In a three-phase system, the sum of the three phase voltage phasors in a balanced system is _____. 

This question was previously asked in
RRB JE EE 22 Apr 2025 Shift 2 CBT 2 Official Paper
View all RRB JE Papers >
  1. maximum at resonance
  2. zero
  3. equal to the line voltage
  4. equal to the phase voltage

Answer (Detailed Solution Below)

Option 2 : zero
Free
General Science for All Railway Exams Mock Test
2.1 Lakh Users
20 Questions 20 Marks 15 Mins

Detailed Solution

Download Solution PDF

3ϕ balanced system

qImage68164eabe4754c96da62d4ed

In a balanced three-phase system, the sum of the three phase voltage phasors is zero. This is a fundamental property of balanced three-phase systems. 

Explanation:

  • In a balanced three-phase system, the three phase voltages have equal magnitudes and are 120 degrees apart from each other. 
  • When the three phasors are added vectorially, they will cancel each other out, resulting in a sum of zero. 
Latest RRB JE Updates

Last updated on Jun 7, 2025

-> RRB JE CBT 2 answer key 2025 for June 4 exam has been released at the official website.

-> Check Your Marks via RRB JE CBT 2 Rank Calculator 2025

-> RRB JE CBT 2 admit card 2025 has been released. 

-> RRB JE CBT 2 city intimation slip 2025 for June 4 exam has been released at the official website.

-> RRB JE CBT 2 Cancelled Shift Exam 2025 will be conducted on June 4, 2025 in offline mode. 

-> RRB JE CBT 2 Exam Analysis 2025 is Out, Candidates analysis their exam according to Shift 1 and 2 Questions and Answers.

-> The RRB JE Notification 2024 was released for 7951 vacancies for various posts of Junior Engineer, Depot Material Superintendent, Chemical & Metallurgical Assistant, Chemical Supervisor (Research) and Metallurgical Supervisor (Research). 

-> The selection process includes CBT 1, CBT 2, and Document Verification & Medical Test.

-> The candidates who will be selected will get an approximate salary range between Rs. 13,500 to Rs. 38,425.

-> Attempt RRB JE Free Current Affairs Mock Test here

-> Enhance your preparation with the RRB JE Previous Year Papers

Get Free Access Now
Hot Links: teen patti winner teen patti gold real cash all teen patti