Protection
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Personal Protective Equipment (PPE) for Electrical Works
Electrical Works – Personal Protective Equipment (PPE) To protect the employee’s body from injury Personal Protective Equipment (PPE) must be used. Basic PPE consists of: Cotton protective clothing with long…
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Types & Characteristics of Surge Arresters
Surge Arresters – Types & Characteristics Introduction Atmospheric lightning phenomenon on overhead lines and bare conductors or metallic structures of an outdoors substation and over voltages due to switching operations…
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Electrical Transmission Networks – EHV and HV Overhead Lines
Electrical Transmission Networks and Overhead Lines Generally, EHV and HV (High Voltage; 60 kV ≤ V < 150 kV, EHV: Extra High Voltage; V ≥ 150 kV) is used for…
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Electric Stress Control in Cable, Joints & Terminations
How to Control Electric Stress in Cable Joints & Terminations? Introduction Power cables are of great importance in power transmission and distribution systems. Terminations and joints are the basic accessories…
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Emergency Planning for Safety & Protection in Industries & Installations
Emergency Planning in Industries & Installations Emergency Plan Health and Safety organization and national regulations call for industrial and commercial companies and installations to have an emergency plan, to minimize…
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Busbars and Connectors in HV and EHV installations
Busbars and Connectors in Indoor & Outdoor Installations What is Electric Busbar? A conductor or group of conductor used to collect the power from incoming feeders and distribute to the…
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Cables Feeder Protection – Faults Types, Causes & Differential Protection
Cables Feeder Protection – Overcurrent & Differential Protection Common Types of Faults Common failure modes and faults of cables are: Electrically induced failures Mechanically induced failures Thermally induced failures Metallic…
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Overhead Lines Protection – Faults and Protection Devices
Overhead Lines Faults & Protection in Power System Common Faults in Overhead Lines The most common causes of faults in overhead lines are: Aircraft and cars hitting lines and structures…
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Power Transformer Protection and Faults
Power Transformer Protection and Types of Faults In our previous post, we have already discussed about electrical protection Systems, devices and units. Today, we will discuss about different types of…
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HV And MV Switch Disconnectors And Isolators in Power System
HV/MV Switch Disconnectors And Isolators in Substation & Overhead Lines Introduction HV/MV Switch Disconnectors And Isolators High Voltage (HV) and Medium Voltage (MV)[1] installations require equipments to switching and/or isolating…
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