In the field of energy metering, new standards for current transformers (CTs) are usually updated and standardized around accuracy, reliability, compatibility, intelligence, etc. The following are the key points of the new current transformer standards that may appear in the current and future:

160A Ring Type Split Core Current Transformer

1. Higher accuracy requirements
Key points: The new standard may require current transformers to maintain high accuracy over a wider current range, such as from low load (such as 1% rated current) to overload (such as 120% rated current).
Impact: This will ensure that the metering accuracy of the energy meter is not affected under different load conditions and reduce metering errors.

2. Wider frequency response range
Key points: With the increase in harmonic content in power systems (such as non-linear loads and renewable energy access), current transformers need to maintain accurate measurements over a wider frequency range.
Impact: The new standard may require current transformers to accurately measure higher harmonics (such as 5th to 25th harmonics) based on the 50Hz/60Hz base frequency.

3. Intelligence and digital interface
Key point: The new standard may require current transformers to have digital output interfaces (such as Modbus, Profibus or Ethernet interfaces) to integrate with smart meters and IoT systems.
Impact: This will support real-time data transmission, remote monitoring and intelligent diagnosis functions, and improve the intelligence level of the power grid.

4. Enhanced anti-interference ability
Key point: Current transformers need to have stronger electromagnetic compatibility (EMC) to cope with interference in complex electromagnetic environments.
Impact: The new standard may increase the testing requirements for electromagnetic interference to ensure that current transformers can still work normally under strong magnetic fields, high voltages and high-frequency interference.

5. Environmental adaptability
Key point: Current transformers need to maintain stable performance under a wider range of environmental conditions, including temperature range (such as -40℃ to +70℃), humidity (high humidity and moisture resistance) and altitude (high altitude areas).
Impact: The new standard may put forward higher requirements for environmental adaptability testing to ensure that the equipment can operate reliably under harsh conditions.

6. Safety and reliability
Key point: The new standard may require current transformers to have higher insulation performance and overload protection capabilities to prevent equipment damage and safety accidents.
Impact: For example, short-circuit withstand test and insulation aging test are added to ensure the safety of equipment in long-term operation.

7. Interoperability and standardized interface
Key point: In order to support the compatibility of equipment from different manufacturers, the new standard may specify unified interface standards and communication protocols.
Impact: This will promote seamless integration between devices and reduce system integration costs.

8. Dynamic range and linearity
Key point: Current transformers need to maintain good linearity over a wider dynamic range to adapt to rapidly changing loads (such as electric vehicle charging and distributed energy access).
Impact: The new standard may increase the test requirements for dynamic performance to ensure the accuracy of the equipment under transient conditions.

9. Environmental impact and sustainability
Key point: The new standard may require current transformers to consider environmental impacts during design and manufacturing, such as reducing the use of hazardous substances (such as sulfur hexafluoride).
Impact: This will drive manufacturers to adopt more environmentally friendly materials and technologies in line with sustainable development requirements.

10. Certification and testing requirements
Key points: The new standard may introduce more stringent certification processes and testing methods to ensure that the equipment meets the latest technical requirements.
Impact: This will raise the market entry threshold and ensure that only equipment that meets high standards can be put into use.