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Voltage Transducer LV 100-900
For the electronic measurement of voltages : DC, AC, pulsed..., with a galvanic isolation between the primary circuit (high voltage) and the secondary circuit (electronic circuit).
VPN =
900 V
Electrical data
VPN VP IPN RM Primary nominal r.m.s. voltage Primary voltage, measuring range Primary nominal r.m.s. current Measuring resistance with 15 V ISN KN VC IC Vd @ 900 V max @ 1350 V max 900 V 0 .. 1350 V 11.11 mA R M min R M max 0 0 170 90
Features
*Closed loop (compensated) voltage
transducer using the Hall effect
*Insulated plastic case recognized
according to UL 94-V0
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
50 mA 900 V / 50 mA 15 V 10 + IS mA 6 kV
*Primary resistor R 1 incorporated into
the housing.
Advantages
*Excellent accuracy *Very good linearity *Low thermal drift *High immunity to external
interference.
Accuracy - Dynamic performance data
XG
L
Overall Accuracy @ VPN , TA = 25C Linearity Offset current @ IP = 0, TA = 25C Thermal drift of IO Response time @ 90 % of VP max
0.7 < 0.1 Typ Max 0.2 0.3
% % mA mA s
Applications
*AC variable speed drives and servo
motor drives
IO IOT tr
0C .. + 70C
0.2 110
*Static converters for DC motor drives *Uninterruptible Power Supplies
(UPS)
General data
TA TS N P R1 RS m Ambient operating temperature Ambient storage temperature Turns ratio Total primary power loss Primary resistance @ TA = 25C Secondary coil resistance @ TA = 70C Mass Standards 1) 0 .. + 70 - 25 .. + 85 9000 : 2000 10 81 60 850 EN 50178 C C W k g
*Power supplies for welding
applications.
Note :
1)
A list of corresponding tests is available
981105/2
LEM Components
w w w .lem.com
Dimensions LV 100-900
Front view
(in mm. 1 mm = 0.0394 inch)
Left view
Secondary terminals
Terminal + : supply voltage + 15 V Terminal M : measure Terminal - : supply voltage - 15 V Terminal : ground or earth
Connection
Top view Mechanical characteristics
*General tolerance *Fastening *Connection of primary *Connection of secondary *Connection to the ground *Fastening torque
0.3 mm 2 holes 6.5 mm M5 threaded studs Faston 6.3 x 0.8 mm M5 threaded stud 2.2 Nm or 1.62 Lb. -Ft.
Remarks
*IS is positive when VP is applied on terminal +HT. *The primary circuit of the transducer must be linked to the
connections where the voltage has to be measured.
*This is a standard model. For different versions (supply
voltages, turns ratios, unidirectional measurements...), please contact us.
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.

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