Construction of the protection technology: - design and commissioning of differential protection devices for 110 kv fields 1-7, - design and commissioning transformer protection for transformers a, B and r, - construction and commissioning 110 kv line protection, - testing and commissioning of line differential protection, Distance protection
and u0-t protection in the counterworks, - distance protection
with io-t and uo-t functionality and dc-protection for the transformers 10 kv switchgear, - construction and commissioning of combined 10 kv protective devices with control function, - construction of current transformers in the 10 kv star point of the transformer discharge.
There is always need to mature directional relaying because it is cost effective and technically sound solution of the very phenomenon as local back up of distance protection
Therefore, to fast clear the close-in fault, we still need to resort to distance protection
which is operated based on single-end electric quantity.
In this paper the relations betweens different types of power oscillations and distance protection
The unevenness of the power flow and fault current contribution can lead to misoperation of distance protection
So far, a large number of methods have been proposed for improving the distance protection
performance of transmission lines protection.
This book covers the fundamentals of distance protection
and the special features of numerical technology.
Numerical Distance Protection
Relays for 5 Nos of Lines & Buscoupler and 1 No.
The measured impedance at the point that relay is connected is the basis in distance protection
To facilitate panel testing, and the testing of high-burden electromechanical distance protection
relays, the high constant power output is also available from the new PowerV voltage amplifiers.
Limited Tenders are invited for Distance Protection
5 Nonpilot distance protection
of transmission lines