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Current Transducer LAH 50-P

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

= 50 A

Electrical data

I

PN

I

P

R

M

Primary nominal r.m.s. current

Primary current, measuring range

Measuring resistance @

with 鹵 12 V

with 鹵 15 V

I

SN

K

N

V

C

I

C

V

d

V

e

V

w

X

@

1)

50

0 .. 110

T

A

= 70擄C

T

A

= 85擄C

R

M min

R

M max

R

M min

R

M max

0

221

115

335

195

0

214

108

327

188

A

Features

鈥?/div>

Closed loop (compensated) current

transducer using the Hall effect

鈥?/div>

Printed circuit board mounting

鈥?/div>

Insulated plastic case recognized

according to UL 94-V0.

I

PN

[鹵 A

DC

]

I

PN

[A

RMS

]

2)

I

PN

[鹵 A

DC

]

I

PN

[A

RMS

]

2)

鈩?/div>

mA

V

mA

kV

Secondary nominal r.m.s. current

25

Conversion ratio

1 : 2000

Supply voltage (鹵 5 %)

鹵 12 .. 15

Current consumption

10

(@ 鹵 15V) +

I

S

R.m.s. voltage for AC isolation test, 50/60 Hz, 1 mn

5

R.m.s. voltage for partial discharge extinction @ 10 pC > 2

Impulse withstand voltage 1.2/50 碌s

> 12

Advantages

鈥?/div>

Excellent accuracy

Very good linearity

Low temperature drift

Optimized response time

Wide frequency bandwidth

No insertion losses

High immunity to external

interference

鈥?/div>

Current overload capability.

Accuracy - Dynamic performance data

蔚

L

Accuracy

3)

@

I

PN,

T

A

= 25擄C

Linearity

Offset current @

T

A

= 25擄C

Residual current @

I

P

= 0, after an overload of 5 x

I

PN

Thermal drift of

I

O

0擄C .. + 70擄C

- 25擄C .. + 85擄C

Reaction time @ 10 % of

I

PN

Response time

4)

@ 90 % of

I

PN

di/dt accurately followed

Frequency bandwidth (- 1 dB)

鹵 0.25

< 0.15

Max

鹵 0.15

鹵 0.10 鹵 0.15

鹵 0.10 鹵 0.30

鹵 0.10 鹵 0.40

< 200

< 500

> 200

DC .. 200

Typ

%

mA

ns

A/碌s

kHz

I

O

I

OM

I

OT

t

r a

t

r

di/dt

f

Applications

鈥?/div>

AC variable speed drives and servo

鈥?/div>

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

Ambient operating temperature

Ambient storage temperature

Secondary coil resistance

Insulating material group

Mass

Standards

5)

1)

2)

3)

4)

5)

@

T

A

= 70擄C

@

T

A

= 85擄C

m

- 25 .. + 85

- 40 .. + 90

135

142

I

22

EN 50178

擄C

鈩?/div>

g

Notes :

For 10 s, with

R

M

鈮?/div>

71

鈩?/div>

(V

C

= 鹵 15 V)

50 Hz Sinusoidal

Without

I

O

&

I

OM

With a di/dt of 100 A/碌s

A list of corresponding tests is available.

010822/5

LEM Components

w w w .lem.com

型號(hào)

版本

描述

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