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Access Groups
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At first I am a bit confused…why it does not trip? So I ask:- Ok help me out here…
Motor start/protection
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Access Groups
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Basics on selecting a circuit breaker for FULL MOTOR PROTECTION (tech). **This customer insists he CAN use a normal circuit breaker for FULL motor protection!! First lets us qualify the title: I am not referring to Motor Protection Circuit Breakers for they are specifically designed for this job. We are referring to a normal traditional […]
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Circuit breakers
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What do we have to consider to use a normal circuit breaker as a COMPLETE motor protection device…startup current/short circuit as well as overload protection. ===>>>OOPS…You are not logged in for this group!
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Circuit breakers
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This is pretty deep – For an introduction topic see below link: If you can’t read this on the screen – similar info is here in our ebook. See here. What do we have to consider to use a normal circuit breaker as a COMPLETE motor protection device…start-up current/short circuit as well as […]
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Circuit breakers
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Selecting a circuit breaker for the motor protection: Is this circuit breaker faulty? I have this compressor with motor pulling 11,5A and I put a 15A CB curve D…why does it still trip? ===>>>OOPS…You are not logged in for this group!
So I get called to confirm if changing from DOL to a softstarter will get a motor started with limited generator power. Is it unfair to respond and say I don’t know – It all depends on the dynamics of the load and the machine design and finally the generator load graph. The caller gets […]
What does a star/delta starter do: Imagine a connected big hosepipe and the tap is opened – the full pressure will be available(delta), but what if the pipe is stretched such that the diameter decreases and the pipe grows longer…its the same pipe just differently configured.(star). That’s exactly what it is. When a motor starts […]
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ALL
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Been working with star/delta starters for many years and not once did this cross my mind…I guess those were the days when energy conservation was not an issue.
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Contactors & Relays
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