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| 型号： | RT 500 |
| 厂商： | LEM USA Inc |
| 文件页数： | 1/4页 |
| 文件大小： | 0K |
| 描述： | SENSOR CURRENT 500A MOD |
| 标准包装： | 1 |
| 系列： | RT |
| 电流 - 感应： | 500A |
| 精确度： | ±0.65% |
| 传感器类型： | 电流传感器 |
| 电极标记： | 双向 |
| 工作温度： | -10°C ~ 65°C |
| 封装/外壳： | 探头组件 |
| 包装： | 散装 |
| 其它名称： | 398-1114 |
RT 500
Flexible split-core Rogowski coil for the electronic measurement
of AC waveform currents, with galvanic separation between the
primary circuit (power) and the secondary circuit (measurement).
The patented Perfect Loop Technology definitely solves the problem
of the Rogowski coil opening by introducing a specific magnetic
device. This dramatically reduces both the error due to the position of
the measured conductor within the sensor, and the error due to the
proximity of external conductors.
Features
● Split core type
d I P
Output voltage (instantaneous) 2) V out = M × V
I PN
M
V out
V out
L S
R S
Electrical data
Primary nominal rms current 500 A
Mutual inductance transfer ratio 1) (± 5 %) 0.064 μH
d t
Output voltage (sinusoidal wave) 2) V out = 2 × π × M × f × I P AC V
Example: @ 50 Hz, 500 A V out = 2 × π × 64 × 10 -9 × 50 × 500 = 10.05 mV
Coil inductance (± 5 %) 125 μH
Coil resistance T A = 20 °C typical 40 ?
High cut-off frequency 2) 700 kHz
● ? 70 mm sensing aperture for
non-contact measurement
● 1.5 m output cable
● Insulating plastic case recognized
according to UL 94-V0.
Advantages
● Thin, lightweight and flexible
● Easy installation suitable even for
the most confined spaces
● Very low positioning error.
Accuracy - Dynamic performance data
ε L Linearity error none
TCM Temperature coefficient of M 30 ppm/K
ε P Positioning error 3) max 0.65 %
General data
T A Ambient operating temperature (90 % RH ) - 10 .. + 65 °C
T S Ambient storage temperature - 25 .. + 70 °C
m Mass 85 g
IPxx Protection degree IP 2X
Standards Safety IEC 61010-1: 2001 2nd edition
IEC 61010-2-032: 2002
IEC 61010-031: 2002 + Amd 1: 2008
Applications
● Power meters
Current measurement for active
Power calculation.
● Energy sub-meters
For energy efficiency monitoring,
consumption analysis and costs
allocation.
● Power quality monitoring
● Condition monitoring
(e.g. Motor loads such as
conveyers, pumps or HVAC).
● Distributed measurement
systems.
Notes :
1)
2)
3)
LEM provides uncalibrated coils with up to 5 % manufacturing tolerance.
Calibration must be performed within the final application.
Open circuit condition (no load).
Considering a primary conductor of at least ? 15 mm perpendicular to
Application domain
● Energy Solutions.
the RT loop.
N° 97.F9.50.000.0
Page 1/4
11December2013/version 2
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
www.lem.com
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