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4 crucial devices used for distribution system protection (selection and installation tips)

A wide variety of equipment is used to protect distribution networks. The particular type of protection used depends on the system element being protected and the system voltage level. 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 ♛

Sep 15, 2017 | Edvard

4 crucial devices used for distribution system protection (selection and installation tips)

Reactive power & power factor measurement in industrial plant

Reactive power measurement A varmeter is used to measure the reactive power in an industrial plant that is supplied by an 8300-V, three-phase, four-wire line. The plant load is estimated…

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 ♛

Jul 31, 2017 | Edvard

Reactive power & power factor measurement in industrial plant

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…...

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 ♛

Jul 15, 2017 | Edvard

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…...

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 26, 2017 | Edvard

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…...

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 12, 2017 | Edvard

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 | Edvard

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 | Edvard

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 | Edvard

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