090616/4

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

www.lem.com

Page 1/3

I

Features

Closed loop (compensated)

●

current transducer using the Hall

effect

Mounted on printed circuit board

●

Insulated plastic case recognized

●

according to UL 94-V0.

Special features

I

●

PM

= 0 .. ± 100 A

K

●

N

= 1 : 2000

V

●

d

= 3.6 kV

T

●

A

= - 40°C .. + 85°C

Potted.

●

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.

●

Applications

Single or three phases inverter

●

Propulsion and braking chopper

●

Propulsion converter

●

Auxiliart converter

●

Battery charger.

●

Application domain

Traction.

●

Current Transducer LA 55-TP/SP27

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

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

the secondary circuit (electronic circuit).

Electrical data

I

PN

Primary nominal current rms

50

A

I

PM

Primary current, measuring range

0 .. ± 100

A

R

M

Measuring resistance

R

M min

R

M max

with ± 12 V

@ ± 50 A

max

0

210

Ω

@ ± 100 A

max

0

30

Ω

with ± 15 V

@ ± 50 A

max

30

320

Ω

@ ± 100 A

max

30

90

Ω

I

SN

Secondary nominal current rms

25

mA

K

N

Conversion ratio

1 : 2000

V

C

Supply voltage (± 5 %)

± 12 .. 15

V

I

C

Current consumption

X

Accuracy @

I

@ ± 15 V (± 5 %)

± 0.65

%

Accuracy - Dynamic performance data

@ ± 12 .. 15 V (± 5 %)

± 0.90

%

ε

L

Linearity error

< 0.15

%

Typ

Max

I

O

Offset current @

I

± 0.1

mA

I

OM

I

after an overload of 3 x

I

PN

± 0.2

mA

I

OT

Temperature variation of

I

O

- 25°C .. + 85°C

± 0.1 ± 0.3

mA

- 40°C .. - 25°C

± 0.2 ± 0.5

mA

t

ra

Reaction time to 10 % of

I

< 500

ns

t

r

I

< 1

µs

di/dt di/dt accurately followed

> 200

A/µs

BW

Frequency bandwidth (- 1 dB)

DC .. 200

kHz

T

A

Ambient operating temperature

- 40 .. + 85

°C

General data

T

S

Ambient storage temperature

- 50 .. + 90

°C

R

S

Secondary coil resistance @

T

140

Ω

m

Mass

35

g

Standards

EN 50155: 1995

2)

With a di/dt of 100 A/µs.

16086