PD IEC/TS 62786:2017

What is PD IEC/TS 62786 – Energy resources connection with the grid about? 

PD IEC/TS 62786 is an international standard that discusses the distributed energy resources connected with the grid. A distributed energy resource (DER) is a small-scale unit of power generation that operates locally and is connected to a larger power grid at the distribution level. 

PD IEC/TS 62786 provides principles and technical requirements for distributed energy resources (DERs) connected to the distribution network. It applies to the planning, design, operation and connection of DERs to distribution networks. PD IEC/TS 62786 includes general requirements, connection scheme, choice of switchgear, normal operating range, immunity to disturbances, active power response to frequency deviation, reactive power response to voltage variations and voltage changes, EMC and power quality, interface protection, connection and start to generate electrical power, active power management, monitoring, control and communication, and conformance tests. 

PD IEC/TS 62786 specifies interface requirements for connection of generating plants with the distribution network operating at a nominal frequency of 50 Hz or 60 Hz. 

NOTE: PD IEC/TS 62786 includes distributed generation and permanently connected electrical energy storage in the form of synchronous generators, asynchronous generators, converters, etc., connected to the medium voltage (MV) or low voltage (LV) distribution network. 

Who is PD IEC/TS 62786 – Energy resources connection with the grid for? 

PD IEC/TS 62786 on distributed energy resources applies to: 

• Manufacturing of transmission lines 
• Manufacturer of power grids 
• Quality testing personnel 
• Electrical engineers 

Why should you use PD IEC/TS 62786 – Energy resources connection with the grid? 

Distributed energy resources are generators, that includes loads having a generating mode (such as electrical energy storage systems) connected to the low or medium voltage distribution network, with their auxiliaries, protection and connection equipment. PD IEC/TS 62786 provides you with monitoring, control and communication in which the guidance provided by DERS to the DSO includes the following: 

• DER connection status, active and reactive power, and generate electrical energy 
• Bus voltage and frequency at the POC 
• Status of breakers at the POC. 

PD IEC/TS 62786 provides communication systems used as a guidance exchange between DERs and the DSO, physical security and cyber security measures should be considered. DERs with designated black start capability, communication between DERs and the DSO is possible even in the case of power failure. PD IEC/TS 62786 provides you with comprehensive information useful for Distributed energy resources connected with the grid.