ESCT-RC240-10000A, Rogowski Coil, 75mm Diameter, 85mV/kA Rated for 10000 Amp Recommended, 3 Meter Cable length

Flexible clip-around Rogowski coil for the electronic measurement of AC current with galvanic separation between the primary circuit (power) and the secondary circuit (measurement). 

 

Features

• Rated insulation voltage 1000 V Cat III PD2
• Accuracy Class 0.5 (IEC 61869-2)
• Protection degree IP67
• 3 m output cable (other lengths available see page 8)
• Ambient temperature 40 °C … +80 °C
• Very flexible and thin coil: 6.1 mm
• Slot for attaching the loop on the primary with a cable tie
• An innovative patented clasp drastically reduces the positioning error near the closing
• Internal shield for enhanced measurement accuracy at low primary currents.

Advantages

• Thin, flexible, and light weight solution
• Very low positioning error
• Quick, non-intrusive and easy setup
• A single sensor for a large current range without overload
• Less influenced by external fields
• Adaptable for a large range of cable diameters

Applications

• MV/LV substations on LV side: Transformer Condition Monitoring
• Power metering: current measurement for active power calculation
• Building sub-metering: energy efficiency monitoring, consumption analysis and cost allocation
• Power quality monitoring: electrical loads and distribution system equipment
• Fault Detection, Isolation and Repair (FDIR): isolate the site of the fault
• Remote Terminal Units (RTU)
• Phasor Measurement Units (PMU)

Standards

• IEC 61010-1: 2010; IEC 61010-2-32 ed.3: 2012
• 1) IEC 61869-1 ed1.0: 2007; IEC 61869-2: ed1.0: 2012
• 1) IEC 61869-6: draft 2016; IEC 61869-10: draft 2016

Specification

LEM Part Number	ESCT-RC240-10000A
Function	AC Current Measurement
Measuring Range	0 – 5,000 Amp RMS (Contact Us for Possible Replacement for wider range)
Secondary Voltage (Sensitivity)	85mV
Frequency Measuring Range	50-300kHz
Operating Voltage	Self Powered
Accuracy	0.5% from 25 to 5000 Amp
Phase Angle	< 0.004
Coil Diameter (?)	24cm
Coil Circumference
Integrator to Coil Cable	3M Twisted Pair
Maximum Voltage	1000V Reinforced insulation according to EN 61010-1
Operating Temperature	-15°C to 65°C
Storage Temperature	-45°C to 80°C
Isolation (50Hz, 1 min)	7.4kV
Overload	300,000 Amp
Termination Style	2 Stripped Wires
Weight	130g
Factory Pack Qty	1
Certifications	UL, ROHS

Datasheet

• Product Datasheet

Application Notes

1) The Rogowski coil can measure any primary current as there is no saturation effect.

2) Not tested given that in the worst case (load = 0 Ohm i.e. short circuit on the output) the peak dissipated power remains low (< 2 Watts)

3) Frequency bandwidth and phase shift modeling schematic can be provided on request.

4) Referring to the main phase offset of 90 ° (a Rogowski coil is a derivative current transducer)

5) Considering a primary conductor of at least ? 15 mm, perpendicular and in contact with the Rogowski coil.

6) Considering an external conductor of at least ? 15 mm the same current level than internal conductor, perpendicular and in contact with the Rogowski coil.