Purpose. It is used in the verification circuit of current measuring instruments.
Specifications:
The composition of the multivalued degree includes three blocks based on two-stage current transformers:
- Degree A – 1: 100 for currents 10 kA
- Degree B – 1: 100 for currents 5 kA
- Measure C adjustable – 1: 0.001-1: 10 for currents of 1 kA
- Range of converted currents, kA 0-15
- Transformation ratio range 0.001-10
- Transformation ratio error ≤ 2×10–6 modulo
- ≤10 angle. minutes per phase.
Application area. Energy.
Advantages. Thanks to the developed method of balancing the operating cycle on the magnetization curve of the core material of the reference current transformer, the accuracy and stability of the equipment of the State Standard of the AC power conversion coefficient has been increased by 5-10 times. This improves the accuracy of electricity metering and the efficiency of power grid automation systems.
Description. For work as part of the State primary sample of the unit of the coefficient of scale conversion of alternating current power of industrial frequency.