Fault Interrupting through 27kV, 800A, 12.5kA symmetrical interrupting.
SOLID DIELECTRIC TECHNOLOGY Trident switchgear utilizes G&W’s time proven, submersible epoxy polymer system to fully encapsulate the vacuum interrupters. This system provides excellent insulation properties and incorporates a permanently bonded semiconductive external coating providing a fully shielded, void-free construction. Internal shields limit the electrical stress in the epoxy, therefore increasing its electrical integrity. All modules are UV protected and 100% factory tested for partial discharge. Dual ratio current transformers are encapsulated within each module providing either 500:1 or 1000:1 protection characteristics.
SUBMERSIBILITY Solid dielectric switchgear is deadfront and fully submersible. Units have remained fully operable after withstanding a 20 foot head of water for 20 days.
MAINTENANCE BENEFITS Solid dielectric insulation means no more routine maintenance as with oil and air switchgear. Solid dielectric insulation also offers an alternative to gas insulated devices.
APPLICATION FLEXIBILITY Solid dielectric switchgear offers compact, modular construction. Module configurations permit elbow style connections to be all front mounted or front/back mounted depending on user preference. The same size modules can function as either load break or fault interrupting. Three phase switches can be linked together to create tailored multi-way switch configurations. Trident fault interrupters offer a wide variety of electronic overcurrent controls for customized system protection coordination. Automation is easy whether it is an automatic transfer scheme or a fully integrated distribution automation “Smart Grid” project.
IDEAL REPLACEMENT FOR OIL FUSE CUTOUTS Trident fault interrupters are an ideal replacement for single phase or three phase oil fuse cutouts by offering the following advantages:
Trident-SR, magnetic actuator, SCADA ready switches simplify the process of automated switching and fault interruption on systems rated through 38kV. The extremely flexible design permits the user to customize the best solution for their particular application. From manual load break or fault interrupting, to remote operation, to fully automated distribution automation or Smart Grid schemes, the Trident-SR offers multiple application functionality, all within the same compact switch footprint. Compare these features:
FEATURES
For load break switching – The rugged magnetic actuator is tested to over 10,000 mechanical load break operations.
For fault interrupting - A variety of Schweitzer Engineering Laboratories (SEL) relays and G&W electronic controls are available to best meet the specific protection needs of the application. Programming using a laptop computer or built-in LCD display are available options. G&W controls are powered by CTs housed within the epoxy module. Other style controls are also available.
Trident-S three phase, spring assisted switchgear is available for load break or fault interrupting switching. The Trident-S is ideal for three phase distribution switching and protection, as well as for three phase oil fuse cutout and oil switchgear replacements. Fault protection can be provided using vacuum interrupters with integral CTs and a variety of overcurrent controls.
Trident-ST three phase, spring assisted switchgear can provide either three phase or single phase fault protection. The Trident-ST is ideal for three phase distribution switching and protection, as well as for three phase oil fuse cutout and oil switchgear replacements. Fault protection can be provided using vacuum interrupters with integral current transformers and a variety of overcurrent controls.
Features • 15.5, 27, or 29.3kV, 630A continuous current • 12.5kA symmetrical interrupting • Padmount and vault designs • Vertical or horizontal mounting • Hookstick operable with permanent or removable handles. • Optional 3-phase external ganged linkage for 3-phase operation
Trident-SP single phase, spring assisted switchgear is available for load break or fault interrupting switching. The compact units are ideal for switching residential loops and for oil fuse cutout replacements. Fault protection can be provided using vacuum interrupters with integral current transformers and a variety of overcurrent controls.
Features • 15.5, 27, or 29.3kV, 630A continuous current • 12.5kA symmetrical interrupting • Padmount and vault designs • Vertical or horizontal mounting • Large viewing windows simplify visual identification of open (green) or closed (red) vacuum contact position. The position indicator is connected directly to the drive assembly. • Hookstick operable, permanent mounted operating handles • Submersible switch construction • Submersible controls available • Manual operation
Ideal For Oil Fuse Cutouts Trident fault interrupters offer the following advantages: • No more fuse links to stock or replace • Maintenance-free, nonflammable solid dielectric insulation • Safe, positive load break operation and easy reset of tripped circuits • Electronic controls mirror fuse link curves • Compact footprint for easy change out • Submersible construction • 200A well or 600A separable
