Sites:
Home > Technical Library > Manufacturing and Process Equipment > Inspection Tools and Instruments > Using the ECOLEC Series 100 Meters as a CT Operated Meter (.pdf)

Using the ECOLEC Series 100 Meters as a CT Operated Meter

From ASI/Automation Systems Interconnect, Inc.

The ECOLEC Series 100 meters are specified as direct connected meters. They can however, in conjunction with external Current Transformers (CT's), be used as CT operated meters. The use of external CT's enables the meter to measure load currents well in excess of the meter's maximum current rating of 60 Amps. The actual kWh consumption per phase must then be calculated by multiplying the difference between the current and previous readings (compensated for roll over) by the CT ratio used.

Read the Whole Article
Product Announcements
CBI-electric: low voltage - Rail Mount Meters: Ecolec 100 Series
Rail Mount Meters: Ecolec 100 Series from Circuit Breaker Industries have applications in residential, commercial, and rural electrification. (read more)
GE Digital Energy - SMTB4 Compact IEC Test Block and Test Plug System
GE's SMTB4 is a 4-pole compact IEC test block and test plug system designed to isolate protection relays and other secondary devices from voltage and current sources, and to allow functional testing... (read more)
Weschler Instruments - Monitoring Electric Energy Use
Reducing energy consumption is a federal mandate for many projects and can result in significant cost savings. The E-Mon D-Mon Energy Meters are an effective way to monitor energy use within a... (read more)
Panasonic Electric Works - Simple Power Meter for CO2 Emissions Monitorin
The Panasonic KW series of power meters, power analyzer are simple, yet effective tools to monitor and analyze the electricity usage and CO2 emissions of machine and facilities, widely installed in... (read more)
Weschler Instruments - Current Transformers vs. Current Transducers
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. (read more)
 
Topics of Interest

The ECOLEC Series 100 meters are equipped with a data output for Automated Meter Reading (AMR) purposes. This Single Line Messaging System (SLMS) output from the meter is transmitted on the Lateral...

Current transformers (CT's) provide a simple, inexpensive and yet accurate means of sensing current flow in power conductors. They are available in 3 basic configurations: Split Core CT's are...

The dual phase EC12x and three phase EC13x meters in the ECOLEC 100 Series have been designed to measure energy in dual phase three wire and three phase four wire systems respectively. These multiple...

The ECOLEC Series 100 meters are intended for use as Accuracy Class 2 direct connected electricity meters. They are small, electronic, rail mount units with a LED consumption rate / status indicator...

CT's provide an isolated, accurate measurement of the current in the primary. Usually CT's have a one turn primary - a conductor that is part of the circuit being measured. CT's have very little...