Technical Articles

Supplier:

Weschler Instruments


Weschler Instruments has published these technical articles:

(Meters, Readouts and Indicators)
From this Article:
Measurements of process parameters have historically been accomplished by the analog panel meter (APM). As processes evolved, a need arose for more accuracy in readings. This led to development of the... (View Full Article)
(Transformers)
From this Article:
Current transfomers are specified by size (VA rating), ratio and accuracy. The VA rating determines the maximum secondary impedance (lead+terminal+meter impedance) that can be driven at the stated... (View Full Article)
(Transformers)
From this Article:
The Current Transformer (CT) is used to sense AC current in single-phase or three-phase mains circuits. The CT typically has a 1A or 5A AC secondary that connects to a current, power or energy meter.... (View Full Article)
(Meters, Readouts and Indicators)
From this Article:
A brief overview of the various panel meter types and their capabilities.... (View Full Article)
(Power Supply and Conditioning)
From this Article:
Power is the rate at which work is done (work/time). It is also the rate at which energy is generated or used. For dc systems, power is expressed in watts: P=VdcAdc. For ac systems, the determination... (View Full Article)
(Power Supply and Conditioning)
From this Article:
Regardless of popular belief, Power Quality is NOT difficult to understand. The problem is finding reliable sources of such information, provided in an easy to understand way with real world examples.... (View Full Article)
(Sensing and Measurement Instruments)
From this Article:
Most industrial processes require that certain variables such as temperature, flow, level or pressure, remain at or near some reference value (setpoint). Closed-loop control is used to achieve this.... (View Full Article)
(Electrical Distribution and Protection)
From this Article:
Use this chart to select the CT rating for various motor sizes. This chart applies to three phase AC induction type, squirrel cage and wound rotor motors. Also see related article on Current... (View Full Article)