IR windowsfor transformers

LENSES BY EDMUND OPTICS ... Description. TECHSPEC® 1.1 HP Series Fixed Focal Length Lenses are designed for the harsh demands of factory automation (FA) and ...

IrisIR windows

Without opening the cabinet, you can check the fluid level, temperature, and pressure gauges. You can also inspect the bushings and cable terminations. But, you won’t be able to take a heat reading through the glass.

Thanks to its efficient optical system, high optical power and smart design, this UV LED spot can easily fit OEM and integrators needs. The USPOT also performs ...

Monitoring your transformer is key to safe and efficient operation. But it can be an involved task. Part of the difficulty is that routine inspections often occur while the transformer is under load. This exposes workers to potential arc flash risks, calling for special PPE. Inspection windows provide a way to monitor without having to open the transformer cabinet. This helps workers more easily comply with electrical safety requirements. It also may remove the requirement for certain PPE during routine inspections.

Compared to other common glasses, the optical transmission of pure silica extends well into the ultraviolet and infrared wavelengths, so is used to make lenses ...

Unlike the infrared option, viewing windows allow visual inspections only. Providing visual checks inside the cabinet. Viewing windows are typically glass instead of crystal. Some viewing windows are made of more durable materials, especially for industrial applications where broken glass would pose a significant risk.

A magnifier (i.e. magnifying lens) is a lens or combination of lenses used to magnify (or enlarge) an object. Magnifiers and magnifying glasses enable people to magnify a variety of objects (e.g. books, newspapers, fine print, stamps, coins, antiques, art, jewelry, gemstones, foliage, insects, and rocks). The magnifying glass was invented in 1250 by Roger Bacon. Today, over 750 years later, magnifiers and magnifying glasses are more popular than ever, assisting people with hobbies and crafts and also helping people with low vision, macular degeneration or other vision conditions to see better.When it comes to magnifiers, most people probably think of the classic hand-held magnifying glass used by Sherlock Holmes. However magnifiers come in a wide variety of shapes, sizes and magnifications. At Blaxall Optics Vision, we stock over 250 different magnifiers! In addition to Hand-Held Magnifiers, we also carry Hands-Free Magnifiers, Lighted Magnifiers, Page, Bar & Dome Magnifiers, Loupes, Linen Testers & Stand Magnifiers, Pocket Magnifiers, Reading, Specialty Glasses & Monoculars, Magnifying Mirrors, Portable Microscopes, Opera Glasses & Binoculars,  Each of the magnifiers in these categories meets different magnification needs. In order to select the best type of magnifier to meet your individual magnification needs, please consider the following information. First, we need to discuss and understand three main points -- lens size, magnification, and focal length -- on how magnifiers work. Lens Size The lens size is the optical area of the lens, generally measured in diameters for round lenses or in length and width for rectangular or square lenses. The lens size is a very important component of a magnifier because the lens size needs to be large enough or small enough to use the magnifier effectively. (Some people want the largest lens size possible to see as much of a subject as possible. Other people want a small lens size to enable them to keep the magnifier in their pocket, purse or handbag.) In any case, purchase the magnifier to meet your particular needs. Magnification   Magnification is the process of enlarging an object in visual size, normally through an optical lens. It is the ratio between the apparent size and the true size of the viewed object behind the lens. If an object behind the lens appears ten times larger than its true size, and the object is in focus (i.e. at the proper focal length), the magnification is 10x. Another term used as a measurement of optical power, but different from magnification is diopter. Diopter refers to the optical power (or strength) of the magnifying lens. It is the strength of the magnifying lens measured at one meter. Four diopters (4.0D) represent a 100% increase in magnification or 1x power magnification. A 20 diopter (20.0D) measurement is approximately equal to 5x power magnification. A rough formula to convert from magnification power to diopters is to multiply the magnification power by four. Focal Length Focal length is the distance from the magnifying lens to the object behind the lens when the object is in focus.  The stronger the optical power of the magnifying lens, the shorter the required distance between the magnifier and the object behind the lens.  If you are observing jewelry through a 10x loupe, both the gem and your eye need to be very close to the loupe. However, if you are able to read a book with a 2x hand-held magnifier, the magnifier can be several inches away from the book and your eyes can be several inches away from the 2x hand-held magnifier. Relationship of Lens Size to Magnification Please keep in mind, as the lens size (diameter) of the magnifier lens increases, the magnification power of the magnifier decreases. As the lens size of the magnifier lens decreases, the magnification power of the magnifier increases. This is a result of the amount of curvature in the magnifier (lens). Magnification power is a result of the amount of curvature in the magnifier lens. As the lens size increases, the amount of curvature in the lens decreases, resulting in lower magnification power of the lens. As the lens size decreases, the amount of curvature in the lens increases, resulting in higher magnification power of the lens.  This is why higher magnification lenses are generally smaller in size than lower magnification lenses.Field of View The end result of magnification is to provide you with a magnified “field of view.” The field of view is the area of magnification you see through the lens. Generally, the larger the diameter (or lens area for rectangular or square lenses) of the lens the larger the field of view of the lens. However, not all magnifiers are the same and some have larger fields of view than others. Not all manufacturers identify the field of view as a specification of the magnifier. Types of Lenses Along with understanding the lens size, magnification and focal length, it is important to purchase the appropriate type of material or composition of the optical lens to meet your needs. Magnifier and magnifying glass optical lenses can be made of glass or acrylic (plastic) materials. Each type of lens has advantages and disadvantages when compared to the other. Generally, glass lenses allow more light to be transmitted through the lens and usually have very clear optical qualities. It is hard, but not impossible, to scratch a glass lens. A glass lens is generally heavier than an acrylic lens of the same size.

If you’ve already got a transformer on-site, you can still install viewing and IR windows. It’s a fairly straightforward process.

MTF is a measure of the quality of an image formed by a lens or an electro-optical system. It has the following characteristics: ▫ It is a quantitative and ...

Maddox can install a viewing or IR window on any transformer you order. We’re happy to add this feature to new-built or reconditioned units on request.

Thermal imaging camera

You can strategically place the IR window so that you can see the gauges through it, too. If so, you won’t need a separate viewing window to check gauges.

Acrylic lenses are used as an alternative to glass lenses. They are usually very lightweight compared to glass lenses. Acrylic is the common name for Poly(methyl methacrylate) (PMMA), a thermoplastic or transparent plastic, created in 1928. Its composition normally prevents breakage and shattering and it is normally scratch-resistant. With modern technology, it has become possible to produce magnifiers with exceptional optical qualities using an acrylic lens. A majority of today’s magnifier lenses come with a high quality acrylic lens

If you’re installing a viewing window, make sure it’s placed so you can effectively see what you need to monitor visually. Place the window where you can read the pressure vacuum, liquid level, and/or temperature gauges.

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IR WindowsFLIR

IR windows provide both thermal and visual monitoring options. For this reason, they are an ideal choice. But, if you don’t need thermal monitoring, viewing windows work great. Viewing windows may also cost less. They are the perfect choice for monitoring the open and closed positions of mechanically operated switches.

Diopter refers to the curvature of the lens. As the diopter increases, the lens become thicker and the curvature greater. As the curvature increases, light rays are redirected to fill a greater portion of the viewer’s retina which makes the object look bigger.

CorDEXIR Windows

Inspection windows come in a few different styles. In this article, we’ll cover the different versions and installation considerations for each.

Transformers have monitoring devices such as gauges, sample valves, and test ports to help identify issues in the transformer before they become critical.

FlukeIR windows

Reach out if you’ve got any questions about viewing and IR windows. If you’re ordering a transformer and would like these installed, fill out the form below.

IR windows also work with thermal imaging cameras. A thermal imaging device gives you an overall picture of heating around the tank and bushings. It also gives some information about the unit’s overall operating temperature. This can help identify unusual hotspots. Hotspots at the bushings can be caused by loose or faulty connections. Finding and correcting such issues early prevents catastrophic failures later on.

The distance from the outer most ray ot the optical axis is called the transverse spherical aberration (figure 3). There exists a point at which the ...

IRWindow for electrical panel

Transformer enclosures protect transformers from the elements and users from the transformer. Learn what transformer enclosure you need for your project.

Inspection windows are an electrical maintenance safety device. They provide a convenient and safe way to monitor the internals of the transformer cabinet. Namely, the gauges and bushings.Â

There is more than one formula to converts the diopter of a lens into its power, we as a company use the common formula: Magnification = (Diopter / 4) +1

Refractive index is measured by a standard method.104 It covers transparent and light colored liquids having a refractive index in the range from 1.33 to 1.50.

An infrared (IR) inspection window allows light energy to pass between the inside and outside of the cabinet. This is key for measuring the temperature of the transformer’s bushings and other components inside the cabinet. These windows are commonly made of crystal, not glass. It is important to consider the placement of the IR window. It should be located where a heat gun can easily point at the bushings. The gun will give you an accurate temperature reading of each bushing. And, you don’t even have to open the cabinet.

IR windowsfor switchgear

NB:  As you increase the magnification the lens size effectively decreases. It is not possible to get a high power lens in a large diameter. Opticical combinations are a compromise for  the “ideal” magnifier.

What kind of bushings do you need on your padmount transformer? Check out our padmount bushings guide to learn about different bushing types and applications.

Powers refers to how much larger an object is made to look through a magnifying lens. Power is typically indicated by an X such 2X or 4X.

Transformer inspection windows: viewing & IR windows provide a convenient and safe way to monitor a transformer's gauges and bushings without opening the cabinet.