LF205-S_06 参数 Datasheet PDF下载

Current Transducer LF 205-S

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

with a galvanic isolation between the primary circuit (high power)

and the secondary circuit (electronic circuit).

I

PN

=

200 A

16135

Electrical data

I

PN

I

P

R

M

Primary nominal r.m.s. current

Primary current, measuring range

Measuring resistance @

with ± 12 V

with ± 15 V

I

SN

K

N

V

C

I

C

@ ± 200 A

max

@ ± 420 A

max

@ ± 200 A

max

@ ± 420 A

max

200

0 .. ± 420

T

A

= 70°C

T

A

= 85°C

R

M min

R

M max

R

M min

R

M max

0

0

0

0

71

14

100

28

0

0

23

23

69

12

98

26

A

A

Features

•

Closed loop (compensated) current

transducer using the Hall effect

•

Insulated plastic case recognized

according to UL 94-V0.

Ω

Ω

Ω

Ω

mA

V

mA

Advantages

•

•

•

•

•

•

•

Excellent accuracy

Very good linearity

Low temperature drift

Optimized response time

Wide frequency bandwidth

No insertion losses

High immunity to external

interference

•

Current overload capability.

Secondary nominal r.m.s. current

Conversion ratio

Supply voltage (± 5 %)

Current consumption @ ± 15 V

100

1 : 2000

± 12 .. 15

17 +

I

S

Accuracy - Dynamic performance data

X

G

ε

L

Overall accuracy @

I

PN

,

T

A

= 25°C

Linearity error

Offset current @

I

P

= 0,

T

A

= 25°C

Residual current

1)

@

I

P

= 0, after an overload of 3 x

I

PN

Thermal drift of

I

O

- 40°C .. + 85°C

Reaction time @ 10 % of

I

PN

Response time

2)

@ 90 % of

I

PN

di/dt accurately followed

Frequency bandwidth (- 3 dB)

± 0.5

< 0.1

Max

± 0.2

± 0.1

± 0.12 ± 0.4

< 500

<1

> 100

DC .. 100

Typ

%

%

mA

mA

mA

ns

µs

A/µs

kHz

I

O

I

OM

I

O T

t

ra

t

r

di/dt

f

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

applications.

General data

T

A

T

S

R

S

m

Ambient operating temperature

Ambient storage temperature

Secondary coil resistance @

T

A

= 70°C

@

T

A

= 85°C

Mass

Standards

- 40 .. + 85

°C

- 40 .. + 90

°C

33

Ω

35

Ω

78

g

EN 50178 : 1997

•

Application domain

•

Industry.

Notes :

1)

2)

The result of the coercive field of the magnetic circuit

With a di/dt of 100 A/µs.

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

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