Search

Premium Membership

Save 15% on Pro Premium Plan with discount code: UX778 (expires on September 31st). Study specialized LV/MV/HV technical articles and papers.

Author Archive for: Jignesh Parmar

Jignesh Parmar

74 awesome technical articles

author-pic

Jignesh Parmar has completed M.Tech (Power System Control), B.E (Electrical). He is member of Institution of Engineers (MIE), India. He has more than 13 years experience in transmission & distribution-energy theft detection and maintenance electrical projects.

Website:

High Voltage

Electrical Safety Standards for LV/MV/HV (Part-2)

Continued from part 1 – Electrical Safety Standards for LV/MV/HV (Part-1) Standard: Northern Ireland Electricity (NIE), 6/025 ENA Clearances of Electrical Line to Ground and Roads Clearances of Electrical Line… Read more

Nov 12, 2012 | By jiguparmar

Electrical Safety Standards for LV/MV/HV part 2
High Voltage

Electrical Safety Standards for LV/MV/HV (Part-1)

Standard: Western Power Company Water Safely Clearance on Electrical Fires Minimum Approach Distance for Authorized Person Minimum Approach Distance for Ordinary Person Minimum Approach Distance for Vehicle and Plant for… Read more

Nov 07, 2012 | By jiguparmar

Electrical Safety Standards for LV/MV/HV (Part-1)
Energy and Power

Safety Clearance Recommendations for Transformer

Clearance from Outdoor Liquid Insulated Transformers to Buildings (NEC) Clearance between Two Outdoor Liquid Insulated Transformers (NEC) Dry Type Transformer in Indoor Installation (NES 420.21) Dry Type Transformer in Outdoor… Read more

Oct 24, 2012 | By jiguparmar

Safety Clearance Recommendations for Transformer
Energy and Power

Safety Clearance Recommendations for Electrical Panel

Working Space around Indoor Panel/Circuit Board (NES 312.2) Clearance around an Indoor electrical panel (NEC 110.26) Clearance for Conductor Entering in Panel (NES 408.5) Clearance between Bare Metal Busbar in… Read more

Oct 10, 2012 | By jiguparmar

Safety Clearance Recommendations for Electrical Panel
Protection

Overcurrent protection of transformer (NEC 450.3)

The overcurrent protection required for transformers is consider for Protection of Transformer only. Such overcurrent protection will not necessarily protect the primary or secondary conductors or equipment connected on the… Read more

Oct 08, 2012 | By jiguparmar

Overcurrent protection of transformer (NEC 450.3)
Energy and Power

Floating Neutral Impacts in Power Distribution

If the Neutral Conductor is opened, broke or lost at either of its source side (Distribution Transformer, Generator or at Load side – Distribution Panel of Consumer), the distribution system’s… Read more

Aug 27, 2012 | By jiguparmar

Floating Neutral Impacts in Power Distribution
Energy and Power

Principles of Transformers in Parallel Connection

For supplying a load in excess of the rating of an existing transformer, two or more transformers may be connected in parallel with the existing transformer. The transformers are connected… Read more

Aug 06, 2012 | By jiguparmar

Principles of Transformers in Parallel Connection (Part 1)
Energy and Power

Delta-Star Transformer Connection Overview

In this type of connection, the primary connected in delta fashion while the secondary current is connected in star. The main use of this connection is to step up the… Read more

Jul 10, 2012 | By jiguparmar

GE Transformer delta-star nameplate
Energy and Power

Delta-Delta Transformer Connection Overview

In this type of connection, both the three phase primary and secondary windings are connected in delta as shown in the Figure 1: The voltages on primary and secondary sides… Read more

Jul 06, 2012 | By jiguparmar

Delta-Delta Transformer Connection Overview
Energy and Power

Autotransformer Connection Explained

An ordinary transformer consists of two windings called primary winding and secondary winding. These two windings are magnetically coupled and electrically isolated. But the transformer in which a part of… Read more

Jul 02, 2012 | By jiguparmar

High efficiency autotransformer with 6%, 4%, 2% tap settings
Transformers

ZigZag Transformer Connection Overview

The zigzag connection of tranformer is also called the interconnected star connection.  This connection has some of the features of the Y and the ∆ connections, combining the advantages of… Read more

Jun 15, 2012 | By jiguparmar

Zigzag Grounding Transformer
Transformers

Scott-T Transformer Connection Overview

There are two main reasons for the need to transform from three phases to two phases: to give a supply to an existing two phase system from a three phase… Read more

Jun 12, 2012 | By jiguparmar

Largest furnace transformer with 105-MVA capacity manufactured at Siemens transformer factory in Dresden


EEP Academy Video Courses

Learn to design LV/MV/HV power systems through professional video courses. Lifetime access. Enjoy learning and don't forget to apply a 20% discount code SEP21