RT2000 datasheet(1/4 Pages) LEM

部件名	RT2000

功能描述	Split core type

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制造商	LEM [LEM]

网页	http://www.lem.co.jp/HQ/en

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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

N° 97.F9.69.000.0

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.

Electrical data

I

PN

Primary nominal rms current

2000

A

M

Mutual inductance transfer ratio 1) (± 5 %)

0.064

µH

V

out

Output voltage (instantaneous) 2) V

out = M ×

V

out

Output voltage (sinusoidal wave) 2) V

out = 2 × π × M × f × IP AC

V

Example: @ 50 Hz, 500 A

V

out = 2 × π × 64 × 10

-9

×50 ×2000=40.2mV

L

S

Coil inductance (± 5 %)

190

µH

R

S

Coil resistance T

A = 20 °C typical

60

Ω

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

500

kHz

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

Notes: 1) LEM provides uncalibrated coils with up to 5 % manufacturing tolerance.

Calibration must be performed within the final application.

2)

Open circuit condition (no load).

3)

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

the RT loop.

Features

● Split core type

● Ø 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.

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.

Application domain

● Energy Solutions.

dI

P

dt

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