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Dehler
Dehler
Insulation and Isolation: Provides insulation and isolation between the high-voltage primary energized main circuit and the grounding cabinet, and between phases, ensuring operator safety.
Electrical Connection: Serves as a transitional component for electrical connections within the circuit breaker, connecting the busbar and contacts.
Shielding and Support: Helps shield electromagnetic eddy currents, extends creepage distance, and supports the busbar and contacts.
Materials: Epoxy resin APG pressure gel molding.
Insulation Performance: The contacts can withstand 42kV/5 minutes of power frequency and 75kV (peak) lightning impulse to ground; the end temperature rise during long-term operation at rated current is ≤65°C.
Shielding Design: Includes aluminum alloy or stainless steel liners to block magnetic circuits, as well as staggered skirts and a semiconductor coating, effectively eliminating eddy current effects and increasing creepage distance.
Optimized Design: Some models also integrate interlocking devices, optimize heat dissipation design, or adopt a splicing structure to improve safety and installation efficiency.
• Integral to 6-12kV handcart-type high-voltage switchgear in indoor distribution systems, supporting safe circuit switching and isolation.
• Widely used in substations, distribution rooms, and power control centers for industrial plants, commercial buildings, and residential complexes.
• Essential in renewable energy facilities (solar, wind power plants) as part of medium-voltage distribution equipment, ensuring reliable energy transmission.
• Applied in critical infrastructure like railways, airports, and data centers, where uninterrupted power supply and safety are paramount.
• Compatible with low- and medium-voltage switchgear upgrades, enhancing insulation performance in aging power systems.
