CV3-500 Datasheet, PDF (1/2 Pages) LEM – Voltage Transducer

Voltage Transducer CV 3-500
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).
V_PN = 350 V
Electrical data
V_PN Primary nominal r.m.s. voltage
350
V
V_P Primary voltage, measuring range
0 .. ± 500
V
V_S
Secondary analog voltage @ V_{P max}
10
V
K_N Conversion ratio
500 V / 10 V
R_L Load resistance
≥1
kΩ
C_L Capacitive loading
≤5
nF
V_C Supply voltage (± 5 %)
± 15
V
I_C
Current consumption
32 + V_S / R _L m A
V_d
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
6
kV
V_e
R.m.s. voltage for partial discharge extinction @ 10 pC 2
kV
Accuracy - Dynamic performance data
X _G Overall accuracy @ V_{P max}
V_O Offset voltage @ V_P = 0
T_A = 25°C
- 40°C .. + 85°C
T_A = 25°C
- 40°C .. + 85°C
t_r
Response time ¹⁾ @ 90 % of V_PN
dv/dt dv/dt accurately followed
f
Frequency bandwidth (- 1 dB) @ V_PN
General data
Typ Max
± 0.2 %
± 0.6 %
± 5.0 m V
± 13.0 m V
0.3
500
DC .. 300
µs
V/µ s
kHz
T_A
Ambient operating temperature
T_S
Ambient storage temperature
P
Total primary power loss
R₁ Primary resistance
m Mass
Standards ²⁾
- 40 .. + 85
°C
- 45 .. + 90
°C
3.1
W
40
kΩ
560
g
EN 50155
Features
• Closed loop (compensated) voltage
transducer
• Insulated plastic case recognized
according to UL 94-V0
• Patent pending.
Advantages
• Excellent accuracy
• Very good linearity
• Low thermal drift
• Low response time
• High bandwidth
• High immunity to external
interference
• Low disturbance in common mode.
Applications
• AC variable speed drives and servo
motor drives
• Static converters for DC motor drives
• Uninterruptible Power Supplies
(UPS)
• Power supplies for welding
applications.
Notes : ¹⁾ With a dv/dt of 500 V/µs
2) _{A list of corresponding tests is available.}
LEM Components
011107/8
www.lem.com