A Simple Trick to Modify the Ratio on a Current Transformer
A Simple Trick to Modify the Ratio on a Current Transformer What do you do when you have a CT with a primary current ratio that is too high for your...
Increasing Revenue with High Accuracy CTs
Increasing Revenue with High Accuracy CTs By Stephen Schaefer Stephen is a guest author for Peak Demand’s Knowledge Center and editor of Learn Metering found at www.learnmetering.com. Increasing revenue is something that we...
Extended Range CTs vs High Accuracy CTs
Extended Range CTs vs High Accuracy CTs By Stephen Schaefer Stephen is a guest author for Peak Demand’s Knowledge Center and editor of Learn Metering found at www.learnmetering.com. Extended range CT’s are all the...
How Extended Range CTs Help Reduce Inventory
How Extended Range CTs help you Reduce Inventory By Steve Lindsay The Alta Series of metering current transformers by Peak Demand are designated as both high accuracy and extended range. These designations...
Instrument Transformer Construction – Indoor vs. Outdoor
Instrument Transformer Construction – Indoor vs. Outdoor Instrument transformers are used in both indoor and outdoor applications. The function of the instrument transformer is essentially the same but there is a...
Why is the CT on my High Voltage Application Rated for 600V?
Window CTs and High Voltages "I am looking for CTs for a high voltage application and the one you recommended is rated for 600V. That doesn't make sense." I have heard...
The Impact of Heat on Current Transformers
The Impact of Heat on CTs Heat can have a serious impact on the rating factor of a current transformer. The IEEE C57.13 standard addresses the "de-rating" of a current transformer's rating...
Instrument Transformer Construction
Instrument Transformer Construction Potential (or voltage) transformers consist of two separate windings on a common magnetic steel core. One winding consists of fewer turns of heavier copper wire on the core. ...
The Function of an Instrument Transformer
The Function of an Instrument Transformer The term “instrument transformer” is a general classification. It applies to electrical devices which change current and voltage from higher or potentially dangerous levels to...
CT Selection for Medium Voltage Switchgear
CT Selection for Medium Voltage Switchgear Current Transformers (CTs) are critical components in Medium Voltage, Metal Clad Switchgear. Selecting CTs for Switchgear relay and metering applications requires several important considerations. You...
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