Model: ZF9-420(L)/Y4000-50
The ZF9-420(L) GIS family from XD is a 4000A 50kA class equipment with a hydromechanical drive, featuring a compact structure and flexible placement options to meet the unique needs of most high-voltage transmission systems. The ZF9-420 is designed, tested, and certified to meet IEC standard type test requirements. With standard and modular design options that reduce the number of required components, substation layout is simplified, reducing design time and substation complexity. The ZF9-420 provides advanced GIS technology, reliability, ease of operation, and reduced maintenance efforts in a single compact package.
Main Features
- Single-phase enclosure in a modular, flexible, and compact design
- Ability to interrupt fault current with a long constant time (120 ms)
- Robust lightweight aluminum enclosure
- Dimensions: L x W x H: 5514mm x 3024mm x 6284mm
- Horizontal circuit breaker with spring-hydromechanical drive
- Short-circuit current rating of 50kA with a peak withstand of 125kA
- Disconnectors and earthing switches with motor drive or optional IPO or group drive
- Fast earthing switch (FES) with motor-spring mechanism
- Exclusive sealing technology (0.5% leakage per year)
- Integrated earthing switches
- Pre-assembled and factory-tested cells
Advantages
- Optimized and Compact Design: By using both standard and modular components, pre-assembled cells, and flexible placement, the ZF9-420 reduces on-site construction volume, installation time, and commissioning efforts.
- Enhanced Control and Monitoring: To ensure easy integration into new or existing substation control networks and connection to the control center, the ZF9-420 is equipped with Ethernet-fiber optic connectivity.
- Excellent Current Interruption Properties: The circuit breaker uses advanced arc-quenching technology, utilizing both arc energy and mechanical energy, for reliable interruption of fault and load currents up to the rated short-circuit current of 50kA with a peak withstand of 125kA.
