Guys,
What is a PWM Drive? (Pulse-Width Modulation Drive)
What is a PWM Drive? (Pulse-Width Modulation Drive)
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The Maintenance Technicians App
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#32
Electrical and Electronic / What is a line reactor and why is it needed
January 20, 2019, 06:25:AM
Guys,
What is a line reactor? and why do you need to use them in unison to variable speed drives?
What is a line reactor? and why do you need to use them in unison to variable speed drives?
#33
Electrical and Electronic / What is Auto-Tune and Why Do You Need It
January 20, 2019, 06:22:AM
Guys,
What is Auto-Tune and why would you need to auto-tune a drive after entering the appropriate parameters?
What is Auto-Tune and why would you need to auto-tune a drive after entering the appropriate parameters?
#34
Electrical and Electronic / What is a 4 Quadrant Drive
January 20, 2019, 06:20:AM
Guys,
What is a 4 quadrant drive? Is it similar to a vector drive?
What is a 4 quadrant drive? Is it similar to a vector drive?
#35
Electrical and Electronic / What does Watt Loss mean?
January 19, 2019, 05:58:PM
What does Watt Loss mean? Looking for the actual definition from a technician's standpoint. I was told Watt loss needs to be considered when designing a drive/motor system but I'm not sure how critical it is.
#36
Electrical and Electronic / What is an IGBT?
October 04, 2017, 05:33:AM
What is an IGBT? Looking for a detailed definition of an IGBT.
#37
Electrical and Electronic / What are Harmonics in Industrial Applications?
October 04, 2017, 05:32:AM
What are harmonics in industrial applications? Any takers on this?
#38
Electrical and Electronic / What is an Attenuation Choke?
October 04, 2017, 05:29:AM
Another question for the record... What is an attenuation choke?
#39
The Maintenance Saloon / Re: Stroll Down Memory Lane
October 02, 2017, 09:37:PM
Here are some classics I thought I'd share:
Here's an Amerite Delay Relay:
Here's a Red Line Timing Relay:
Here's a Raytheon Vacuum Tube:
Here's an Amerite Delay Relay:
Here's a Red Line Timing Relay:
Here's a Raytheon Vacuum Tube:
#40
Electrical and Electronic / What is a Free-Run Stop?
October 02, 2017, 06:51:PM
What is a Free-Run Stop? It sounds like motor freewheeling. Are there differences between free-run stop and freewheeling?
#41
Electrical and Electronic / What does CE mean on Motors?
October 02, 2017, 06:42:PM
What does CE mean on Motors? Is this similar to UL? I know I've seen it in quite a few places.
#42
Electrical and Electronic / What is a Braking Resistor?
October 02, 2017, 06:40:PM
What is a Braking Resistor? I'm assuming it is added to a motor circuit to help stop a motor.
#43
Electrical and Electronic / Re: Are Lenze AC Tech drives reliable?
October 01, 2017, 08:55:PM
I know this is an old post but we have quite a few AC Tech drives in our facility and they have been great. They are easy to set up and seem to be a big bang for the buck. Highly recommended!
#44
Electrical and Electronic / What is the definition of base frequency?
October 01, 2017, 08:50:PM
What is the definition of base frequency? I would like to know the relationship between base frequency and motor drives.
#45
Electrical and Electronic / What Does Arrival Frequency Mean?
October 01, 2017, 08:48:PM
What Does Arrival Frequency Mean? Any takers on this? I saw this in my drive startup manual.
#46
Electrical and Electronic / What is Ambient Temperature Pertaining to Electronics?
October 01, 2017, 08:46:PM
What exactly is ambient temperature pertaining to electronics? I'm assuming it just means the temperature surrounding an electronic component.
#47
Troubleshooting 101 / What is the difference between a motor megger and an insulation tester?
September 25, 2015, 03:57:AM
Hello people,
What is the difference between a motor megger and an insulation tester?
I am going to purchase and insulation tester for our maintenance shop. I see both terms used loosely and I really don't think there is a difference, but can anyone detail these two items so I make the right buy. Thanks very much for any insight.
What is the difference between a motor megger and an insulation tester?
I am going to purchase and insulation tester for our maintenance shop. I see both terms used loosely and I really don't think there is a difference, but can anyone detail these two items so I make the right buy. Thanks very much for any insight.