High Accuracy Current Sensor Instrument Transformer for Energy Meter

We have a mature process and modern management model, committed to the development of RM4 High Frequency Switching Transformer, High Frequency Output Transformers, Short Circuit Protection Current Transformer, and manufacture products that meet the needs of target customers. We aim to build a competitive company and carry out in-depth technical exchanges and strategic cooperation with various enterprises. We hope that we will establish a good brand image with our quality and characteristics, thereby laying a solid foundation for the development of the group company. Welcome your enquiry, greatest service is going to be provided with full heart. We will continue to adhere to the principle of 'honest management' and implement the strategy of focusing on enterprise management internally and expanding international market externally.

Introduciton

The electronic current transformer for measurement is used to convert the current of the corresponding circuit to the electronic current transformer of the measuring instrument, the integral meter and the like when the power system is in normal operation.

Description

• 50/60 Hz,Single Phase,AC Current Sensor

• Dynamic Range from 0.1 to 20Amps

• Meets IEC62053-21 class 1

• Meets IEC 60044-1 class 0.1 Phase error < 5'

• Very low temperature coefficient

• Meets UL class B (130℃) thermal insulation system

• Meets UL 94V-0

• AC isolation resistance: 4KV for 60s

Application

• Digital electricity meter

• Recording

• Power monitoring

• Energy management

• Alternative energy monitoring

ELECTRIC SPECIFICAITON AT 25℃
Model number	Turns Ration	Ipri4	Iout5	Iprimax6	Ioutmax7	RS	Accuracy Class3	RL8	Weight	Frequency range
		Amps	mA	Amps	mA	Ohms		Ohms	(g)	(Hz)
LO-DM0002	1:2000	5	2.5	20	10		0.1	100		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.

3.Accuracy class per IEC60044-1Table 11.

4.Ipri=Rated primary current.

5.Iout=Rated secondary current.

6.Iprimax=Sensed max primary current.

7.Loutmax=Sensed max secondary current.

8.R_L=Terminating resistance. Varying terminating resistance increases or decreases output Voltage /Ampers according to following

equation R_L=Vout*Nsec/Ipri

ABSOLUTE MAXIMUM RATINGS
Operating free air temperature range	-40℃ to 85℃
Storage temperature range	-40℃ to 100℃
LEADS  INFORMATION
UL1007 22Awg wire black & red	75mm±5.0mm
Terminal block	2.5mm terminal

Mechanical Specifications

Advantages

Good insulation performance and beautiful appearance. It has the characteristics of high sensitivity, good linearity, reliable operation and convenient installation. Its performance is better than the general zero-sequence current transformer, which is more widely used. It not only adapts to electromagnetic relay protection, but also adapts to electronic and microcomputer protection devices. Users can effectively ground or neutral according to the operation mode of the system. For the difference of non-effective grounding, select the appropriate zero-sequence current transformer.

QC

Liou has a strict quality control system. From materials to finished products. We conducted an inductive test on each core. Then choose the right core to make the transformer. Then we conducted DC, current, and high voltage tests. After approval, we check the appearance and parameters of the inspection and package the goods.

We actively and extensively collect customer needs and promote technological innovation to create high-quality and satisfactory High Accuracy Current Sensor Instrument Transformer for Energy Meter. We cleave to the operating principles of quality and abiding by contracts, and the corporate spirit of unity and dedication, pioneering and innovative, and service-oriented. We sincerely welcome customers from all over the world to order by phone or e-mail.

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