Practical methods of reducing noise and interference on cables

A few practical methods of reducing noise will be examined in this technical article. These include a quantitative consideration of the effects of shielding, cable spacing, earthing (or grounding) and…...

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Jul 15, 2017 | Premium Content ♛

Practical methods of reducing noise and interference on cables

Easy understanding of 3-phase transformer connections (Delta–Delta, Wye–Wye, Delta–Wye and Wye–Delta)

Three-phase voltage transformations can be accomplished by using three phase transformers, which are single devices with all windings constructed on a single iron core. Three phase voltage transformations also can… Read more

Jul 14, 2017 | Electrical Lectures

Easy understanding of 3-phase transformer connections (Delta–Delta, Wye–Wye, Delta–Wye and Wye–Delta)

Automation of secondary distribution networks in rural areas

The challenges in network automation for rural areas are similar to those in urban areas, however the network topology may be very different. A typical conventional network topology is shown… Read more

Jul 12, 2017 | Transmission and Distribution

Automation of secondary distribution networks in rural areas

How do faults develop in a HV transformer and why condition monitoring is important

Condition monitoring equipment that can be used to extend the life of a transformer or to prevent catastrophic failure could pay for itself many times over. However, condition monitoring does… Read more

Jul 10, 2017 | Maintenance

How do faults develop in a HV transformer and why condition monitoring is important

The basics of capacitor banks protection

As you already know, capacitor banks are normally used in medium voltage networks to generate reactive power to industries etc. Capacitor banks are, almost always, equipped with a series reactors… Read more

Jul 07, 2017 | Protection

Selection of protection relays for capacitor banks

How choice of system earthing affects low voltage switchgear?

Choice of system earthing affects not only dependability (in the largest sense) but also installation, in particular with respect to the low voltage switchgear to be implemented. The three system… Read more

Jul 05, 2017 | Energy and Power

How choice of system earthing affects low voltage switchgear?

Power quality monitoring with line disturbance analyzers and voltage recorders

Many power quality problems are caused by inadequate wiring or improper grounding. These problems can be detected by simple examination of the wiring and grounding systems. Another large population of… Read more

Jul 03, 2017 | Power Quality

System earthings and incidents on MV side that result in LV disturbances

Low voltage networks, unless a replacement uninterruptible power supply (with galvanic insulation) or a LV/LV transformer is used, are influenced by MV. This influence takes the form of: capacitive coupling, galvanic… Read more

Jun 30, 2017 | Energy and Power

System earthings and incidents on MV side that result in LV disturbances

Three abnormal situations leading to an uncontrolled release of SF6 gas

This technical article deals with the assessment of risk to personnel in the case of an abnormal situation leading to an uncontrolled release of SF6 gas into the atmosphere. Generally… Read more

Jun 28, 2017 | High Voltage

Three abnormal situations leading to an uncontrolled release of SF6 gas

Step by step calculation of overload and short circuit currents

In a heating system a motor-driven pump with a power of 200 kW, cos φ = 0.88, η = 0.93 is connected through an overhead cable with 1= 45 m…...

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Jun 26, 2017 | Premium Content ♛

Technical Articles

Practical methods of reducing noise and interference on cables

PREMIUM Membership Required

Easy understanding of 3-phase transformer connections (Delta–Delta, Wye–Wye, Delta–Wye and Wye–Delta)

Automation of secondary distribution networks in rural areas

How do faults develop in a HV transformer and why condition monitoring is important

The basics of capacitor banks protection

How choice of system earthing affects low voltage switchgear?

Power quality monitoring with line disturbance analyzers and voltage recorders

System earthings and incidents on MV side that result in LV disturbances

Three abnormal situations leading to an uncontrolled release of SF6 gas

Step by step calculation of overload and short circuit currents

PREMIUM Membership Required

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