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Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

Access free engineering resources from IEE Business—covering power design, circuit layout, equipment selection, and troubleshooting. Expert-developed guides help engineers, procurement, and project teams make better decisions. Stay ahead on smart grids, renewables, efficiency, and AI tools. Improve reliability, reduce downtime, and enhance outcomes with real-world solutions. Explore our knowledge hub today.
What are the add-ons that use AC?
FuseFeatureThe fuse is a simple and effective circuit protection element. When the current flow in the circuit is large, the melt in the fuse (such as the fuse) will be blown due to overheating, thus cutting off the circuit and preventing the equipment in the circuit from being damaged due to overcurrent. In the use of AC power, it can protect various electrical equipment, lines, etc. connected to the AC power supply. For example, in the home circuit, if a short circuit fault occurs in an electr
09/28/2024
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What are the main components of electronic ballasts and how do they work together?
Electronic Ballast is a device used to control the current and voltage of a gas discharge lamp (such as a fluorescent lamp, HID lamp, etc.). Compared to traditional magnetic ballasts, electronic ballasts are smaller, lighter, more efficient, and can provide better bulb life and light output quality. The main components of the electronic ballast and the way they work together are as follows:Major componentRectifier (Rectifier)The rectifier is responsible for converting alternating current (AC) in
09/27/2024
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Reasons for using low voltage current supply
People choose to use low voltage/low current power supplies instead of high voltage/high current power supplies in many cases, mainly for safety, efficiency, economy and applicability considerations. Here are some of the main reasons:SecurityReduce the risk of electric shockLow voltage power supplies have a lower risk of shock than high voltage power supplies. The safe voltage of the human body is generally considered to be below 36 volts (depending on environmental humidity and other factors),
09/27/2024
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What is the main role of high voltage current transformer?
High Voltage Current Transformer (HVCT) is a key device used to measure and monitor current changes in high voltage power systems. Its main role is to provide a safe and reliable way to detect and measure current without direct contact with high-voltage circuits. The following are the main roles of high voltage current transformers:Current measurementThe core function of the high voltage current transformer is to measure the current in the high voltage circuit. Because the current in high-voltag
09/27/2024
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What are the causes of typical hazards in low-pressure systems?
Low Voltage (LV) systems generally refer to electrical systems with operating voltages below 1000 volts (V) alternating current or 1500 volts direct current. Although low pressure systems are safer than high pressure systems, there are several potential hazards. Understanding these risk factors can help you take preventive measures to keep people and equipment safe. The following are common causes of danger in low-pressure systems:Electrical injury Electric shock: Direct contact with a live cond
09/27/2024
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What is the work of an LC filter inverter?
LC filter inverter is an electrical circuit that combines the functions of inverter and filter. The main job of the LC filter inverter is to convert direct current (DC) power from a battery like a battery into alternating current (AC) power suitable for driving electrical devices, while filtering the output to improve the quality of the AC waveform. The following is a detailed description of the operation of the LC filter inverter:LC filter inverter componentsInverting partThe inverter section c
09/27/2024
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Which appliances can run on single-phase electricity instead of three-phase electricity?
Single Phase Electricity is a form of alternating current system that usually consists of a phase line (live line) and a neutral line (neutral line) with a voltage of 220V or 230V (depending on the region). Single-phase electricity is mainly used in homes, small business establishments, or occasions that do not require a large amount of electricity. Here are a few common appliances that can run on single-phase electricity:Household appliance Lighting fixtures: such as LED lamps, fluorescent lamp
09/27/2024
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What is needed for a power supply to deliver more power in a circuit?
To increase the power delivered by a power supply in a circuit, you need to consider several factors and make appropriate adjustments. Power is defined as the rate at which work is done or energy is transferred, and it is given by the equation:P=VI P is power (measured in watts, W). V is voltage (measured in volts, V). I is current (measured in amperes, A).Thus, to deliver more power, you can either increase the voltage V or the current I, or both.Here are the steps and considerations involved:I
09/27/2024
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Can you explain the concept of voltage difference and its units?
Voltage difference, also known as electric potential difference, is a measure of the work done per unit charge to move a test charge between two points in an electric field. It represents the energy required to move a unit positive charge from one point to another within an electric circuit or field. Voltage difference is what drives the flow of electric current in a circuit.When we talk about voltage difference, we are essentially talking about the difference in electric potential between two p
09/27/2024
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What is the purpose of parallel circuit breakers?
Parallel circuit breakers usually refer to circuit breakers used for parallel operation in power systems. Their purpose is to achieve the simultaneous operation of multiple circuit breakers to achieve load distribution, increase system capacity, and enhance redundancy and flexibility. The following are the main purposes and application scenarios of parallel circuit breakers:Load distributionIn large power systems, a single circuit breaker may not be sufficient to handle the full load. By connect
09/26/2024
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