Current Transformer for Energy Meter
Our transformers are used in current measurement relays with moderate accuracy requirements and power and power monitoring devices with higher accuracy levels and as little phase error as possible.
- Product Introduction
Wuxi Liou Electronics Co.,Ltd is one of the leading manufacturers and suppliers of current transformer for energy meter in China. Our factory offer high quality customized products made in China with low price. Welcome to contact us for quotation.
Description
¨ 50/60 Hz，Single Phase，AC Current Sensor
¨ Dynamic Range from 0.5 to 120Amps
¨ Accuracy class 0.05 Phase error < 3'
¨ Immune to external AC magnetic field. Immune to DC current & DC magnetic field
¨ Very low temperature coefficient
¨ Meets UL class B (130℃) thermal insulation system
¨ Meets UL 94V-0
¨ AC isolation resistance: 4KV for 60s
Application
• Electricity meter
• Recording
• Power monitoring
• Energy management
• Alternative energy monitoring
ELECTRIC SPECIFICAITON AT 25℃ | ||||||||||
Model number | Turns Ration | Ipri4 | Iout5 | Iprimax6 | Ioutmax7 | RS | Accuracy Class | RL8 | Weight | Frequency range |
Amps | mA | Amps | mA | Ohms | Ohms | (g) | (Hz) | |||
LO-EM0002 | 1:2000 | 5 | 2.5 | 120 | 60 | 0.05 | ≤40 | 40 | 50-60 | |
Note:
1.Output voltage is proportional to the derivative(di/dt)of the input current based on the Rogowski Coil principle.
2.All current and voltages assumed to be sinusoidal waveforms at Fr, the constant rated frequency in Hz, measured as RMS value.
4.Ipri=Rated primary current.
5.Iout=Rated secondary current.
6.Iprimax=Sensed max primary current.
7.Loutmax=Sensed max secondary current.
8.RL=Terminating resistance. Varying terminating resistance increases or decreases output Voltage /Ampers according to following
equation RL=Vout*Nsec/Ipri
Schematic Diagram:
Dimensions:
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