LV200-AW datasheet(1/2 Pages) LEM

Part #	LV200-AW

Description	Voltage Transducer LV 200-AW/2

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Manufacturer	LEM [LEM]

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Voltage Transducer LV 200-AW/2

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

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

and the secondary circuit (electronic circuit).

Electrical data

I

PN

Primary nominal r.m.s. current

20

mA

I

P

Primary current, measuring range

0 .. ± 40

mA

R

M

Measuring resistance

R

M min

R

M max

with ± 15 V

@ ± 20 mA

max

0

90

Ω

@ ± 40 mA

max

0

25

Ω

with ± 24 V

@ ± 20 mA

max

60

170

Ω

@ ± 40 mA

max

60

65

Ω

I

SN

Secondary nominal r.m.s. current

100

mA

I

S

Secondary current @ I

P max

200

mA

K

N

Conversion ratio

10000 : 2000

V

C

Supply voltage (± 10 %)

± 15 .. 24

V

I

C

Current consumption

30(@± 24 V)+ I

S

mA

V

d

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

6 1)

kV

1 2)

kV

V

e

R.m.s. voltage for partial discharges extinction @ 10 pC 2.5

kV

Accuracy - Dynamic performance data

X

G

Overall Accuracy @ I

PN , TA = 25°C

± 0.5

%

ε

L

Linearity

< 0.1

%

Typ

Max

I

O

Offset current @ I

P = 0, TA = 25°C

± 0.3

mA

I

OT

Thermal drift of I

O

- 25°C .. + 70°C

± 0.4

± 0.7

mA

t

r

Response time 3) @ 90 % of V

P max

20 .. 100

µs

General data

T

A

Ambient operating temperature

- 25 .. + 70

°C

T

S

Ambient storage temperature

- 40 .. + 85

°C

R

P

Primary coil resistance @ T

A = 25°C

420

Ω

R

S

Secondary coil resistance @ T

A = 70°C

40

Ω

m

Mass

1.6

kg

Standards 4)

EN 50178

Notes : 1) Between primary and secondary + shield

2) Between secondary and shield

3) R

1 = 50 kΩ (L/R constant, produced by the resistance and inductance

of the primary circuit)

4) A list of corresponding tests is available

Features

•Closed loop (compensated) voltage

transducer using the Hall effect

•Insulated plastic case recognized

according to UL 94-V0

•Accessible electronic circuit

•Shield between primary and

secondary circuit.

Principle of use

•For voltage measurements, a current

proportional to the measured voltage

must be passed through an external

resistor R

1 which is selected by the

user and installed in series with the

primary circuit of the transducer.

Advantages

•Excellent accuracy

•Very good linearity

•Low thermal drift

•High immunity to external

interference

Applications

•AC variable speed drives and servo

motor drives

•Static converters for DC motor drives

•Battery supplied applications

•Uninterruptible Power Supplies

(UPS)

•Power supplies for welding

applications.

981103/7

I

PN

= 20 mA

V

PN = 100 .. 2500 V

LEM Components

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