LT505-T中文资料

Current Transducer LT 505-T

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).

IPN

=500 A

Electrical data

IPNIPR M

Primary nominal r.m.s. currentPrimary current, measuring rangeMeasuring resistance @

with ± 15 Vwith ± 24 V

ISNK NVCICVdVb

@ ±500@ ±800@ ±500@ ± 1200

A maxA maxA maxA max

500

0 .. ± 1200

TA = 70°CTA = 85°CRM minRM maxRM minRM max

0000

651514522

001515

601214018

AA

Features

Closed loop (compensated) current

transducer using the Hall effect Insulated plastic case recognizedaccording to UL 94-V0.

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. currentConversion ratio

Supply voltage (± 5 %)Current consumption

R.m.s. voltage for AC isolation test, 50 Hz, 1 mnR.m.s. rated voltage 1),safe separation

basic isolation100mA1 : 5000± 15 .. 24V30 (@ ± 24 V) + ISmA6kV1750V3500V

Accuracy - Dynamic performance data

X G

ε

L

Overall accuracy @ IPN , TA = 25°C

Linearity

Offset current @ IP = 0, TA = 25°CThermal drift of IO- 10°C .. + 85°CResponse time 2) @ 90 % of IP maxdi/dt accurately followed

Frequency bandwidth (- 1 dB)

± 0.6< 0.1Typ

Max± 0.4± 0.5

%%mAmAµsA/µskHz

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 weldingapplications.

IOIOTtr

di/dtf

± 0.3

< 1> 50

DC .. 150

General data

TATSR Sm

Ambient operating temperatureAmbient storage temperatureSecondary coil resistance @Mass

Standards 3)

- 10 .. + 85- 25 .. + 1006569850

EN 50178

°C°C g

TA = 70°C TA = 85°C

Notes :

1)

2)3)

Pollution class 2. With a non insulated primary bar which fills thethrough-hole

With a di/dt of 100 A/µs

A list of corresponding tests is available

980716/2

LEM

Tope Co., Ltd. Tel: (02) 8228-0658 Fax: (02) 8228-0659 e-mail: tope@