Datasheet > LA125P

LA125P

更新时间： 2024-11-03 22:47:19

品牌	Logo	应用领域
莱姆 - LEM		传感器
页数	文件大小	规格书
2页	87K
描述
CURRENT TRANSDUCER LA 125-P

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中文翻译

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数据手册

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LA125P 数据手册

Current Transducer LA 125-P

I_PN= 125 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 @

125

0 .. ± 200

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

@ ± 125 A _max

25 74

25 34

@ ± 200 A _max

@ ± 125 A _max

@ ± 200 A _max

40¹⁾40 ¹⁾

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

125

1 : 1000

± 12 .. 15

16 (@ ±15 V)+I_SmA

· 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 %)

± 0.60

± 0.80

< 0.15

@ ± 12 .. 15 V (± 5 %)

Linearity

· Current overload capability.

Typ

Max

Applications

I_O

I_OM

I_OT

Offset current @ I_P= 0, T_A= 25°C

± 0.40 mA

± 0.50 mA

± 0.15 ± 0.50 mA

± 0.15 ± 0.60 mA

Residual current ²⁾@ I_P= 0, after an overload of 3 x I_PN

· AC variable speed drives and servo

motor drives

Thermal drift of I_O

0°C .. + 70°C

- 25°C .. + 85°C

· Static converters for DC motor drives

· Battery supplied applications

· Uninterruptible Power Supplies

(UPS)

· Switched Mode Power Supplies

(SMPS)

t_ra

t_r

Reaction time @ 10 % of I_{P max}

< 500

< 1

> 200

DC .. 100

µs

A/µs

kHz

Response time ^{3) 4)}@ 90 % of I_{P max}

di/dt di/dt accurately followed ⁴⁾

Frequency bandwidth ⁴⁾(- 1 dB)

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

33.5

°C

T_A= 70°C

T_A= 85°C

Mass

Standards

EN 50178

Notes : Measuring range limited to ± 180 A _max

The result of the coercive field of the magnetic circuit

With a di/dt of 100 A/µs

The primary conductor is best filling the through-hole and/or the return

of the primary conductor is above the top of the transducer

A list of corresponding tests is available

980716/5

LEM Components

www.lem.com

中文翻译

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与LA125P相关器件

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