Here’s what more than 2,500 business decision-makers around the world say.Download the report
...with the Facility Hero app in hand! Discover how you can optimize your maintenance efforts today.Learn more
Access tailored services, 24/7 self-service and expert help. Anywhere, anytime, any project.Discover now
Everything you need to know about our IoT technology backbone.Learn more
Explore our global offerings or select your country from one of our five regions.Global
Découvrez nos offres globales ou sélectionnez votre pays dans l’une de nos cinq régions.
BCPM, the LVCT (Low Voltage Current Transformer)
Low Voltage Current Transformer Specification
The BCPM uses 1/3 V output split-core CTs for the auxiliary inputs
The 1/3 Volt low-voltage CT specifications are:
Accuracy: 1% from 10% to 100% of rated current
Frequency range: 50/60 Hz
Operating temperature Range: -15° C - 60° C
Storage temperature Range: -40° C - 70°C
Humidity range: 0 - 95% non-condensing
Leads: 18 AWG, 600 Vac, UL 1015 twisted pair, 1.8m standard length
Max. Voltage L-N: sensed conductor 600 Vac
The apparent power capacity (or burden rating) doesn't really apply since these are voltage output devices (rather than current mode like traditional Current Transformers). This is one of the great advantages of voltage mode CT (the other being they don't need shorting blocks). The voltage mode CT has an internal burden resistor, usually tens of ohms or less. The input of the meter monitoring the voltage mode CT typically has an input impedance of tens of thousands of ohms or more in parallel with the CTs burden resistor (which can reduce the CTs output voltage very slightly). As long as the series resistance of the wire between the voltage mode CT and the meter is less than hundreds of ohms, the accuracy of the CT will be little affected. Voltage mode CT can drive a much longer wire run using smaller gauge wire than a traditional current mode CT.
Sign up for all the latest solutions, offers and best practices straight to your inbox.
We are excited that you have joined the group. You will receive your welcome email soon describing the program and what to expect in the upcoming weeks. Enjoy!