Deepakkumar Yadav
ydeepak297@gmail.com Causes Of Low Power Factor Most of the machines and equipments used on A.C. supply, use induction motor as their main drive which work at lagging p.f. Transformers used at sub-stations work at lagging p.f. because they draw magnetizing current which makes total current of transformer to lag behind applied voltage. Induction heating furnaces connected … Read more
Types of Electrical Tariffs (LT and HT) Types of Tariffs : (a) Simple rate tariff (b) Block rate tariff (c) Two part tariff (d) Maximum demand tariff (e) Power factor tariff (f) Three part tariff. (g) (i) Time-off day tariff, (ii) Peak-off day tariff (h) Load factor … Read more
Energy Conservation Techniques to be Adopted to Reduce Losses in the Induction Motor Q. List out the energy conservation techniques to be adopted to reduce losses in the induction motor. Sr. No. Power loss area Efficiency improvement 1. Starter Cu loss (I21 R1) Use larger conduction – increase cross sectional area of startor winding which … Read more
What is Soft Starter & Advantages of Soft Starter Q. State four advantages of soft starter When starting, AC induction motor develops high torque than its required value at full speed. This mechanical stress is transferred to the mechanical transmission system resulting in excessive wear-tear and premature failure of chains, belts, gears, etc. Additionally, sudden rise … Read more
Optimizing Distribution Voltage To Reduce Technical Losses The drop of voltage is design consideration for the distributors the feeder size is based on the current carrying capacity of the conductor. In transmission systems, a voltage regulation of as much as 40%, in some cases be considered satisfactory. We are interested in the most economical method … Read more
Reducing Technical Losses by Reducing I2R Losses in Transmission and Distribution System Q. State any four causes of technical losses in transmission and distribution system. The I2R or copper losses of transmission and distribution system can be reduced (conserved) by the following means : Transmitting electricity at high voltage reduces the value of current and hence … Read more
By Compensating Reactive Power Flow (For Reducing Technical Losses) Q. Explain energy conservation in transmission and distribution system by using compensating reactive power. An overhead line, when loaded fully, absorbs reactive power given by (I2x) where, I is the line current and X is the reactance of the line in ohms per phase. On light … Read more
Energy Conservation Equipment In this section we are going to learn three important equipments namely: Maximum demand controller KVAR controller Automatic power factor controller( APFC) Microprocessor based centralized control equipment.
Microprocessor-Based Centralized Control Equipment Main equipments of the system : Sensors A, B, C 3 numbers, A to D converter I/O port Microprocessor control unit, SI ROM and RAM Actions (functions) : For getting the values / levels of quantities to be measured 3 sensors A,B and C are used. The sensors are for position, … Read more
Comparison of Characteristics of Energy Efficient Motor with Standard Motor Furthermore, energy efficient motors have lower operating temperature and noise levels, greater ability to accelerate higher-inertia loads and are less affected by supply voltage fluctuations.