RT 2000【PDF 1/4 页】SENSOR CURRENT 2000A MOD

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RT 2000

Flexible split-core Rogowski coil for the electronic measurement

of AC waveform currents, with galvanic separation between the

primary circuit (power) and the secondary circuit (measurement).

The patented Perfect Loop Technology definitely solves the problem

of the Rogowski coil opening by introducing a specific magnetic

device. This dramatically reduces both the error due to the position of

the measured conductor within the sensor, and the error due to the

proximity of external conductors.

Features

● Split core type

d I P

Output voltage (instantaneous) 2) V out = M × V

I PN

V out

L S

R S

Electrical data

Primary nominal rms current 2000 A

Mutual inductance transfer ratio 1) (± 5 %) 0.064 μH

d t

Output voltage (sinusoidal wave) 2) V out = 2 × π × M × f × I P AC V

Example: @ 50 Hz, 500 A V out = 2 × π × 64 × 10 -9 × 50 × 2000 = 40.2 mV

Coil inductance (± 5 %) 190 μH

Coil resistance T A = 20 °C typical 60 ?

High cut-off frequency 2) (+ 3 dB) 500 kHz

● ? 125 mm sensing aperture for

non-contact measurement

● 1.5 m output cable

● Insulating plastic case recognized

according to UL 94-V0.

Advantages

● Thin, lightweight and flexible

● Easy installation suitable even for

the most confined spaces

● Very low positioning error.

Accuracy - Dynamic performance data

ε L Linearity error none

TCM Temperature coefficient of M 30 ppm/K

ε P Positioning error 3) max 0.65 %

General data

T A Ambient operating temperature (90 % RH ) - 10 .. + 65 °C

T S Ambient storage temperature - 25 .. + 70 °C

m Mass 90 g

IPxx Protection degree IP 2X

Standards Safety IEC 61010-1: 2001 2nd edition

IEC 61010-2-032: 2002

IEC 61010-031: 2002 + Amd 1: 2008

Applications

● Power meters

Current measurement for active

Power calculation.

● Energy sub-meters

For energy efficiency monitoring,

consumption analysis and costs

allocation.

● Power quality monitoring

● Condition monitoring

(e.g. Motor loads such as

conveyers, pumps or HVAC).

● Distributed measurement

systems.

Notes :

LEM provides uncalibrated coils with up to 5 % manufacturing tolerance.

Calibration must be performed within the final application.

Open circuit condition (no load).

Considering a primary conductor of at least ? 15 mm perpendicular to

Application domain

● Energy Solutions.

the RT loop.

N° 97.F9.69.000.0

Page 1/4

11December2013/version 3

LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice

www.lem.com

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