It is imperative that we conserve the stocks of hydrocarbons and eke them out until an alternative type of energy, preferable renewable can substitute them. This document must fully disclose all legalities associated with this type of investment and the individual drilling prospect being sold. Q: Which type of motor is used in trains, what is the rating of supply used explain Working principal? 220v AC rating. Why earth pin diameter is higher than other two pin? A: Generator and alternator are two devices, which converts mechanical energy into electrical energy. Q: What happens if we connect a capacitor to a generator load? A: At no load Synchronous Impedance of the alternator is responsible for creating angle difference. A: For lighting loads, neutral conductor is must and hence the secondary must be star winding.The lighting load is always unbalanced in all three phases. Q: Why Delta Star Transformers are used for Lighting Loads? So delta / star transformer is used for lighting loads.

To minimize the current unbalance in the primary we use delta winding in the primary. A: Tapings are connected to high voltage winding side, because of low current. Whether it should be high or low? In circuit where measurements of high voltage and high current is involved they are used there. Q: Explain the working principal of the circuit breaker? That y always vaccum used as in HT breaker and air used as in LT. The humidity of the air in your home should be between 30 and 50%, anything lower than this giving dry eye and skin, a higher level encouraging condensation with misting of the windows. A: It is the property of a cable by virtue of it can withstand the applied voltage without rupturing it is known as insulation level of the cable. It has to be ideally 1. if it is too low then cable over heating & equipment overloading will occur. If we connect tapings to low voltage side, sparks will produce while tap changing operation due to high current. A: Power factor should be high in order to get smooth operation of the system. Same system of the operation followed in PT but it is for measuring voltage.

They work on the same principle of transformer, which is based on linkage of electromagnetic flux produced by primary with secondary. Both have the same principle of electromagnetic induction, the only difference is that their construction. Nevertheless, a roustabout on an oil field will have different ways to do his job compared to a roustabout on an offshore oil rig. Gibson, Dunn & Crutcher’s Oil and Gas Practice Group advises the world’s leading oil and gas exploration, development and production companies, oil field services and equipment companies, pipeline and other midstream companies, and downstream entities. Coupled with our market-leading management information technology, this ensures that we are leading the way in Oil & Gas recruitment… as we always have been. Even though less grease and oil is produced there is still some, but they are not difficult to maintain. Copper losses are caused by the resistance of the wire (I2R).

At some point the tipping point will be reached and it will be too late to make effective corrections to the problems that man has caused. Royalty – The royalty relates to the amount of interest you will receive in the well related to how much land you own. Next step is to negotiate the mineral leases bonus amount. 8Aand this result will be given to ammeter and after measuring 8A we can calculate the primary current. Can we measure over voltage and over current by measuring current only? Hysterics loss is constant for a particular voltage and current. Copper loss is a constant after the coil has been wound and therefore a measurable loss. A: Power losses in rotating electrical machines are Copper losses, core losses, mechanical losses and stray losses. Q: What are the power losses in rotating electrical machines? It is the ratio of true power to apparent power.