J&D AC RCT provide non-contact detection of AC current
The AC RCT is clamp type of air-core design with various utility, high reliability & Cost-effective solution for precise current measurements.
The rated current range is 100 to 50000A AC and secondary output value is 0-5/10 V or 4-20 mA DC and 1A/5A/333mVAC/Instantaneous AC voltage.
Rogowski coil is designed as open type and flexible sensor which can be installed to conductor easily. There are two terminals on end of coils and it is designed lead wire spiral coil from one end to other end which is returned through center of coil. To provide optimizing trans-mission, length will be chosen by rated current measuring range. Primary current induced proportional voltage from output of coil. This technology supplies very high sensing on primary current changing value.
Electronic integrated circuit need to be changed from voltage signal to output signal which is proportional versus input current. Rogowski coil is possible to accurate mechanism and linearity sensing by additional electronic component and integrator circuit
Rogowski coil feature
Rogowski coil has better frequency reaction than normal current transformer, due to low inductance and non-magnetic core. It also doesn’t use saturation core, so it is very accurate on high primary current. These kind of sensors are better to apply specially on power measuring system which has high current or fast changing current. To measure high current, normal current transformer is usually big and heavy. In contrast, Rogowski coil is small and light, so it is simply installed as advantage.
Rogowski coil technology
The AC CT have two types of sprit-core & solid-core design with various utility, high reliability & Cost-effective solution for precise current measurements. The rated current range is 5 to 2400A AC and secondary output value is 0-5/10 V or 4-20 mA DC & 0.1A/1A/5A/333mVAC/Instantaneous AC current
CLAMP ON CURRENT PROBE TECHNOLOGY
J&D AC JCP provide non-contact detection of AC current
The AC clamp on current probes are based on AC transformer principle with various utility, high reliability & Cost-effective solution for precise current measurements.
The rated current range is 5 to 1000A AC and secondary output values are 0-5/10 V or 4-20 mA DC & 0.1A1A/5A/333mVAC
J&D JCP provide non-contact detection of DC or AC current
To supply great property against electric jamming, it needs equivalent winding. This kind of performance is up to Rogowski manufacturing process. Other main points are positioning conductor in loop and consider opening clip from external conductor’s sensitivity.
Clamping clip makes sure of high symmetry on both end of coils and accurate mechanism overall. New technology in this field, as special hardware and electric property, possibly makes better accuracy and strong tolerance on conductor’s position. Conductor’s positioning error is not good as ±3% at 50/60Hz generally, but on the other hand, new Rogowski coil has error lower than ±0.5%.