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

The following tests are the type test ofelectrical powercable.Physical tests for insulation and sheath Tensile strength and elongation at break Aging in an air oven Aging in air bomb Aging in an oxygen bomb Hot set Oil resistance Tear resistance Insulation resistance High voltage (water immersion) test Flammability test (only for SE-3, SE-4) Water abortion test (for insulation) Persulphate test (for copper ) Annealing test(for copper) Tensile test(for Aluminium) Wrapping test(

Electric power can be transmitted or distributed either by overhead transmission systems or by underground cables. Cables are mainly designed for a specific requirement. Power cables are mainly used for power transmission and distribution purposes. It is an assembly of one or more individually insulated electrical conductors, usually held together with an overall sheath. The assembly is used for transmission and distribution of electrical power.Electrical power cables may be installed as permane

What are Fiber Optics Cables Used For?Fiber optic cables (also known as optical fiber cable) are network cables that contain many strands of fine glass fibers known as optical fibers, which are kept well-insulated within the body of the cable. These cables are created for the use of long-distance, high-performance data networking, and telecommunications. Signals are transmitted through these cables by firing pulses of light through these optical fibers.In comparison to a copper-wired cable, fibe

What is a Power System?An electric power system is defined as a network of electrical components used to supply, transfer, and consume electric power. The supply is done through some form of generation (e.g. a power plant), the transfer is done through a transmission (via a transmission line) and distribution system, and the consumption can be through residential applications such as powering the lights or air conditioning in your home, or via industrial applications such as the operation of lar

The connection of several generating stations in a network of particular transmission voltage level is commonly known as electrical grid system. By interconnecting different power generating stations we can solve various difficulties arise in power system. The structure, or “network topology” of a grid can vary depending on the the load and generation characteristics, constraints of budget and the requirements for system reliability. The physical layout is often forced by the geology and land av

Power system engineering forms a vast and major portion of electrical engineering studies. It is mainly concerned with the production of electrical power and its transmission from the sending end to receiving end as per requirements, incurring a minimum amount of losses. The power often changes due to the variation of load or due to disturbances.For these reasons, the term power system stability is of utmost importance in this field. It is used to define the ability of the system to bring back i

The ability of a synchronous power system to return to stable condition and maintain its synchronism following a relatively large disturbance arising from very general situations like switching ON and OFF of circuit elements, or clearing of faults, etc. is referred to as the transient stability in power system. More often than not, the power generation systems are subjected to faults of this kind, and hence its extremely important for power engineers to be well-versed with the stability conditio

As an introduction, we need to know about power state stability. It is really the capability of the system to return to its steady state condition after subjected to certain disturbances. We can now consider a synchronous generator to understand the power system stability. The generator is in synchronism with the other system connected to it. The bus connected to it and the generator will have same phase sequence, voltage and the frequency. So, we can say that the power system stability here is

What Are Harmonics?Harmonics are defined as an unwanted higher frequency component that is an integer multiple of the fundamental frequency. Harmonics create a distortion in the fundamental waveform.Harmonics usually have a lower amplitude (volume) than the fundamental frequency.What is Amplitude?The maximum value (positive or negative) of an alternating quantity is known as its amplitude.Sources of HarmonicsHarmonics are produced due to the non-linear loads such as an iron-cored inductor, recti

What is Admittance?Admittance is defined as a measure of how easily a circuit or device will allow current to flow through it. Admittance is the reciprocal (inverse) of impedance, akin to how conductance and resistance are related. The SI unit of admittance is the siemens (symbol S).To reiterate the above definition: let us first go through some important terms which associated with the topic admittance. We all know that resistance (R) has only magnitude but no phase. We can say that it is the m