Inst ToolsInst ToolsInst Tools
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Search
  • Books
  • Software
  • Projects
  • Process
  • Tools
  • Basics
  • Formula
  • Power Plant
  • Root Cause Analysis
  • Electrical Basics
  • Animation
  • Standards
  • 4-20 mA Course
  • Siemens PLC Course
Reading: Inability to Test Repaired HT Motors in Workshop Posed Problems
Share
Notification Show More
Font ResizerAa
Inst ToolsInst Tools
Font ResizerAa
  • Courses
  • Design
  • PLC
  • Interview
  • Control System
Search
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > Root Cause Analysis (RCA) > Inability to Test Repaired HT Motors in Workshop Posed Problems

Inability to Test Repaired HT Motors in Workshop Posed Problems

Electrical engineering root cause analysis (RCA) related to the inability to test repaired HT motors in the workshop posed problems.

Last updated: September 28, 2022 3:08 pm
S Raghava Chari
Root Cause Analysis (RCA)
No Comments
Share
2 Min Read
SHARE

Electrical engineering root cause analysis (RCA) related to the inability to test repaired HT motors in the workshop posed problems.

Contents
Inability to Test Repaired HT Motors ProblemSolutionBenefits Derived
Article Type:Root Cause Analysis (RCA)
Category:Electrical
Equipment Type:Motors
Author:S. Raghava Chari

Note: This root cause analysis (RCA) is from real-time scenarios that happened in industries during the tenure of two or three decades ago. These articles will help you to improve your troubleshooting skills and knowledge.

Inability to Test Repaired HT Motors Problem

Providing a workshop 3.3 KV power supply is prohibitively expensive. Hence, the crew could not shop run test repaired 3.3 KV motors.

Solution

As a visiting rewinding shop engineer advised 3.3 KV Antifriction Bearing Motors self-start and sleeve bearings motors nudge start on 400 V supply. Both run at 10% lower than rated RPM, and.

Benefits Derived

Benefits Derived are as under:

  1. Low voltage shop testing dries the windings well and prevents flashes in the fleld
  2. Enables correcting defects e.g. vibrations, poorly fitted bearings etc. and correcting
  3. The above prevent the hassles: shop to field and return wasteful transport, work permits, HT connections making and breaking etc.

Author: S. Raghava Chari

Do you face any similar issues? Share with us through the below comments section.

If you liked this article, then please subscribe to our YouTube Channel for Instrumentation, Electrical, PLC, and SCADA video tutorials.

You can also follow us on Facebook and Twitter to receive daily updates.

Read Next:

  • Problems with Switchgears
  • Transformer Problem Solved
  • Aluminum Cable Terminations
  • What is a Magnetic Contactor?
  • Arc Fault Breaker Problem Solved
Don't Miss Our Updates
Be the first to get exclusive content straight to your email.
We promise not to spam you. You can unsubscribe at any time.
Invalid email address
You've successfully subscribed !

Continue Reading

Thermowell Shank to Flange Repeat Weld Leaks
Ammonia Flash Vessel All Level Instruments Stopped Working
Poorly Built Switchgears – Why Breaker Parts Tear apart or don’t work?
Readers Questions on Flow Transmitter
Repeat Control Valve Plug Stem and Gland Leaks
Reformer Fan Bearing Change Times cut by 90%
Share This Article
Facebook Whatsapp Whatsapp LinkedIn Copy Link
Share
Leave a Comment

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Stay Connected

128.3kFollowersLike
69.1kFollowersFollow
210kSubscribersSubscribe
38kFollowersFollow

Categories

Explore More

Totally Enclosed Fan Cooled (TEFC) Motors Rampant Winding Burnouts
Instrument Steam Pressure Taps Primary Block Valves Glands and Bonnets Leaks
Fan Motor Frequent Journal Bearing Failures Posed Plant Outages
Fired Boiler Induced Draft Fan (IDF) Failures Upset all Plants Operations
HT Motor Direction of Rotation (DOR) Changed
PTFE lined 6” 300# butt weld end Plug Valves Leaks Stopped Forever
A Pipe Elbow Sudden Burst Fatalities and Wrecked Panel Instrumentation
Control Panel Instruments Problem Threatened Plant Shutdown

Keep Learning

Transformers Coolers Weld Joints Oil

Transformers Coolers Weld Joints Oil Oozes Were Eye Sores

An Indian Plants all turbines’ low Vacuum

An Indian Plants all turbines’ low Vacuum & Saudi Plant turbo-compressor only

Steam Letdown Station Problems

Steam Letdown Station Problems and their Solutions

Rolled & Seal Welded Tube to Tube sheet joints

Gas Cooler Re-tubing Done Successfully (Root Cause Analysis)

Chemical Reactor Vessel P and ID

Wrong Operation Internals Destroyed Demineralization Mixed Bed Vessel

HT motors Corrosion Problem

HT motors Corrosion Problem

Control Valve Whisper Trim Cage

Problem with Choked Control Valve with Whisper Trim Cage

Ball Valve root cause

Ammonia Feed Ball Valve to Ship Tank Closed

Learn More

Difference Between Ethernet IP and Profinet

Difference Between Ethernet IP and Profinet

DP-Level-Measurement-Calculation-Below-Tapping-Point-Open-Tank

Differential Pressure (DP) Level transmitter Installed Below Tapping Point

Basic DC Power Supply Circuit

Basic DC Power Supply Circuit

Allen-Bradley MicroLogix 1000 controller

PLC Switch Actuation Status

Safety in Automation Systems

Safety in Automation Systems

Switchgear & Protection Objective Questions and Answers

Switchgear & Protection Objective Questions and Answers

Pressure Gauge Parts

Pressure Gauges with Bourdon Tube Principle

Motor Operation for Local Control Panel

Motor Operation from Local Control Panel – Video

Menu

  • About
  • Privacy Policy
  • Copyright

Quick Links

  • Learn PLC
  • Helping Hand
  • Part Time Job

YouTube Subscribe

Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?