Datasheet > LA55P

LA55P

更新时间： 2024-10-31 21:54:43

品牌	Logo	应用领域
莱姆 - LEM		传感器
页数	文件大小	规格书
2页	72K
描述
Current Transducer LA 55-P

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中文翻译

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数据手册

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LA55P 数据手册

Current Transducer LA 55-P

I_PN= 50 A

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).

Electrical data

I_PN

I_P

R_M

Primary nominal r.m.s. current

Primary current, measuring range

Measuring resistance @

0 .. ± 70

T_A= 70°C

R_{M min}R_MmaxR_{M min}R_Mmax

Features

T_A= 85°C

· Closed loop (compensated) current

transducer using the Hall effect

· Printed circuit board mounting

· Insulated plastic case recognized

according to UL 94-V0.

with ± 12 V

with ± 15 V

@ ± 50 A _max

10 100 60 95

10 50

50 160 135 155

50 90 135²⁾135²⁾

@ ± 70 A _max

@ ± 50 A _max

@ ± 70 A _max

60¹⁾60¹⁾

Advantages

I_SN

K_N

V_C

I_C

Secondary nominal r.m.s. current

Conversion ratio

Supply voltage (± 5 %)

Current consumption

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

1 : 1000

± 12 .. 15

10(@±15 V)+I_SmA

2.5

· Excellent accuracy

· Very good linearity

· Low temperature drift

· Optimized response time

· Wide frequency bandwidth

· No insertion losses

· High immunity to external

interference

V_d

Accuracy - Dynamic performance data

Accuracy @ I_PN, T_A= 25°C

@ ± 15 V (± 5 %)

± 0.65

± 0.90

< 0.15

@ ± 12 .. 15 V (± 5 %)

· Current overload capability.

Linearity

Typ

Max

Applications

I_O

I_OM

I_OT

Offset current @ I_P= 0, T_A= 25°C

Residual current ³⁾@ I_P= 0, after an overload of 3 x I_PN

Thermal drift of I_O

± 0.2 mA

± 0.3 mA

· AC variable speed drives and servo

motor drives

· Static converters for DC motor drives

· Battery supplied applications

· Uninterruptible Power Supplies

(UPS)

0°C .. + 70°C

- 25°C .. + 85°C

± 0.1 ± 0.5 mA

± 0.1 ± 0.6 mA

t_ra

t_r

Reaction time @ 10 % of I_{P max}

Response time @ 90 % of I_{P max}

< 500

< 1

> 200

DC .. 200

µs

A/µs

kHz

di/dt di/dt accurately followed

Frequency bandwidth (- 1 dB)

· Switched Mode Power Supplies

(SMPS)

General data

· Power supplies for welding

applications.

T_A

T_S

R_S

Ambient operating temperature

Ambient storage temperature

Secondary coil resistance @

- 25 .. + 85

- 40 .. + 90

°C

T_A= 70°C

T_A= 85°C

Mass

Standards

EN 50178

Notes : Measuring range limited to ± 60 A _max

Measuring range limited to ± 55 A _max

Result of the coercive field of the magnetic circuit

A list of corresponding tests is available

980706/8

LEM Components

www.lem.com

中文翻译

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