basic
Secondary distribution systems
A low-voltage network or secondary network is a part of electric power distribution which carries electric energy from…
August 18, 2021 · Prabhu TLbasic
basic
Primary and secondary power distribution systems (layouts explained)
Primary distribution systems Primary distribution systems consist of feeders that deliver power from distribution substations to distribution transformers.…
August 18, 2021 · Prabhu TLbasic
Control house layout – 3
Cableways Cable routing can be accomplished by using any of several methods. Cable Trenches Cable trenches are formed…
August 18, 2021 · Prabhu TLbasic
Control house layout – 2
DC Equipment Substation DC equipment located in the control house normally consists of the battery, battery charger, monitoring…
August 18, 2021 · Prabhu TLbasic
Control house layout -1
Control and Relay protection Panels Most protection relaying, metering, and control equipment is mounted on fabricated control and…
August 18, 2021 · Prabhu TLbasic
Control house at HV/EHV switchyards and substations (construction, layout and functions)
Control house Nowadays, the control house is one of the main parts in every modern HV switchyard and…
August 18, 2021 · Prabhu TLbasic
Phase Comparison
Phase comparison relay systems monitor the current direction at each line terminal of the protected line and transmit…
August 18, 2021 · Prabhu TLbasic
Underreaching Transfer Trip Schemes
Underreaching transfer trip schemes include two variations: direct underreach and permissive underreach. The communications for this type of relaying…
August 18, 2021 · Prabhu TLbasic
Pilot schemes for transmission line protection
When do we use pilot schemes? Pilot schemes simultaneously measure and monitor system parameters at all terminals of…
August 18, 2021 · Prabhu TLbasic
Double Breaker–Double Bus
The double breaker-double bus configuration consists of two main buses, each normally energized. Electrically connected between the buses…
August 18, 2021 · Prabhu TL