Datasheet > LA25-NP_06

LA25-NP_06

更新时间： 2024-09-16 03:50:15

品牌	Logo	应用领域
莱姆 - LEM		传感器
页数	文件大小	规格书
2页	111K
描述
Current Transducer

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中文翻译

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LA25-NP_06 数据手册

Current Transducer LA 25-NP

I_PN= 5-6-8-12-25 A

For the electronic measurement of currents : DC, AC, pulsed,

mixed, with a galvanic isolation between the primary circuit

(high power) and the secondary circuit (electronic circuit).

16080

Electrical data

I_PN

I_P

R_M

Primary nominal r.m.s. current

Primary current, measuring range

Measuring resistance @

0 .. ± 36

T_A= 70°C

R_{M min}R_MmaxR_{M min}R_Mmax

Features

T_A= 85°C

· Closed loop (compensated) multi-

range current transducer using the

Hall effect

· Insulated plastic case recognized

according to UL 94-V0.

with ± 15 V

@ ± 25 At _max

@ ± 36 At _max

100 320 100 315

100 190 100 185

I_SN

K_N

V_C

I_C

V_d

V_b

Secondary nominal r.m.s. current

Conversion ratio

Supply voltage (± 5 %)

1-2-3-4-5 : 1000

± 15

10 + I_S

2.5

600

1700

Advantages

Current consumption

· Excellent accuracy

· Very good linearity

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

R.m.s. rated voltage ¹⁾, safe separation

basic isolation

· Low temperature drift

· Optimized response time

· Wide frequency bandwidth

· No insertion losses

· High immunity to external

interference

Accuracy - Dynamic performance data

Typical accuracy @ I_PN, T_A= 25°C

Linearity error

± 0.5

< 0.2

· Current overload capability.

Typ Max

± 0.05 ± 0.15 mA

I_O

I_OM

I_OT

Offset current²⁾@ I_P= 0, T_A= 25°C

Residual current ³⁾@ I_P= 0, after an overload of 3 x I_PN± 0.05 ± 0.15 mA

Thermal drift of I_O

Applications

0°C .. + 25°C

+ 25°C .. + 70°C

- 25°C .. + 85°C

- 40°C .. + 85°C

± 0.06 ± 0.25 mA

± 0.10 ± 0.35 mA

· 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 welding

applications.

± 0.5

± 1.2

t_r

Response time ⁴⁾@ 90 % of I_PN

< 1

> 50

DC .. 150

µs

A/µs

kHz

di/dt di/dt accurately followed

Frequency bandwidth (- 1 dB)

General data

T_A

T_S

R_P

R_S

Ambient operating temperature

Ambient storage temperature

Primary resistance per turn

Secondary coil resistance

- 40 .. + 85

- 45 .. + 90

< 1.25

110

°C

@ T_A= 25°C

@ T_A= 70°C

@ T_A= 85°C

115

R_IS

Isolation resistance @ 500 V, T_A= 25°C

Mass

> 1500

Standards

EN 50178 : 1997

Notes : Pollution class 2

Measurement carried out after 15 mn functioning

The result of the coercive field of the magnetic circuit

With a di/dt of 100 A/µs.

060327/13

Page 1/2

LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.

LEM

www.lem.com

中文翻译

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