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Home » Keywords » voltage levels

Items Tagged with 'voltage levels'

ARTICLES

open fuse

How to Properly Diagnose Low-Voltage Short Circuits in the Field

Strong economy, housing market expected to fuel HVAC sales growth
Orr hs
Bryan Orr
March 19, 2018
No Comments
I see techs in the field get the most frustrated when they have a low-voltage short they can’t seem to locate. The challenge techs face with low voltage diagnosis is a combination of poor process and some root misunderstanding about what they are looking for.
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Electro Static Technology: Voltage Instrument

Electro Static Technology: Voltage Instrument

February 15, 2016
No Comments

It is designed and configured to take and capture highly accurate voltage measurements from the spinning shafts of motors. It comes with a conductive microfiber tipped probe for shaft contact, a probe holder with magnetic base, and a compact carrying case. 


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DOE Seeks Graduate Students to Research Building to Grid Integration

Deadline for applying is Nov. 15, 2015, at 11:59 p.m. EST
November 12, 2015
No Comments

The U.S. Department of Energy’s (DOE’s) Building Technologies Office is seeking graduate students interested in exploring energy systems of buildings and how building assets or functions can integrate and transact with the energy grid supplying the building’s energy. The deadline for applying is Nov. 15, at 11:59 p.m. EST.


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State of Washington to Develop Smart Buildings, Campuses Demo

Will test transaction-based energy management
November 11, 2015
No Comments

The U.S. Department of Energy (DOE) is matching a $2.25 million Clean Energy Fund grant from the Washington Department of Commerce to research, develop, and demonstrate the technologies needed to create smart buildings, campuses, and cities to better manage energy usage.


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Klein Tools Inc.: Voltage  Tester

Klein Tools Inc.: Voltage Tester

June 22, 2015
No Comments

The NCVT-3 Non-Contact Voltage Tester with Flashlight identifies ac voltage in cables, cords, circuit breakers, outlets, wires, doorbells, thermostats, low-voltage lighting systems, irrigation systems, and more. 


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Two common configurations in three-phase motor windings.

The Professor: Three-Phase Motor Voltage Unbalance

Troubleshooting an Overheating Compressor
Headshot tomczyk john
John Tomczyk
May 6, 2013
One Comment

Compressor overheating is usually caused from high compression ratios. High compression ratios can be caused from a combination of high condensing pressures (temperatures) and low suction (evaporating) pressures.


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Joe Marchese

Ice Breaker: Troubleshooting Controller Inputs

Headshot marchese joe
Joe Marchese
November 12, 2012
No Comments
Today more and more systems are incorporating microprocessor controllers into their design. Troubleshooting the operation of these controllers can be a little tricky at times, but if broken down into sections it can be easier to handle.


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