereby it loses insulating properties. When it is mixed with sulfur along with other carefully chosen ingredients
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Voltage Distribution Over Suspension Insulator String Suspension Insulators: As the voltage level increases, pin-type insulators become very bulky and their cost also increases rapidly. Hence the most popular insulators used for very high voltage transmission lines are suspension-type insulators. These insulators have several porcelain disc units. These units are connected in series with the help
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1. Corona is (a) partial breakdown of air. (b) complete breakdown of air. (c) sparking between lines. 2. Which of the following statements is true regarding corona ? (a) Corona takes place at a voltage lower than breakdown voltage. (b) Corona takes place at a voltage higher than breakdown voltage. (c) Corona is a current
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Testing of Power System Insulators The insulators are tested according to the standards. The following tests are performed while testing an insulator : These tests are further grouped into three classes according to the standards which are, Type tests: These tests are performed to judge the design and specified ratings of the insulator. These tests
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Ever had trouble choosing the right thermometer for your project? Well, you’re not alone. This post will go through both analog and digital thermometers, showing you their benefits. Hang on tightly to yourself; This will be exciting. Key Takeaways Overview of Temperature Sensors Temperature sensors like thermometers for your appliances. They monitor how hot or
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In modern power systems, the power flow in the transmission lines can be controlled with the use of power electronics. The Flexible A.C. Transmission Systems (FACTS) give solutions to the problems and limitations that were introduced in the power system with the introduction of power electronics-based control for reactive power. The FACTS technology making use
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What is a Time Delay Relay? A time delay relay is a common and useful device in electrical control systems. It can control the switching behavior of a circuit according to a preset time delay, thus realizing specific functional requirements. This article will introduce the working principle of time delay relay, connection and its wide
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What are Terminal Blocks? In industrial applications, terminal blocks are isolated connections used to interconnect parts of electrical circuits. They have a clamping mechanism and an insulating frame. Among its various applications are machine tools, control cabinets, and electrical panels, where it is utilized to create dependable electrical connections. DIN rails are commonly used for
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Inverters for Wind Energy System The inverter is an indispensable component of virtually all electric-generating renewable energy systems. In this article, we’ll discuss the types of inverters and the functions they provide in a wind energy system. Inverters come in three basic types: Grid-Connected Inverters Today, the vast majority of renewable energy systems — both
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