Electrical Contactors
In this blog we are going to disscus various problem associated with the contactor & their solutions
Saturday, February 21, 2009
n)General questions
›
1) QUESTION: How can I select contactors for utilization categories AC-8a and AC-8b? What special features have to be observed? ANSWER: This...
m) Temperature limit of coil
›
Temperature limit of coil Q) To which class of insulating material are the solenoids coils of contactors have to subject? What are their ma...
l)Problem in dalher connection
›
Problem in dalher connection QUESTION: Contactors in a Dahlander connection are controlled by a PLC. Very often contactors are welding after...
k)Series & Parallel combination
›
Series & Parallel combination QUESTION: How do load ratings change when contacts are connected in parallel or in series? Which option s...
j)Mounting position changed
›
Mounting position changed QUESTION: Which technical consequences shall be considered if mounting position other than standard is used? ANSW...
i)Power loss
›
Power loss QUESTION: How to calculate power loss of contactors which is generally required for thermal calculations of a switchboard. ANSWER...
h) Effect of cable capacitance
›
Effect of cable capacitance Q)What is Effect of Cable Capacitance on the Operation of AC operated Contactors When long length of cables is ...
›
Home
View web version
