CT100-S_06中文资料

Current Transducer CT 100-S

For very accurate measurements of currents : DC, AC, pulsed...,with a galvanic isolation between the primary circuit (high power)and the secondary circuit (electronic circuit).

Electrical data

I P N Primary nominal r.m.s. current 100

A I P

Primary current, measuring range 0 .. ± 150A V OUT Analog output voltage 5

V K N Conversion ratio 100 A / 5 V R L Load resistance

> 500?C L Capacitance loading

≤ 5

nF t C Output short-circuit duration 1)∞

s V C Supply voltage (± 5 %)± 15

V I C Current consumption

90 + V OUT / R L mA V d

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

6

kV

Accuracy - Dynamic performance data

X G Overall accuracy @ I PN - 25°C .. + 70°C ± 0.15%Typ

Max V O Offset voltage @ I P = 0

T A = 25°C ± 0.4mV - 25°C .. + 70°C

± 0.6

mV t r

Response time 2) @ 90 % de I PN 400ns di/dt di/dt accurately followed

60

A/µs f

Frequency bandwidth (- 3 dB) @ 10 % of I PN

DC .. 250

kHz

General data

T A Ambient operating temperature - 25 .. + 70°C T S Ambient storage temperature - 40 .. + 85°C m

Mass

670g Standards

EN 50178 : 1997

Notes :

1)

If the short-circuit has a duration more than 1 s, the primary current of the supply voltage must be interrupted for a short time to restore the transducer to proper working order. The internal protection is done by PTC resistors

2)

With a di/dt of 60 A/µs.

Features

?Closed loop (compensated) current

transducer

?Insulated plastic case recognized according to UL 94-V0?Patent pending.

Advanced features

?f

=

250 kHz

?X

G =

± 0.15 % (- 25°C .. + 70°C).

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

=

100 A

060808/5

LEM

Provisional

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Remarks

?V OUT is positive when I P flows in the direction of the arrow.?This transducer induces into the primary circuit a square

wave of 3.5 mV amplitude (frequency ≈ 220 Hz). This voltage can induce an AC current in the primary if the primary impedance is low.

?This is a standard model. For different versions (supply voltages, turns ratios, unidirectional measurements...),please contact us.

Mechanical characteristics

?General tolerance ± 0.3 mm

?Fastening

2 x M5 screws ?Primary through-hole ? 15 mm

?

Connection of secondary M5 threaded studs Fastening torque

2.2 Nm or 1.62 Lb - Ft

Dimensions CT 100-S (in mm. 1 mm = 0.0394 inch)

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

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