answersLogoWhite

0

Subjects>Engineering & Technology>Electrical Engineering

How do you ctmm motor protection relay setting?

User Avatar

Anonymous

∙ 12y ago
Updated: 4/28/2022

Just calculate from motorplate: Watts/(Square3*V*cosP)=> example motorplate says: 4.7Kw 440V cosP: 0.82 4700W/(square3*440V*0.82) here you get minimum setting for motor, this case 7.5A

JT

User Avatar

Wiki User

∙ 12y ago
Copy

What else can I help you with?

Continue Learning about Electrical Engineering
Related Questions

How is instantaneous overcurrent is set in CTMM relays?

Instantaneous overcurrent settings in Current Transformer (CT) Metering and Monitoring (CTMM) relays are typically established by configuring the relay's pickup current level and time delay characteristics. This involves adjusting the relay's settings to specify the threshold current at which the relay will trip, often measured as a multiple of the CT's rated primary current. The settings can be fine-tuned based on system requirements and fault analysis to ensure prompt response to overcurrent conditions while avoiding nuisance tripping. Additionally, some relays may offer features like curve selection to tailor the response to specific operational needs.


Trending Questions
What is the difference between neutral earthing resistance and solid earth? Class 1 protection for power supply? Do most trade schools offer electrical training? What is carkit on a cellular device? What is a busduct? How do you describe lightning? SSO electrical Wiring? Why will an unloaded series-wound motor overspeed? How are capacitors rated? Can watt meter negative reading? How can you block the transmitter signal? A 5 ohm resistor a 10 ohm resistor and a 15 ohm resistor are connected in series to a 120 volt power source. What is the amount of current flowing between the 5 ohm resistor and the 10 ohm resistor? How do I design a voltage divider circuit that has 2 VDC 5 VDC and 8 VDC available with a 10 VDC source? Can anybody please tell some websites to get lecture notes for engineering? Why does the national grid use different voltages? What do you do if your light switch isn't grounded? Can 110 electrical charge kill you? What are the effects of poor change management practices? Did Benjamin Franklin invent elictricity? What are some simple electronic devices that are used in electrical engineering?

Resources

Leaderboard All Tags Unanswered

Top Categories

Algebra Chemistry Biology World History English Language Arts Psychology Computer Science Economics

Product

Community Guidelines Honor Code Flashcard Maker Study Guides Math Solver FAQ

Company

About Us Contact Us Terms of Service Privacy Policy Disclaimer Cookie Policy IP Issues
Answers Logo
Copyright ©2026 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.