LV25P LEM, LV25P Datasheet

LV25P

Manufacturer Part Number

LV25P

Description

VOLTAGE TRANSDUCER

Manufacturer

LEM

Datasheet

1.LV25P.pdf (2 pages)

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Voltage Transducer LV 25-P

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).

Notes :

LEM Components

O T

Electrical data

Accuracy - Dynamic performance data

General data

Primary nominal r.m.s. current

Primary current, measuring range

Measuring resistance

Secondary nominal r.m.s. current

Conversion ratio

Supply voltage (± 5 %)

Current consumption

R.m.s. voltage for AC isolation test

Overall Accuracy @ I

Linearity

Offset current @ I

Thermal drift of I

Response time

Ambient operating temperature

Ambient storage temperature

Primary coil resistance @ T

Secondary coil resistance @ T

Mass

Standards

Between primary and secondary

of the primary circuit)

A list of corresponding tests is available

with ± 12 V

with ± 15 V

= 25 k

(L/R constant, produced by the resistance and inductance

@ 90 % of V

= 0, T

, T

= 25°C

@ ± 10 mA

@ ± 14 mA

@ ± 10 mA

@ ± 14 mA

= 25°C

= 70°C

P max

= 70°C

@ ± 15 V (± 5 %)

+ 25°C .. + 70°C

, 50 Hz, 1 mn

@ ± 12 .. 15 V

0°C .. + 25°C

max

100

± 0.06 ± 0.25

± 0.10 ± 0.35

0 .. ± 14

2500 : 1000

± 12 .. 15

2.5

± 0.9

± 0.8

< 0.2

0 .. + 70

- 25 .. + 85

250

110

EN 50178

Typ

M min

(@ ± 15 V) +

± 0.15

Max

190

100

350

190

M max

µs

°C

Features

Principle of use

Advantages

Applications

Closed loop (compensated) voltage

transducer using the Hall effect

Insulated plastic case recognized

according to UL 94-V0.

For voltage measurements, a current

proportional to the measured voltage

must be passed through an external

resistor R

user and installed in series with the

primary circuit of the transducer.

Excellent accuracy

Very good linearity

Low thermal drift

Low response time

High bandwidth

High immunity to external

interference

Low disturbance in common mode.

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.

= 10 mA

= 10 .. 500 V

which is selected by the

w w w .lem.com

981125/14

Related parts for LV25P

LV25P Summary of contents

Page 1

... High bandwidth mA High immunity to external µs interference Low disturbance in common mode. Applications °C °C AC variable speed drives and servo motor drives Static converters for DC motor drives g Battery supplied applications Uninterruptible Power Supplies (UPS) Power supplies for welding applications. 981125/ .lem.com ...

Page 2

... Operating range (recommended) : taking into account the resistance of the primary windings (which must remain low compared keep thermal deviation as low as possible) and the isolation, this transducer is suitable for measuring nominal voltages from 10 to 500 V. LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. Right view Secondary terminals Terminal + : supply voltage + 12 ...

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