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Electrical Engineering
Frequent problem with solution


Questions and Answers about Electrical Safety
The law also requires electrical permits before work begins and inspections before the work can be approved. These steps encourage quality work and consistent application of electrical laws and codes. The following questions and answers further explain requirements that promote electrical safety and protect people and property.


Electrical Machines II Short questions and answers
Why almost all large size Synchronous machines are constructed with rotating
field system type?

ELECTRICAL INSPECTOR EXAMINATION
Refer to the Electricity Act and state TWO classes of registered persons
who can be classed as a supervisor of electrical work.




Electrical Engineering – Answer ALL questions
The transient current flowing in an RL electrical circuit is a solution of the first order
differential equation


Ontario Electrical Safety Code
When does the new rules become effective?, Was grandfathering of the old rules permitted for applications that have been requested?,



NEC Question and Answer
An overcurrent device shall be connected at the point where the conductor to be protected
receives its supply,



Installing Photovoltaic Systems
This Question and Answer Guide for Solar Electric Systems addresses general considerations about photovoltaics (PV) technology and requirements for installing photovoltaic power systems, including building-integrated applications. Contained in this guide are commonly asked questions about the technology, and responses based on current state-of-the-art equipment and industry design practice.



Trailing Cable Electrical Problem
This mine utilizes 550 volt 3 phase equipment and has continuous miners. Femco ground
monitors are used.


Canada's New Electrical Safety Standard
How are AC and DC voltages addressed in the standard? What labeling of electrical panels is required, and where do I find the standard that references it?


Photovoltaics Question and Answer
What are photovoltaics?, How are photovoltaic cells made?,  Their universal appeal lies
in the fact that they generate electricity from the sun. Working photovoltaics have no moving parts, are relatively simple in design, need very little maintenance, and are environmentally benign.