Audited Supplier
RFSZ
Rogowski
TPR UL97-V0
Measuring Instrument, Laboratory Instrument
IP67
CE
Customized
7400vrms/1min
1000vrms Catiii/600vrms Cat IV
Liycy Shielded Twisted-Pair Cable 2 X 0.25mm²
2m
10Hz~20kHz
85mv/Ka@50Hz 102mv/Ka@60Hz
Light Weight and Flexible Installation
293mm-943mm
80mm-300mm
≤500ka
CE, RoHS
0.5% 25ºC
±0.2% (10%-100% of Rated Value)
±1%
124~176g(±5)G
YHDC
Carton
RFSZ
China
8504311000
Product Description
Introduction to Rogowski coil
The Rogowski coil also called a differential current sensor, is an "empty core" toroidal coil arranged around a conductor, so that the alternating magnetic field generated by the current induces a voltage in the coil. The coil is actually a current transformer coupled to the conductor under test, and the voltage output directly from the coil is proportional to the rate of change of the current.
For example:@50Hz/1kA Vout=85mV, @60Hz/1kA Vout=85*60/50=102mV.
If you want to obtain the current waveform or frequency independent current value, you need to add an integral circuit to achieve 90° phase shift compensation and frequency equalization.
RF series is a current sensor based on the principle of Rogowski coil. Its light weight and low price are available in different sizes, can also be ordered according to the customer's design requirements. No magnetic saturation and with a shielding layer, it resists the inf--luence of external magnetic fields, so stable measurements can be achieved from low currents to hundreds of kA. Provides accurate measurements in smart meters, industrial motor control and power monitoring applications.
Systems using an ADC chip (ADS131M04) that supports the Rogowski coil principle or a power metering chip (ADE7753) are more advantageous.
Systems using an ADC chip (ADS131M04) that supports the Rogowski coil principle or a power metering chip (ADE7753) are more advantageous.
We offer integrators such as 4-20mA, 0-5V, 0-1A, 333mV for more use cases.
Features ApplicationLight weight and flexible installation Measuring instrument, laboratory instrument
Wide bandwidth range Power monitoring system
No lag, no saturation DC ripple measurement
No danger of second open-circuit Harmonic and transient monitoring
Good linearity Power meter
Multiple sizes can be customized Power analyzer sensor
Electrical parameters
| Model | RFSZ-80-85 | RFSZ-105-85 | RFSZ-150-85 | RFSZ-180-85 | RFSZ-240-85 | RFSZ-300-85 |
| Coil length | 293mm | 363mm | 493mm | 593mm | 723mm | 943mm |
| Window diameter | 80mm | 105mm | 150mm | 180mm | 240mm | 300mm |
| Weight | 124(±5)g | 130(±5)g | 150(±5)g | 155(±5)g | 165(±5)g | 176(±5)g |
| Coil internal resistance | 210(±10)Ω | 250(±10)Ω | 330(±10)Ω | 390(±10)Ω | 470(±10)Ω | 550(±10)Ω |
| Rated current | ≤500KA | |||||
| Accuracy | <0.5%25ºC | |||||
| Position error | ±1% | |||||
| Output voltage | 85mV/KA@50Hz 102mV/KA@60Hz | |||||
| Frequency range | 10Hz~20KHz | |||||
| Linearity | ±0.2%(10%~100%of rated value) | |||||
| Phase shift | ≤0.5° | |||||
| Working temperature | -30C~+80ºC | |||||
| Storage temperature | -40ºC~+80ºC | |||||
Dimensions and Diagram
Notice:
1. According to the rogowski coil principle, output voltage is proportional to the derivative of the input current (di/dt).
2. The output voltage is a constant rated frequency sinusoidal waveform in Hz, measured by the RMS value.
3.Vout (RMS)=Amps(RMS)×Hertz×K×10. the K depends on the manufacturer, for 50mV model the K value is 1.7.
Warning:
Do not apply pressure to the coil by any form of mechanical force (e.g., twisting, piercing, excessive pressure, excessive bending, etc.), which will reduces the accuracy of the device greatly
YHDC was established in 1992 and is a leading manufacturer of electromagnetic components and devices. Our products are widely used in industrial equipment, precision instruments and meters, aerospace, medical, railway, electric power, wind power and other high end industries that require high performance and reliability. The product range includes power transformers, current transformers, SCR trigger transformers, DC current sensors, residual/leakage current transformers and sensors, and Rogowski coils. YHDC's R&D team is constantly developing new high performance devices every year . The company is equipped with mold manufacturing and injection molding workshops . Over the years , we have designed and developed hundreds of products, including non standard products according to customer requirements. Focus on the design and manufacture of high-quality products, adapt to severe environments, long term reliable operation , and a service life of up to 20 years. YHDC has a number of patents, which are widely used in power, Internet of Things and other industries.
· All our CT will be well packed with box in a carton.
· You can design your own label and package
· Can be netural packing or OEM. Shipping
· Products are shipped via DHL/ FedEx /UPS /TNT, etc. (door to door), or air & sea shipment for larger qty.
Q: Do you provide samples? Can the product be customized?
A: Yes.
Q: How long is your delivery time?
A: 5-7 working days .
Q:Are you trading company or manufacturer?
A:We are factory.
Q:How can I place an order?
A: You can contact us by email about your order details, or place order online directly.
