Interested to Buy Any Domain ? << Click Here >> for more details...
what is the procedure for erection of a transformer
- 1 Answers
- 4708 Views
- TCE, I also Faced
- E-Mail Answers
Answer Posted / debasis sahoo
During installation of Transformer on a Pole mounting structure, following checks should be made:
Ensure that the base channel of transformer is at height complying to IEC Standards:
a) Height of top of HV bushing from ground for pole mounted transformer should be 4.572 meters minimum (15 Ft)
b) Height of top of HV bushing from ground for plinth mounted transformer should be 2.75 meters minimum (8 Ft)
Ensure that base channel is horizontally leveled
Avoid jerky movement of the transformer while lifting it upwards during installation
During installation ensure that the HV bushings of the transformer are on the DO unit (or HG fuse unit) side of the structure
After installation of transformer, also check that other allied equipments such as AB switch, Horn Gap fuse units, DO Fuse sets, Lightening arrestor etc. are fitted at appropriate positions as per the applicable drawing issued by the utility.
Use PVC unarmoured cable (3 ½ core) of appropriate size and length for LV side. Ensure that the lugs are appropriately crimped at the ends.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
why transmission is only 3 phase and not 2 or 4 or poly phases
1- XC and the RC time constant are both measures of the reaction of C to a change in ____? 2-The power factor is a numerical ratio with a value between 0 and 1 equal to the ______________ of the phase angle. 3-When V and I are out of phase because of reactance, the product of V times I is called ______________ power 4-For _____________ inductors, the branch currents can be added algebraically. 5- The ______________ power in watts can be calculated as I^2R 6-Calculate XL with L = 30mH and f = 1kHz ( I have Xl=2piFL 2*3.141592653*1kHz*30mH =188 ohms Please check) 7-A parallel RL circuit has the values, R = 5kohms, XL = 5kohms. A voltage source of Vt = 10Vrms is connected in parallel to R and L. Determine the total current, It delivered by the voltage source Vt. 8-A series RC circuit has R = 1Mohm and C = 1microF. How long would it take for the capacitor to fully discharge if it is initially fully charged? 9-A circuit has real power = 300W and an apparent power of 500VA. Determine the power factor and phase angle. 10-The time constant for an LR series circuit is T = 0.1s and R = 10ohms. Calculate the inductance L.
Can we use BS 6651 and BS EN 62305 standards for computer room lightning ptotection in substation?
WHAT IS THE MEANING OG (li = 7 In)
what is mean by dual digital protection in the relay field?
what is the interrelation between voltage current torgue speed and magnetic flux in case of different types of electric motors
Why hydropower is called renewable source of energy?
why ahould you show client/engineer activities clearly on the project plan
HOW can i REuse the fused MLL LAMPS & GLS LAMPS at our factory
How to reduce -234126219.6403 MVAr generation and by what?
explain the what is a drive ? 0 4 which type motor r use in the celling fan..... PCB plannet 2 13 If stator & rotor of a 3-phase induction motor have different no. of poles, will the motor run or not?? types of drives Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only. ACC 1 41 how the 3phase induction motor is running in 2phase supply with help of capacitor? 1 33 what is the actual difference betwen constructional details and constructional features? 1 20 how does commutator convert a.c to d.c?
Write masons gain formula.
WHTA IS LIMT OF LEAKGE CURRENT OF 11 KV 1 CORE 1000SQ.MM. XLPE CABLE.LOAD ON CABLE IS AROUND 600AMP .LENGTH 500 MTRS.
Why is water motor not taking the pressure? what is the problem?
what is mean by ideal infinite bus? why it is required to consider in fault short circuit calculations?
