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Category Archive for: «Premium Content»

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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This content is available for Premium members only. Premium membership gives you an access to specialized technical articles and other extra premium content (electrical guides and software).Premium Membership ♛

Jul 15, 2017 | Premium Content ♛

Practical methods of reducing noise and interference on cables

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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This content is available for Premium members only. Premium membership gives you an access to specialized technical articles and other extra premium content (electrical guides and software).Premium Membership ♛

Jun 26, 2017 | Premium Content ♛

Step by step calculation of overload and short circuit currents

Transformer protection systems and their primary switching arrangements

The protection of power transformers is not just a question of detecting faults within the windings, cores, or tank. It’s very often a question of how the transformer is integrated…...

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This content is available for Premium members only. Premium membership gives you an access to specialized technical articles and other extra premium content (electrical guides and software).Premium Membership ♛

Jun 12, 2017 | Premium Content ♛

Protection systems for transformers

How backup protection is used to improve fault-clearing system in HV networks

All elements in the fault-clearing system do not always operate correctly. Protection relays may fail to operate or may operate unwantedly. Switching devices may fail to interrupt the fault current…....

PREMIUM Membership Required

This content is available for Premium members only. Premium membership gives you an access to specialized technical articles and other extra premium content (electrical guides and software).Premium Membership ♛

Jun 05, 2017 | Premium Content ♛

How backup protection is used to improve fault-clearing system in EHV networks

Generator stability and what happens when it’s out of step

Generators can really be described as the reason for being a power station. The operation of the turbine-generator system is second in criticality only to the operation of the nuclear…...

PREMIUM Membership Required

This content is available for Premium members only. Premium membership gives you an access to specialized technical articles and other extra premium content (electrical guides and software).Premium Membership ♛

May 27, 2017 | Premium Content ♛

Generator stability and what happens when it's out of step

What Standards To Use For Transformer Oil Testing?

ASTM (American Society for Testing and Materials) has developed the standards for oil testing. The following tests we recommended for a complete analysis of a transformer’s oil: The dielectric breakdown…...

PREMIUM Membership Required

This content is available for Premium members only. Premium membership gives you an access to specialized technical articles and other extra premium content (electrical guides and software).Premium Membership ♛

Nov 15, 2011 | Premium Content ♛

ASTM standards for transformer oil testing and complete analysis of a transformer’s oil


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