LA 205-S【PDF 1/3 页】TRANSDUCR CURENT CLOSE LOOP 205A

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Current Transducer LA 205-S

For the electronic measurement of currents: DC, AC, pulsed...,

with galvanic isolation between the primary circuit (high power)

and the secondary circuit (electronic circuit).

16137

Electrical data

I PN = 200 A

Features

I PN

I PM

? P max

R M

I SN

K N

V C

I C

Primary nominal current rms

Primary current, measuring range

Measuring overload 1)

Measuring resistance

with ± 12 V @ ± 200 A max

@ ± 300 A max

with ± 15 V @ ± 200 A max

@ ± 300 A max

Secondary nominal current rms

Conversion ratio

Supply voltage (± 5 %)

Current consumption

200 A

0 .. ± 300 A

600 A

T A = 70°C T A = 85°C

R M min R M max R M min R M max

0 68 0 66 ?

0 33 0 30 ?

5 95 5 93 ?

5 50 5 49 ?

100 mA

1 : 2000

± 12 .. 15 V

20 (@ ± 15 V) + I S mA

● Closed loop (compensated)

current transducer using the Hall

effect

● Isolated plastic case recognized

according to UL 94-V0

● Patent pending.

Advantages

● Excellent accuracy

● Very good linearity

● Low temperature drift

● Optimized response time

● Wide frequency bandwidth

Accuracy - Dynamic performance data

X G Overall accuracy @ I PN , T A = 25°C

L Linearity error

I O Offset current @ I P = 0, T A = 25°C

I OM Magnetic offset current 2) @ I P = 0 and specified R M ,

after an overload of 3 x I PN

I OT Temperature variation of I O - 10°C .. + 85°C

t ra Reaction time @ 10 % of I PN

t r Response time 3) @ 90 % of I PN step

di/dt di/dt accurately followed

BW Frequency bandwidth (- 3 dB)

General data

± 0.8

< 0.1

Typ Max

± 0.15

± 0.50

± 0.15 ± 0.30

< 500

< 1

> 100

DC .. 100

μs

A/μs

kHz

● No insertion losses

● High immunity to external

interference

● Current overload capability.

Applications

● AC variable speed drives and

servo motor drives

● Static converters for DC motor

drives

● Battery supplied applications

● Uninterruptible Power Supplies

(UPS)

● Switched Mode Power Supplies

(SMPS)

● Power supplies for welding

T A

T S

R S

Ambient operating temperature

Ambient storage temperature

Secondary coil resistance

Mass

Standards

@ T A = 70°C

@ T A = 85°C

- 10 .. + 85

- 40 .. + 90

110

EN 50178: 1997

°C

applications.

Application domain

● Industrial.

Notes :

3 mn/hour @ V C = ± 15 V, R M = 5 ?

The result of the coercive force (Hc) of the magnetic circuit

With a di/dt of 100 A/μs.

Page 1/3

110126/9

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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