Hot Sockets are not a new phenomenon. Virtually every meter man has pulled a meter with a portion of the meter base around a blade melted and virtually every utility has been called to assist in the investigation of a fire at a meter box
This presentation will cover the results of our lab investigation into the sources for hot sockets, the development of a fixture to simulate hot sockets, the tests and data gleaned from hot sockets, and a discussion of “best practices” regarding hot sockets.
This presentation will give you an understanding of self contained and transformer rated current transformers. You will also discuss meter testing, CT testing, ratio & burden testing
This presentation will cover the results of our lab investigation into the sources for hot sockets, the development of a fixture to simulate hot sockets, and a discussion of best practices regarding hot sockets.
Hot Sockets are not a new phenomenon. Virtually every meter man has pulled a meter with a portion of the meter base around a blade melted and virtually every utility has been called to assist in the investigation of a fire at a meter box.
AMI deployments, because of the volume of meters involved put a spot light on this issue.
What causes a hot socket?
Are the meters ever the cause of a meter box failure?
What are the things to look for when inspecting an existing meter installation?
What are the best practices for handling potential hot sockets?
This presentation will cover the results of our lab investigation into the sources for hot sockets, the development of a fixture to simulate hot sockets, the tests and data gleaned from hot sockets, and a discussion of “best practices” regarding hot sockets.
This presentation will cover the results of our lab investigation into the sources for hot sockets, the development of a fixture to simulate hot sockets, the tests and data gleaned from hot sockets, and a discussion of “best practices” regarding hot sockets.
This presentation discusses the causes of hot sockets, what to look for when inspecting an existing meter installation for a hot socket, and what the best practices are for handling potential hot sockets.
Hot Sockets are not a new phenomenon. Virtually every meter man has pulled a meter with a portion of the meter base around a blade melted and virtually every utility has been called to assist in the investigation of a fire at a meter box.
AMI deployments because of the volume of meters involved put a spot light on this issue.
What causes a hot socket?
Are the meters ever the cause of a meter box failure?
What are the things to look for when inspecting an existing meter installation?
What are the best practices for handling potential hot sockets?
This presentation will cover the results of our lab investigation into the sources for hot sockets, the development of a fixture to simulate hot sockets, the tests and data gleaned from hot sockets, and a discussion of “best practices” regarding hot sockets.
Hot Sockets are not a new phenomenon. Virtually every meter man has pulled a meter with a portion of the meter base around a blade melted and virtually every utility has been called to assist in the investigation of a fire at a meter box
This presentation will cover the results of our lab investigation into the sources for hot sockets, the development of a fixture to simulate hot sockets, the tests and data gleaned from hot sockets, and a discussion of “best practices” regarding hot sockets.
This presentation will give you an understanding of self contained and transformer rated current transformers. You will also discuss meter testing, CT testing, ratio & burden testing
This presentation will cover the results of our lab investigation into the sources for hot sockets, the development of a fixture to simulate hot sockets, and a discussion of best practices regarding hot sockets.
Hot Sockets are not a new phenomenon. Virtually every meter man has pulled a meter with a portion of the meter base around a blade melted and virtually every utility has been called to assist in the investigation of a fire at a meter box.
AMI deployments, because of the volume of meters involved put a spot light on this issue.
What causes a hot socket?
Are the meters ever the cause of a meter box failure?
What are the things to look for when inspecting an existing meter installation?
What are the best practices for handling potential hot sockets?
This presentation will cover the results of our lab investigation into the sources for hot sockets, the development of a fixture to simulate hot sockets, the tests and data gleaned from hot sockets, and a discussion of “best practices” regarding hot sockets.
This presentation will cover the results of our lab investigation into the sources for hot sockets, the development of a fixture to simulate hot sockets, the tests and data gleaned from hot sockets, and a discussion of “best practices” regarding hot sockets.
This presentation discusses the causes of hot sockets, what to look for when inspecting an existing meter installation for a hot socket, and what the best practices are for handling potential hot sockets.
Hot Sockets are not a new phenomenon. Virtually every meter man has pulled a meter with a portion of the meter base around a blade melted and virtually every utility has been called to assist in the investigation of a fire at a meter box.
AMI deployments because of the volume of meters involved put a spot light on this issue.
What causes a hot socket?
Are the meters ever the cause of a meter box failure?
What are the things to look for when inspecting an existing meter installation?
What are the best practices for handling potential hot sockets?
This presentation will cover the results of our lab investigation into the sources for hot sockets, the development of a fixture to simulate hot sockets, the tests and data gleaned from hot sockets, and a discussion of “best practices” regarding hot sockets.
Practical Electrical Substation Safety for Engineers and TechniciansLiving Online
Electrical substation safety is an important issue in utility networks as well as large industrial installations and requires adequate attention in the stages of system planning, design, installation, operation and maintenance. A number of serious accidents including fatalities occur every year in industrial establishments due to accidents involving electricity, resulting in huge financial losses and wasted man-hours. Electrical safety is a well-legislated subject and the various Acts and Regulations lay a lot of stress on the responsibility of both employers and employees in ensuring safe working conditions.
In this workshop, we will take a look at the theoretical aspects of safety as well as the practical and statutory issues. Safety is not simply a matter of taking precautions in the workplace. It has to start at the stage of equipment design. Safety should be built into the design of electrical equipment and it is the responsibility of every manufacturer of electrical equipment to remove every possible hazard that can arise from its normal use. Correct selection and application of electrical machinery is also important for ensuring safety. A thorough inspection during initial erection and commissioning as well as on a periodic basis thereafter is also very essential to ensure safety. Batteries used in substations need particular attention since they contain toxic materials such as lead, corrosive chemicals such as acid or alkali.
Electrical safety is not just a technical issue. Accidents can only be prevented if appropriate safety procedures are evolved and enforced. This includes appropriate knowledge of equipment and systems imparted through systematic training to each and every person who operates or maintains the equipment. We will cover all these aspects in detail.
MORE INFORMATION: http://www.idc-online.com/content/practical-electrical-substation-safety-engineers-and-technicians-28
Throughout this presentation you will learn to understand customer concerns about Smart Meters and AMI meters. You will also be able to respond as a Utility and as a Utility Worker.
Online Electrical Courses addresses electrical safety tips requirements that are necessary for safety and includes why electricity is dangerous and how it works.
This presentation covers differences between self-contained and instrument or transformer rated sites; transformer rated meter forms; test switches and CTs; Blondel’s Theorem; meter accuracy testing; checking the health of your CTs and PTs; and site verification (and not just meter testing). This presentation was given at the PREA Meter School.
Practical Electrical Substation Safety for Engineers and TechniciansLiving Online
Electrical substation safety is an important issue in utility networks as well as large industrial installations and requires adequate attention in the stages of system planning, design, installation, operation and maintenance. A number of serious accidents including fatalities occur every year in industrial establishments due to accidents involving electricity, resulting in huge financial losses and wasted man-hours. Electrical safety is a well-legislated subject and the various Acts and Regulations lay a lot of stress on the responsibility of both employers and employees in ensuring safe working conditions.
In this workshop, we will take a look at the theoretical aspects of safety as well as the practical and statutory issues. Safety is not simply a matter of taking precautions in the workplace. It has to start at the stage of equipment design. Safety should be built into the design of electrical equipment and it is the responsibility of every manufacturer of electrical equipment to remove every possible hazard that can arise from its normal use. Correct selection and application of electrical machinery is also important for ensuring safety. A thorough inspection during initial erection and commissioning as well as on a periodic basis thereafter is also very essential to ensure safety. Batteries used in substations need particular attention since they contain toxic materials such as lead, corrosive chemicals such as acid or alkali.
Electrical safety is not just a technical issue. Accidents can only be prevented if appropriate safety procedures are evolved and enforced. This includes appropriate knowledge of equipment and systems imparted through systematic training to each and every person who operates or maintains the equipment. We will cover all these aspects in detail.
MORE INFORMATION: http://www.idc-online.com/content/practical-electrical-substation-safety-engineers-and-technicians-28
Throughout this presentation you will learn to understand customer concerns about Smart Meters and AMI meters. You will also be able to respond as a Utility and as a Utility Worker.
Online Electrical Courses addresses electrical safety tips requirements that are necessary for safety and includes why electricity is dangerous and how it works.
This presentation covers differences between self-contained and instrument or transformer rated sites; transformer rated meter forms; test switches and CTs; Blondel’s Theorem; meter accuracy testing; checking the health of your CTs and PTs; and site verification (and not just meter testing). This presentation was given at the PREA Meter School.
This presentation covers differences between self-contained and instrument or transformer rated sites; transformer rated meter forms; test switches and CTs; Blondel’s Theorem; meter accuracy testing; checking the health of your CTs and PTs; and site verification (and not just meter testing). This presentation was given at the PREA Meter School in March 2022.
This presentation will help you understand customer concerns about Smart Meters and AMI. You will also be able to respond better as a Utility and as a Utility Worker.
Throughout this presentation you will:
Understand customer concerns about smart meters and AMI.
Be able to respond as a utility and as a utility worker.
Presented at the Mid-South Electric Metering Association 2015.
Over much of the 20th century, utilities, regulators and customers each relied upon lab and field meter testing efforts which were primarily focused upon the accuracy of the watt-hour meter and demand register. This focus is now changing with overwhelming deployment of electronic meters and significant deployment of AMR and AMI meters throughout the installed base in North America.
Meter Failure modes are changing. More meters are rejected for functional test failures than accuracy tests. One of the benefits of AMI is that utilities can spend less time on residential metering and focus their meter techs on their more complex metering operations. More time can and should be spent inspecting and testing the Transformer rated installations in each utilities service territory.
Presented at the Mid-South Electric Metering Association 2015.
This is a peer-reviewed presentation about Hot Sockets that provides a basic understanding of the condition known as hot sockets and what to look for when investigating a fire in or near a meter box.
Safety is imperative in metering. This presentation discusses dangers, statistics, arc flash, and how to prevent and properly protect yourself from any potential dangers as well as what to look for while on site that could be a hazard.
TESCO was part of a panel discussion on Current Metering Safety Topics. This presentation goes over some of the safety issues in the industry. 06/27/2019
This presentation was requested by the Nebraska Meter Conference and covers all the components of field testing and best practices including a site check list, field test kits and hot socket repair kits.
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
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This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
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Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
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Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
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Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
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Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
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Looking for Dangerouse Installations and Incorrect Billing
1. 1
10/02/2012 Slide 1
Looking for Dangerous
Installations and Incorrect Billing
Prepared by Rob Reese, TESCO
The Eastern Specialty Company
For NREA – Nebraska Rural Electric Association
February 10, 2021
3. 3
Metering Safety
Fatal Electrical Injuries
• There were 166 electrical fatalities in 2019, which was a 3.75%
increase over 2018 and the highest number of electrical fatalities since
2011.
• In 2019, 8% of all electrical injuries were fatal.
• The number of electrical fatalities varies between ages:
– 11% of electrical fatalities occurred in workers aged 20 – 24
– 30% of electrical fatalities occurred in workers aged 25 – 34
– 27% of electrical fatalities occurred in workers aged 34 – 44
– 17% of electrical fatalities occurred in workers aged 45 – 54
– 13% of electrical fatalities occurred in workers aged 55 – 64
4. 4
Metering Safety
Fatal Electrical Injuries
• 30% of all electrical fatalities occurred at a private residence. Industrial
places and premises accounted for another 30% of fatalities. Public
buildings accounted for 13%, street and highway accounted for 11%,
and farm for 6%.
5. 5
How Dangerous is
Metering?
Electricity is Organized Lightning – George Carlin
Any Voltage without current will not kill you, but any voltage
with current can kill you.
7. 7
Safety First - PPE
Personal Protective Equipment
• Leathers
• Rubber Gloves
• Face Shield
• FR Clothing
• Safety Shoes
8. 8
Arc Flash
What is Arc Flash?
While an arc flash is sometimes used interchangeably with “arc fault,”
an arc flash is more accurately defined as the light produced during an
arc fault. An arc fault is a type of electrical fault that results from the
breakdown of an insulating medium between two conductors where the
energy is sufficient to sustain an arc across the insulator (often air) and
can cause extreme amounts of light (arc flash), immense heat upwards
of 19,000 degrees C, and a resulting explosive pressure wave (arc blast).
These forces combine to create a hazardous condition that can vaporize
metal, destroy equipment, and pose a significant hazard to anyone in
the vicinity.
11. 11
More of the Basics
IMPORTANT
Always follow your own utility’s and PSC/AHJ’s requirements
and guideline for PPE, correct meter installations, and safety
procedures.
12. 12
Approaching the Meter Installation
• Always approach an electrical service with caution and while wearing your full PPE.
Why?
• Never stand directly in front of the meter when removing the meter
• Before you even open the box or get the cover off….
• Live box
• Bees
• Other live animals
• Broken Seal
• Cover dropping off
• Signs of Vandalism and Tampering
• Storm Damage
• Missing knock-outs
• Cracked or broken conduit
• Loose connections of the meter base, including meter pulling away from the
building wall and loose mounting screws
• Inadequate fastening of the meter base and/or mast to the building
15. 15
Once the Box is Open
Issues to Look For
• Open line – open line side connection to
the meter socket.
• Missing neutral – missing neutral
connection to the center lug in the meter
socket
• Cross phase condition – cross wiring
between the test block and the meter
socket.
• Hidden jumpers line to load – diversion on
both legs.
• Dead Short - dead short phase to ground
on the load side of one leg of the socket.
• Partial Short - partial short phase to ground
on the load side of one leg of the socket
16. 16
Once the Box is Open
Issues to Look For
• Mechanical breakdown of components
• Excessive moisture
• Environmental contaminants
• Frequent meter change outs (resulting in
loss of jaw tension)
• Excessive electrical load (overload or short
circuit)
• Loose or melted conductors
• Ground settling
• Signs of previous arc flashes
• Corrosion levels on components
17. 17
• Back fed meter socket
• Ground fault
• Phase to phase fault
• Pulling a meter jaw with the meter
• Evidence of a hot socket
Once the Box is Open
Issues to Look For
18. 18
What is a Hot Socket?
• Hot Sockets are not a new phenomenon. Virtually every meter man has pulled a meter with
a portion of the meter base around a blade melted and virtually every utility has been called
to assist in the investigation of a fire at a meter box.
• AMI deployments because of the volume of meters involved put a spot light on this issue.
– What causes a hot socket?
– Are the meters ever the cause of a meter box failure?
– What are the things to look for when inspecting an
existing meter installation?
– What are the best practices for handling potential hot
sockets?
• This presentation will cover the results of our lab
investigation into the sources for hot sockets, the
development of a fixture to simulate hot sockets,
the tests and data gleaned from hot sockets, and
a discussion of “best practices” regarding hot sockets.
19. 19
Root Causes
• Pitted and discolored meter blades
• Melted plastic around one or more of the
meter stabs (typically the plastic around one
stab is where the deformation starts)
• Pitted and discolored socket jaws
• Loss of spring tension in the socket jaws
Common Features and Common Sources of Concern
22. 22
• Calipers show a .01” gap, with
that size gap between jaws
and stabs we were able to
heat meter stabs over 1000
degrees Fahrenheit in a few
minutes.
• The rough spots you see on
the post-test jaw next to the
calipers are over .005” high.
This surface degradation
appears on the stab as well.
• Between the two surfaces
you can have large gaps,
along with insulating by-
product of the arcing, that
can sustain heavy arcing in a
solid state.
Root Causes
33. 33
Billing Issues
Incorrect Multiplier
- Difference between meter reading
and actual energy usage
- VT’s – 480:120 = x4
- CT’s – 400:5 = x80
- Multiplier = 320
The multiplier is
multiplied to the meter
registration to equal
primary energy used.
480:120
400:5
36. 36
Questions?
Rob Reese
TESCO – The Eastern Specialty Company
Bristol, PA
215-310-8809
This presentation can also be found under Meter
Conferences and Schools on the TESCO website:
www.tescometering.com