The market demand is growing every day, so fortunately more companies have emerged or have grown, in order to adequately provide what they offer, however, growth also involves adapting your materials to the new needs that arise in the company, one of them talks about improving your electrical installations, to avoid major losses or anticipate failures in machines or increase in the rate. Given this, many industries must be regulated on that side, so the grid code has been implemented.

What is the grid code?

The grid code is the technical regulation issued by the CRE (Energy Regulatory Commission) on April 08, 2016, it contains minimum and necessary technical requirements that ensure the efficient development of all processes associated with the National Electric System (SEN).

What should I know about the Grid Code?

  • Establishes minimum technical requirements for all activities carried out in the National Electric System.
  • Its objective is to define technical criteria that promote that the National Electric System reaches and maintains an adequate operating condition.
  • The technical criteria refer to the SEN users’ compliance with activities such as planning, operational control, physical control, interconnection and connection, in order to guarantee the continuity and quality of the electricity supply and promote the efficient and reliable development of the SEN infrastructure.
  • This code became effective as of April 9, 2016, one day after it was published in the DOF (Official Gazette of the Federation).

What is it made of?

The grid code is made up of two main sections:

  • The first one talks about the General Provisions of the SEN, and provides general criteria for all the activities regulated by this document.
  • The second section refers to the Operating Provisions of the SEN, and is made up of Regulatory Manuals, Procedures and Technical Annexes.

What are the technical requirements of the Grid Code?

Chapter 4 of the General Provisions for the Connection of Load Centers (Connection Provisions) establishes the general technical requirements to be met by Load Centers, which are defined in greater detail in the Regulatory Manual of Technical Requirements for the Connection of Load Centers (Connection Manual).

The grid code is made up of two main sections:

  • Medium voltage
  • High voltage

The specific requirements per voltage level at Connection Point 64 are as follows:

Medium Voltage (>1 kV, ≤ 35 kV):

  1. Voltage:
    1. Permanent voltage variations,
    2. Temporary voltage variations,
    3. Transient conditions of voltage variation.
  2. Frequency:
    1. Permanent and temporary frequency variations,
    2. Frequency variations at load connection or disconnection.
  3. Short circuit
  4. Protections
  5. Control
  6. Information exchange
  7. Power quality:
    1. Current unbalance.

High Voltage (≥ 35 kV):

  1. Voltage:
    1. Permanent voltage variations,
    2. Temporary voltage variations,
    3. Transient conditions of voltage variation.
  2. Frequency:
    1. Permanent and temporary frequency variations,
    2. Frequency variations at load connection or disconnection.
  3. Short circuit
  4. Power factor
  5. Protections
  6. Control
  7. Information exchange
  8. Power quality:
    1. Harmonic distortion on current,
    2. Voltage fluctuation (flicker),
    3. Current unbalance.

To which companies does this apply?

Grid Code Connection regulations apply to all Medium and High Voltage connected Load Centers.

If you have any doubts, these technical requirements can be consulted in more detail in the Guide on the technical requirements of the Grid Code applicable to Load Centers provided by the CRE.

At Alher Sem we are qualified to provide you with adequate advice in order to implement the CR and contribute positively in the official dispositions.

Contact us.

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