The KYN28A-12 type armored removable AC metal-enclosed switchgear (hereinafter referred to as the switchgear) is a three-phase AC 50Hz, rated voltage 12kV indoor complete distribution device. It is used in power plants, substations, and industrial and mining enterprises to receive and distribute electric energy, providing control, protection, and monitoring functions for the circuit, and can also be used in places with frequent control operations.

Product Advantages

The circuit breaker has a long mechanical life (60,000 times) and a long electrical life (100 times), with an extremely low reignition rate and stable overall performance.

The slide rail type shutter mechanism meets the requirement of 3,000 maintenance-free mechanical life cycles.

Optimized structural layout, optimized electric field, and component selection can achieve an overall partial discharge of less than 30pC (test voltage: 1.1Ur).

Enhanced overall structural strength, self-developed arc ignition and flame extinguishing devices for the equipment, meeting the 1S arc ignition test requirements.

Reasonably arranged air ducts effectively enhance heat dissipation and reduce heat generation. Among them, the KYN28A-12/3150A-40 type switchgear cabinet meets the temperature rise requirements under natural air cooling conditions.

The connections between the main switch, the handcart, and the switchgear door all adopt mandatory mechanical interlocking methods, meeting the "five-proof" requirements.