What is PD CLC/TR 50646 - Specification for reversible D.C. substations about?
PD CLC/TR 50646 is a European standard on fixed installations that discusses the specification for reversible D.C substations to improve their performance.
PD CLC/TR 50646 specifies systems and components that facilitate the flow of energy to and from the upstream A.C. grid including their related interfaces.
PD CLC/TR 50646 provides the necessary functions for the recovery of braking energy. It is intended to be used in fixed electrical installations with nominal voltage not exceeding 3 000 V DC which supply electrical power to vehicles used in public guided transport systems, i.e., railway vehicles, tramway vehicles, underground vehicles, and trolleybuses. PD CLC/TR 50646 also provides an overview of state-of-the-art applications, defines the minimum recommendations that are presently available, and provides functional recommendations to be applied to these substations.
PD CLC/TR 50646 focuses mainly on the substation converters and the traction transformers. Other devices such as switchgear - if they are the same as in classic substations - are not addressed here.
Moreover, this specification addresses performance, constraints, validation, and acceptance criteria for the implementation of reversible substations.
Note: Due to the different possible solutions and different types of existing technologies PD CLC/TR 50646 does not provide technical specifications of the basic components that facilitate the functionalities described.
Who is PD CLC/TR 50646 - Specification for reversible D.C. substations for?
PD CLC/TR 50646 on specifications for reversible D.C. substations used in railways in useful for:
- Reversible D.C. substations manufacturers
- Technical staff for reversible D.C. substations
- Test centres
- Regulatory authorities
Why should you use PD CLC/TR 50646 - Specification for reversible D.C. substations?
Reversible substations can feed the train regenerative braking energy (up to 100 %) back to the A.C. high voltage distribution network while maintaining the capability of exchanging energy between trains on the D.C. line. A substantial amount of energy can be saved for D.C. systems that operate electric trains fitted with regenerative braking, on commuter services, or operating on steep gradient lines.
PD CLC/TR 50646 guideline assists you with the application of reversible substation, braking safety, standard performances, minimum recommendations, additional recommendations, safety, constraints, functional aspects, system simulation and equipment sizing, and further standardization needs for reversible D.C. substations used in railways.
This assists in building efficient reversible D.C. substations that are durable and of high quality for use in railways and also assists in enhancing the efficacy of reversible D.C. substations.
With compliance and obedience to PD CLC/TR 50646, you can standardize the performance of reversible D.C. substations that assists you in saving a substantial amount of energy for the D.C. system.
