Datasheet > LF305-S

LF305-S

更新时间： 2024-11-22 22:31:23

品牌	Logo	应用领域
莱姆 - LEM		传感器
页数	文件大小	规格书
2页	133K
描述
Current Transducer LF 305-S

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中文翻译

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数据手册

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LF305-S 数据手册

Current Transducer LF 305-S

I_PN= 300 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).

Preliminary

Electrical data

I_PN

I_P

R_M

Primary nominal r.m.s. current

Primary current, measuring range

Measuring resistance

300

0 .. ± 500

R_{M min}

Features

R_Mmax

· Closed loop (compensated) current

transducer using the Hall effect

· Insulated plastic case recognized

according to UL 94-V0.

with ± 12 V

with ± 15 V

with ± 20 V

@ ± 300 A _max

@ ± 500 A _max

@ ± 300 A _max

@ ± 500 A _max

@ ± 300 A _max

@ ± 500 A _max

Advantages

· Excellent accuracy

· Very good linearity

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

150

1 : 2000

± 12 .. 20

16 (@±20V) + I_SmA

· Low temperature drift

· Optimized response time

· Wide frequency bandwidth

· No insertion losses

· High immunity to external

interference

V_d

Accuracy - Dynamic performance data

· Current overload capability.

Overall accuracy @ I_PN, T_A= 25°C

Linearity

± 0.4

< 0.1

e^G

Applications

Typ Max

I_O

I_OM

I_OT

Offset current @ I_P= 0, T_A= 25°C

± 0.20 mA

± 0.08 mA

± 0.1 ± 0.30 mA

· AC variable speed drives and servo

motor drives

· Static converters for DC motor drives

· Battery supplied applications

· Uninterruptible Power Supplies

(UPS)

Residual current¹⁾@ I_P= 0, after an overload of 3 x I_PN

Thermal drift of I_O

- 10°C .. + 70°C

t_ra

t_r

Reaction time @ 10 % of I_PN

Response time ²⁾@ 90 % of I_PN

< 500

< 1

µs

di/dt di/dt accurately followed

> 100

DC .. 100

A/µs

kHz

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 @ T_A= 70°C

Mass

Standards ³⁾

- 10 .. + 70

- 25 .. + 85

EN 50178

°C

Notes : The result of the coercive field of the magnetic circuit

With a di/dt of 100 A/µs

A list of corresponding tests is available

991125/1

LEM Components

www.lem.com

中文翻译

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与LF305-S相关器件

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