Siemens- Vacuum Recloser 3ad, Medium-Voltage Equipment

• Customization: Available
• Breaking Capacity: Medium Voltage
• Operation: Energy-storage Type
• Model NO.: 3AD
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: Vcb
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker
• Certification: VDE, ISO9001-2000
• Rated Voltage: up to 38kv
• Rated Short-Circuit Breaking Current: 16ka
• Rated Normal Current: 800A
• Rated Lightning Impulse Withstand Vo: 125ka
• Transport Package: Wood Box Transp
• Specification: 1160*1079*476mm
• Trademark: Siemens
• Origin: China

Product Description

Product Description

     3AD vacuum reclosers combine the latest technology in vacuum switching and electronic control. They are based on decades of experience in circuit-breaker design, protection relay development and network planning. Siemens reclosers meet all the requirements for outdoor use in accordance with the recloser standards IEEE C37.60 and IEC 62271-111.
    The recloser consists of two main components:The switch unit, where Siemens offers its customers twodesigns - 27 kV or 38 kV- and the controller as protection and control unit. The latter is located inside the controlcubicle (CC), which also contains the electronics and auxiliary circuits.

Specification

Rated voltage up to 27 kV	• Rated short-circuit breaking     current up to 16 kA   • Rated lightning impulse withstand     voltage up to 125 kV   • Rated normal current up to 800 A
Rated voltage 38 kV	• Rated short-circuit breaking     current up to 16 kA   • Rated lightning impulse withstand     voltage up to 170 kV   • Rated normal current up to 800 A
Recloser sequence	O - 0.2 s…14400 s - CO - 2 s…14400 s - CO - 2 s…14400 s - CO - lockout
Opening time	< 35 ms
Closing time	< 60 ms
No. of operating cycles	10,000 maintenance-free
No. of phases	Three-phase, single-phase, triple-single
Standards	IEEE C37.60/IEC 62271-111; IEC 60068; IEC 61109; IEC 60529