NNC-920A Datasheet, PDF (1/2 Pages) LEM – Current Transducers NNC-920~960A

Current Transducers NNC-920 .. 960A
For the electronic measurement of currents : DC, AC, pulsed, mixed,
with a galvanic isolation between the primary circuit
(high power) and the secondary circuit (electronic circuit).
I = 2000 .. 6000 A
PN
Electrical data
Primary nominal
r.m.s. current
I_PN (A)
Primary current
measuring range
I_P (A)
2000
± 2200
3000
4000
5000
6000
± 3300
± 4400
± 5500
± 6600
Type
NNC - 920A
NNC - 930A
NNC - 940A
NNC - 950A
NNC - 960A
V_C
Supply voltage (± 5 %)
± 15
V
I_C
Current consumption
< ± 25
mA
V_d
R.m.s. voltage for AC isolation test, 50/60Hz, 1 mn 2.5
kV
V_b
R.m.s. rated voltage, safe separation
500
V
R _IS
V_OUT
R_OUT
R_L
Isolation resistance @ 500 VDC
Output voltage @ ± I_PN, R_L = 10 kΩ, T_A = 25°C
Output internal resistance
Load resistance
> 1000 MΩ
± 10 V
100
Ω
10
kΩ
Accuracy - Dynamic performance data
εXG
L
V_{O E}
V_OH
ε ^VOT
TC _G
t_r
Accuracy @ T_A = 25°C
Linearity (0 .. ± I_PN)
Electrical offset voltage, T_A = 25°C
Hysteresis offset voltage @ I_P = 0;
after an excursion of 1 x I_PN
Thermal drift of V_OE
Thermal drift of the gain (% of reading)
Response time @ 90% of I_P
< ± 1 % of I_PN
< ± 1 % of I_PN
< ± 50
mV
< ± 50
<±1
< ± 0.1
< 25
mV
mV/°C
%/°C
µs
Features
• Hall effect measuring principle
• Galvanic isolation between primary
and secondary circuit
• Isolation voltage 3000 V~
• Low power consumption
Advantages
• Easy mounting
• Space saving
• High immunity to external
interference.
Applications
• AC variable speed drives
• Battery supplied applications
• Uninterruptible Power Supplies
(UPS)
General data
T_A
Ambient operating temperature
T_S
Ambient storage temperature
m
Mass
Notes : Linearity data exclude the electrical offset.
- 10 .. + 60 °C
- 15 .. + 65 °C
1.4
kg
010301/1
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