LT505-S datasheet(1/2 Pages) LEM

部件名	LT505-S

功能描述	Current Transducer LT 505-S

PDF	2 Pages

Scroll/Zoom	100%

制造商	LEM [LEM]

网页	http://www.lem.co.jp/HQ/en

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Current Transducer LT 505-S

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

Primary nominal r.m.s. current

500

A

I

P

Primary current, measuring range

0 .. ± 1200

A

R

M

Measuring resistance @

T

A = 70°C

T

A = 85°C

R

M min RM max

R

M min RM max

with ± 15 V

@ ± 500 A

max

0

65

0

60

Ω

@ ± 800 A

max

0

15

0

12

Ω

with ± 24 V

@ ± 500 A

max

0

145

15

140

Ω

@ ± 1200 A

max

0

22

15

18

Ω

I

SN

Secondary nominal r.m.s. current

100

mA

K

N

Conversion ratio

1 : 5000

V

C

Supply voltage (± 5 %)

± 15 .. 24

V

I

C

Current consumption

30 (@ ± 24 V)+ I

S

mA

V

d

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

6

kV

V

b

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

1750

V

basic isolation

3500

V

Accuracy - Dynamic performance data

X

G

Overall accuracy @ I

PN , TA = 25°C

± 0.6

%

ε

L

Linearity

< 0.1

%

Typ

Max

I

O

Offset current @ I

P = 0, TA = 25°C

± 0.4

mA

I

OT

Thermal drift of I

O

- 10°C .. + 85°C

± 0.3

± 0.5

mA

t

r

Response time 2) @ 90 % of I

P max

< 1

µs

di/dt

di/dt accurately followed

> 50

A/µs

f

Frequency bandwidth (- 1 dB)

DC .. 150

kHz

General data

T

A

Ambient operating temperature

- 10 .. + 85

°C

T

S

Ambient storage temperature

- 25 .. + 100

°C

R

S

Secondary coil resistance @

T

A = 70°C

65

Ω

T

A = 85°C

69

Ω

m

Mass

400

g

Standards 3)

EN 50178

Notes : 1) Pollution class 2. With a non insulated primary bar which fills the

through-hole

2) With a di/dt of 100 A/µs

3) A list of corresponding tests is available

Features

•Closed loop (compensated) current

transducer using the Hall effect

•Insulated plastic case recognized

according 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.

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 welding

applications.

I

PN

=

500 A

980708/6

LEM Components

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