Comments on: Symmetrical & Unsymmetrical Faults

By: Olatinwo Olatayo

Olatinwo Olatayo — Fri, 30 Jul 2021 05:03:22 +0000

In reply to Archana T. Thanks, it's helpful.

By: Resh Ramuk

Resh Ramuk — Wed, 17 Apr 2019 02:18:12 +0000

What is the difference of LLLG and symmetrical fault?

By: sid

sid — Sun, 01 Apr 2018 15:21:15 +0000

I think Rahul is asking about the primary current of the power transformer at the generating station?, I think it is balance but control center reduce the load on turbine through excitation current and sometimes if it is difficult to control, and control center re-rout the load into different transmission lines depends upon Ring or Radial system?

By: Rahul ranjan

Rahul ranjan — Thu, 30 Nov 2017 05:18:00 +0000

If due to any LG fault one of the secondary of transformer got unbalanced then all the remaining 2 phases current rush toward the fault and hence the current in 2 phases gets 0. What abt the primary current of of the transformer.. Whether it still be balanced or something happens to it too..? Please explain

By: Archana T

Archana T — Tue, 08 Nov 2016 04:50:30 +0000

In reply to Nwokeji innocent somtoo. Symmetrical fault involves all the three phases, and these phases carry the identical fault current which makes the system balance. The unsymmetrical fault affects two or more phases of the transmission line. Thus, the current becomes unsymmetrical in all the three phases and system become unbalanced.

By: Nwokeji innocent somtoo

Nwokeji innocent somtoo — Fri, 04 Nov 2016 20:57:48 +0000

Thanks, but symmetrical fault or balanced fault, that’s is unbalanced system, does that mean that the system is balanced when unsymmetrical fault is involved? I think any system with fault is unbalanced….