Tag: electronics

All Things Electronic

Power Supply Voltage Drops: The Basics

If you’re noticing decreased efficiency in your electronic systems and equipment, they may be experiencing what’s known as voltage drop. While power supply voltage drops can be damaging, understanding the basics and how to combat them can help you prevent future harm and protect your equipment. Keep reading to make sure you understand what a voltage drop is, common causes, and how to reduce the risk of voltage drops.

What is a Voltage Drop?

A supply voltage drop describes how the energy of a power supply decreases as the electrical current flows through passive elements in an electrical circuit. The potential for voltage drop increases with the length of the circuit. The further the electricity travels from the power supply, the higher the risk of voltage drop, resulting in weaker currents and decreased power.

Excessive voltage drop can be damaging and may lead to disruptions, inefficient electrical systems, and even mechanical harm. These issues can negatively impact your electrical equipment, potentially resulting in higher operating costs and decreased productivity. Understanding some of the most common sources of voltage drops can help you better prepare for and prevent damage to your electrical systems.

Common Causes of Supply Voltage Drop

  • Length of the power cable
  • Cable gauge size
  • Using AC power over DC power
  • Amount of current at the power supply
  • Power line resistance

How to Measure Voltage Drop

While small amounts of voltage drop are expected―especially for lengthy electrical circuits―monitoring for excessive voltage drop can help protect your equipment and prevent harm.

Ohm’s law describes a formula to calculate the proportional relationship between voltage, current, and resistance. The formula to calculate voltage drop is:

V = I x R

Where V represents voltage, I represents current, and R represents resistance. For further assistance in calculating voltage drop, contact a team member at Quail Electronics, Inc.

Minimize Voltage Drop in Your Power Supply

You can use various techniques to compensate for the effect of voltage drop on long circuits or where voltage levels must be accurately maintained.

  • Appropriate Wire Size: The most important factor in avoiding excessive voltage drop is selecting the correct wire size. Choose a wire gauge appropriate for the distance and current you require to best reduce resistance in your system.
  • Increase Conductor Size: One of the simplest ways to reduce voltage drop is to increase the diameter of the conductor between the source and the load, lowering the overall resistance.
  • Routine Inspection: Regularly examining your power cables and electrical systems will help you quickly identify any significant voltage drop. Make any necessary repairs as fast as possible to avoid lasting damage or costly maintenance.
  • Specialized Power Supply Design: Custom-made power cords and connectors can help you easily balance power loads and regulate voltage levels for improved performance.
  • High Voltage Power Cables: Using high-voltage power cords increases the amount of voltage flowing through a circuit and minimizes the amount of current. Higher voltage levels result in decreased voltage drop.

Learn more about global voltage standards with our helpful International Voltage and Frequency Guide.

Contact Quail Electronics, Inc. Today with Any Questions

With over 30 years of industry experience, Quail Electronics, Inc. is a leading expert in all things electronic. We offer competitive pricing, convenient same-day shipping, and minimal order requirements to get you precisely what you need for your applications. Our trained specialists can answer any questions and help you choose the best types of power cords for your requirements.

For more information about supply voltage drop and how to protect your electrical equipment, contact Quail Electronics, Inc. today, and our team will assist you with any questions.

Different Wire Termination Styles for Power Cords

Wire termination refers to the end style of a power cord. The way a cable is terminated affects its applications and determines how it can be used.

In this blog, we talk about the different ways to terminate a power cord, various wire termination methods, and types of electrical terminals for creating new cable connections.

Types of Power Cable Ends

The end of a power cable determines the available wire termination methods for that specific application. The most common cord end styles for power cables are:

  • Standard Ends
  • Stripped Ends
  • Custom Ends

For standard power cords, both ends can be plugged in or unplugged, and the cord is ready to use. All internal wires are hidden, meaning wire termination is contained in the plug or connector. However, for stripped and custom power cable ends, there are different ways to terminate a cord’s exposed wires.

Wire Termination Methods for Stripped End Power Cords

Stripped end power cords feature exposed wiring, where the insulation has been removed or “stripped” away from one end of the power cord. Also referred to as removed outer jacket cords or ROJ cords, the wire termination methods for these cords are permanent and result in reliable results.

Crimped Wire Termination

Crimped wire termination is named for the crimping tool required. A contact or terminal is “crimped” to the stripped wire, forming a permanent attachment. Crimp termination is the most common type of wire termination and forms a mechanically strong, reliable connection between the power cord and the attached terminal.

Soldering Wire Termination

Soldering wire termination is often used for direct hard-wiring applications. The stripped wires are treated with Flux and the desired contact or terminal is soldered directly to the exposed wires. Soldered wire termination is often used for simple applications or when a wire is too small for crimping tools.

Terminals for Stripped & Custom Cable Termination

Stripped and custom-end power cables use electrical terminals to create new ends for connections. Available in insulated styles, terminals come in a range of connection options:

  • Ring Terminals: Used to ground a wire in a device.
  • Locking Ring Terminals: Offer a more secure connection for grounding wires.
  • Fork/Spade Terminals: Allows for fast wire connections.
  • Quick Disconnect Terminals: Used when wires require fast disconnection.
  • Flag Terminals: A left-angle version of quick disconnect terminals.

When selecting a terminal, ensure the sizing matches your wire gauge.

Quail Electronics, Inc. is Your Expert in Power Cords & Electronic Supplies

Got questions? With over 30 years of experience and a team of knowledgeable experts, we can answer any question and assist you with any inquiries. With competitive pricing, convenient same-day shipping, and minimal order requirements, we supply you with precisely what you need. Contact us with any questions or to get started on your order today.

Continue reading Different Wire Termination Styles for Power Cords

Snap-On and Screw-On Inlets

Snap-On and Screw-On Inlets

For today’s “how-to” topic, we will be discussing how to mount a power inlet/outlet onto a device.

There are two different types of ways to mount a power connector. One way is referred to as a Snap-On inlet (as the IEC-C20 inlet shown below). For example, in the data center located in your office building, the Snap-On inlet would be mounted on by inserting into the server rack. Soldered ends or quick disconnect terminals connect to your equipment’s live wires to the metal tabs at the back of the inlet. The “lips,” (highlighted below) which are small pieces of plastic on the sides, holds the inlet in place once connected to the server.

snap-on c20 - lips

 The second type is called a Screw-On inlet. Continue reading Snap-On and Screw-On Inlets

Power Strip vs. Surge Protector

Is there a difference between power strips and surge protectors? Both let you power several devices at once. Heck, they even look similar. But there are distinct differences you need to understand before deciding between the two. If you feel confused, don’t worry. We’ll break it all down for you in this post!

The Basic Differences Between Power Strips and Surge Protectors

A power strip (Image 1) is an electrical unit featuring multiple electrical sockets enclosed in an electrically shielded case. The strip is powered by a single electrical cord plugged into a wall outlet. Surge protectors, on the other hand, (Image 2) have an electrical component that protects devices plugged into the power strip from an electrical surge.

One way to tell the difference is that a surge protector has a light indicator on the unit; the indicator illuminates to show the strip is protected.

Continue reading Power Strip vs. Surge Protector

Don’t Be Shocked What The Holidays Bring!

It is crucial to practice electrical safety. Especially during the holidays! Here is an easy way to remember to be extra cautious this year, “The Twelve Days of Christmas” style!

On the first day of Christmas, my true love said to me, “Check for bare wires… before you wrap the tree!”

moses

On the second day of Christmas, my true love said to me, “Avoid overloading outlets… only plug one device… into each!” Continue reading Don’t Be Shocked What The Holidays Bring!

What is a Strain Relief?

We all know that an electrical power cord is made up of two or more wires running side by side to form an assembly, in which the ends can connect to two devices, allowing electrical signals to flow from one device to another. However, most of us wonder what that big molded thing at the end of a connector is. That big “thing” is called a strain relief. Sounds pretty self-explanatory, right? Just like its name, a strain relief relieves a cable of stresses and tensions that could break the conductor inside or even the connection between the plug and the cable.

There are different types of strain relief too. The first one always comes molded to the jacket and part of the plug. This type of strain relief is mainly designed to avoid any damage to the conductors and separation of the plug from the cord itself.

pic 1

Second, we have a type of strain relief called Cable Glands. Continue reading What is a Strain Relief?

Electric Vehicle Part 1

EV plug 1

Electric vehicles have become a way of life. To prove that is true is the new Corporate Average Fuel Economy (CAFE) standard put into place by the Obama Administration. By 2025, every new vehicle sold in the United States will need to reach at least 54.5 mpg. In order to operate, the plug-in hybrid EVs that function on batteries need to be charged occasionally. No more trips to the over-populated, busy gas stations. You can fill up right at home overnight or at work during the day. The car simply plugs in while it is immobile for a given period of time. It can also charge while being driven – once the car is coming to a stop and the brakes are applied, kinetic energy is transformed into chemical energy in the battery.

In order to operate, the plug-in hybrid EVs that function on batteries need to be charged occasionally. No more trips to the over-populated, busy gas stations. You can fill up right at home overnight or at work during the day. The car simply plugs in while it is immobile for a given period of time. It can also charge while being driven – once the car is coming to a stop and the brakes are applied, kinetic energy is transformed into chemical energy in the battery.

Continue reading Electric Vehicle Part 1

CES 2015 Roundup

international-ces-2015-las-vegasAs the new year begins, it’s also time to roll out the fancy new gadgets. The 2015 Consumer Electronics Show (CES) roared through Las Vegas last week.  The weeklong showcases over 3,600 exhibitors and attracts over 160,000 attendees. Previous CES events have included high-profile introductions such as the world’s first VCR, camcorder, DVD player, household robots, and most recently, 3D printers and 4k televisions.

Continue reading CES 2015 Roundup