Ringmaster AirSeT - Ring Main Unit
Verified by manufacturer 4 days ago
RN2Air-T1 TLF
RN2Air-T1 TLF
Ring main units with two ring switch disconnectors and circuit breaker.
Application
Ringmaster AirSeT design is the optimal choice for electrical distribution companies and distribution services, suitable for the following applications:
- Building and industries.
- Energy and infrastructure.
- Mining.
- Package substation.
Description
Non-extensible (RN2Air) ring main units with two ring switch disconnectors and circuit breaker in pure air gas filled tank with pressure relief facility.
Features and benefits:
- IP54 degree of protection of the Ringmaster’s enclosure instead of housing makes it possible to be used in the most aggressive environment.
- No consideration needs to be taken for an external enclosure, saving cost compared to traditional solutions.
General information
Color | Grey |
Finish | Smooth |
Material | Metal |
Shape | Rectangle |
Length | 1019 mm |
Width | 866 mm |
Height | 1800 mm |
Uniclass | |
CAWS | V90/590 Equipment |
SKU Code | RN2Air-T1 TLF |
Specification data - High-voltage ring main units
Classification data | |
Standard | To IEC 62271-1, IEC 62271-200 and IEC 62271-201. |
Third-party certification | To ENA TS 41-41. |
Internal arc classification | To IEC 62271-200, Class AF. |
Mounting arrangement | Transformer-mounted. Free-standing. |
Switchgear arrangement | Non-extensible. |
Rated voltage (Ur) | 12 kV. |
Rated frequency | 50 Hz. |
Number of phases | Three. |
Rated insulation levels | |
Rated short-duration power frequency withstand voltage (Ud) | 28 kV for one minute. Guidance for specification option: As standard. 38 kV for one minute. Guidance for specification option: Optional. Manufacturer guidanceCommon value/across isolating distance. |
Rated lightning impulse withstand voltage (Up) | 75 kV phase-to-phase, phase-to-earth. Guidance for specification option: As standard. 95 kV phase-to-phase, phase-to-earth. Guidance for specification option: Optional. |
Rated short-time withstand current (Ik) | 21 kA for three seconds. |
Enclosure | |
Ingress protection (minimum) | To BS EN 60529, IP54. |
Mechanical protection (minimum) | IK10. |
Colour | Grey. |
Cable entry | Direct coupling to transformer. Free-standing. |
Dimensions | |
Width (maximum) | 890 mm. |
Height (maximum) | 1810 mm. |
Depth (maximum) | 920 mm. |
Busbars | |
Material | Bare copper. |
Rated continuous current (Ir) | 200 A. 630 A. |
Ring switches | |
Standard | To IEC 62271-102 and IEC 62271-103. |
Format | SF6-free, circuit breaker earth switch. |
Rated continuous current (Ir) | 630 A. |
Rated short circuit making current (Ima) | 52.5 kA. |
Switch class | E2. |
Operating mechanism | Independent manual. Guidance for specification option: Spring opening and closing. Motor operated. |
Circuit breaker | |
Standard | To IEC 62271-100. |
Format | SF6-free, circuit breaker earth switch. |
Method of installation | Fixed. |
Rated continuous current (Ir) | 200 A. |
Rated short circuit breaking current (Isc) | 21 kA. |
Rated short circuit making current (Ima) | 52.25 kA. |
Rated operating sequence | O – 3 min – CO – 3 min – CO. |
Circuit breaker class | E2. |
Operating mechanism | Independent manual. Guidance for specification option: Spring opening and closing. Motor operated. |
Protection | Time Limit Fuse (TLF). |
Indication | Pure air gauge, mechanism ON/OFF, mechanism EARTH/MAIN, on-off push button. |
Model | RN2Air-T1 TLF. |
Sustainability data
Material | Metal |
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