Number of pages : 2

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
THIRD SEMESTER M.TECH DEGREE EXAMINATION, JULY 201 8
Electrical and Electronics Engineering

(Power Control and Drives)

OIEE7411: EHVAC and DC Transmission

Max. Marks : 60 Duration: 3 Hours

Answer any two questions from each part

Part A
1. Explain the major equipments in HVDC substation with neat schematic
diagram. (9 marks)
2. Explain the firing angle control ofHVDC converters in detail.
(9 marks)
3. a) Explain the general equation of dc power flow in HVDC converters. (5 marks)
b) Explain the constant current control method used with HVDC
converters with a schematic diagram. (4 marks)
Part B
4. Explain the requirement of reactive power in HVDC converter station. (9 marks)

Draw and explain configuration of sea electrode and also compare it with shore

electrode. (9 marks)