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Medium-voltage switchgear

Xiria

Xiria is Eaton’s SF6-free medium voltage switchgear product family for ring main unit stations and secondary switchgear applications.

The highly compact medium voltage switchgear panels are used to control and protect electrical equipment operated by utilities, commercial building owners and operators of distributed renewable generation assets such as solar farms and wind turbines. Eaton Xiria requires minimal monitoring and maintenance, resulting in low operating costs.

Rated voltage
up to 24 kV
Rated normal current
630 A
Internal arc classification
AFLR 20 kA - 1s

Core features

Safe in use

  • The position of the switchgear panel components is clearly visible through the inspection window at the front
  • Logical mechanical and electrical interlocks prevent incorrect operation

 

Highly flexible

  • Comprehensive portfolio of power panel types that can also be expanded
  • Multiple configurations are possible

 

Low total cost of ownership

  • Maintenance-free vacuum circuit breakers and load-break switches
  • Primary components and drives are installed inside a hermetically sealed enclosure
  • Significantly lower costs for end-of-life disposal

 

Environmentally friendly

  • Reduced number of components
  • No use of SF6-gas for switching and insulation

The Xiria product family

Xiria block type

Eaton Xiria 021

The Xiria block-type system combines a high level of operational safety and availability with an environmentally friendly and compact design. An extensive range of options and panel types makes the Xiria block-type system the ideal choice for ring main unit applications up to 24 kV.

 

Xiria extendable type

Eaton Xiria 061 Xiria E 2 Panels Top Unit
The Xiria extendable type, also known as Xiria E, extends the Xiria product family by adding the option of (future) expansions. Together with the extensive range of functions and panel types, the extendable and compact Xiria MV switchgear panels are suitable for secondary switchgear configurations up to 24 kV.

Xiria metering solutions

Eaton Xiria 020 4 panels
Xiria metering solutions offer maximum flexibility. The air-insulated metering panel integrates seamlessly with the Xiria block-type and Xiria extendable-type panels, with the option to install all instrument transformers inside the cable compartment of a regular Xiria panel. This is ideal wherever floor space is at a premium.

SF6-free switchgear

Using vacuum technology instead of SF6 not only makes Xiria better for the environment, but also minimises maintenance, enhances operational safety, greatly increases the number of safe switching operations, and eliminates expensive end-of-life disposal procedures. Eaton is committed to SF6-free switchgear to protect the environment.

Compact switchgear for maximum flexibility

Xiria offers a high level of operational safety and is suitable for applications up to 24 kV. The Xiria product family was developed on the basis of Eaton's proven vacuum circuit breakers, which require no maintenance and are certified for 30,000 operations. All live parts are single-pole insulated. The materials used provide optimal insulation combined with excellent thermal properties. In addition, the insulation is designed to provide effective control of electric fields in the vicinity of the components to minimise the risk of internal arcing. Xiria houses both the primary components and the switchgear drive in a completely encapsulated enclosure, thereby fully protecting the entire system against environmental effects.
Specifications

Technical information

Xira block type

Xiria block type dimensions
Xiria block type dimensions side view

Xira extendable type

Xiria Expandable type dimensional drawing
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General

Rated voltage kV 3.6  7.2 12  17.5 24
Impulse withstand voltage kV 40 60 75/95 95 125
Power frequency withstand voltage kV-1m 10 20 28 / 38 / 42 38 50
Rated frequency Hz 50/60 50/60 50/60 50/60 50/60
Loss of service continuity   LSC2B LSC2B LSC2B LSC2B LSC2B
Partition class   PM PM PM PM PM
Internal arc classification (IAC)   AFLR AFLR AFLR AFLR AFLR
Internal arc resistance kA-s 20-1 20-1 20-1 20-1 20-1
Internal arc resistance with absorber kA-s 16-1 16-1 16-1 16-1 16-1
Internal arc resistance with cable compartment kA-s 16-1 16-1 16-1 16-1 16-1
Internal arc resistance with cable comp. alternative kA-s 20-1 20-1 20-1 20-1 20-1
Degree of protection in service   IP3X IP3X IP3X IP3X IP3X
Degree of protection with doors/covers open   IP2X IP2X IP2X IP2X IP2X
Ambient air temperature range °C -25 + 40 -25 + 40 -25 + 40 -25 + 40 -25 + 40
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Busbar system

Rated voltage kV 3.6  7.2 12  17.5 24
Rated short-time withstand current alternative kA-s 20-1 20-1 20-1 20-1 20-1
Rated short-time withstand current alternative kA-s 20-3 20-3 20-3 20-3 20-3
Rated peak withstand current kA 50 50 50 50 50
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Load-break switches

Rated voltage kV 3.6  7.2 12  17.5 24
Rated active load break current A 630 630 630 630 630
Rated short-circuit making current kA 50 50 50 50 50
Rated short-time withstand current kA-s 20-1 20-1 20-1 20-1 20-1
Rated short-time withstand current alternative kA-s 20-3 20-3 20-3 20-3 20-3
Rated cable charging breaking current A 31.5 31.5 31.5 31.5 31.5
Mechanical endurance class   M2 10,000x M2 10,000x M2 10,000x M2 10,000x M2 10,000x

Mechanical endurance class

if used as an earth switch

  M0 M0 M0 M0 M0

Mechanical endurance class

disconnector

  M0 M0 M0 M0 M0
Electrical endurance class   E3 E3 E3 E3 E3
Electrical endurance class as earth switch   E2 E2 E2 E2 E2
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Circuit breakers

Rated voltage kV 3.6  7.2 12  17.5 24
Rated normal current A 630 630 630 630 630
Rated breaking current kA 20 20 20 20 20
Rated short-circuit making current kA 50 50 50 50 50
Rated capacitive switching current   C2 C2 C2 C2 C2
Rated cable charging breaking current A 31.5 31.5 31.5 31.5 31.5
DC time constant msec 45 45 45 45 45
DC component % <20 <20 <20 <20 <20
Mechanical endurance class   M1 M1 M1 M1 M1
Mechanical endurance class as earth switch   M1 M1 M1 M1 M1
Mechanical endurance class disconnector   M0 M0 M0 M0 M0
Electrical endurance class   E2 E2 E2 E2 E2
Rated short-time withstand current kA-s 20-1 20-1 20-1 20-1 20-1
Rated short-time withstand current alternative kA-s 20-3 20-3 20-3 20-3 20-3
Minimum tripping time msec 80 80 80 80 80
Mechanism type O - 3 min - CO - 3 min - CO
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Fused load-break switch

Rated voltage kV 3.6  7.2 12  17.5 24

Fused in accordance

with IEC 60282-1

kV 10/12 10/12 12 20/24 24
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Standards and regulations

Xiria medium-voltage switchgear complies with the most recent IEC standards:

  • IEC 62271-1 for high-voltage switchgear
  • IEC 62271-100 for circuit breakers
  • IEC 62271-102 for changeover switches and earthing switches
  • IEC 62271-103 for load-break switches
  • IEC 62271-200 for metal enclosed switchgear
  • IEC 62271-304 for metal enclosed switchgear in severe climatic conditions
  • IEC 61869-1 for instrument transformers – Part 1: General requirements
  • IEC 61869-2 for instrument transformers – Part 2: Additional requirements for current transformers
  • IEC 61869-3 for instrument transformers – Part 3: Additional requirements for voltage transformers
  • EN 50181 for plug-in type bushings above 1 kV up to 36 kV
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The Xira medium-voltage switchgear comes with the following certifications:

  • ENA-TS
  • GOST
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The Xiria production facilities comply with the following standards:

  • ISO 9001 for quality management
  • ISO 14001 for environmental management
  • ISO 50001 for energy management
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