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KYN61-40.5 Withdrawable Metal Clad Switchgear
- KYN61-40.5 withdrawable metal-clad indoor AC switchgear (hereinafter referred to as withdrawable switchgear), suitable for rated voltage 40.5kV three-phase AC, rated frequency 50Hz single busbar, is a new type of high-voltage withdrawable switchgear used for receiving and distributing electrical energy.
►Overview
KYN61-40.5 withdrawable metal-clad indoor AC switchgear (hereinafter referred to as withdrawable switchgear), suitable for rated voltage 40.5kV three-phase AC, rated frequency 50Hz single busbar, is a new type of high-voltage withdrawable switchgear used for receiving and distributing electrical energy. It is used as a main equipment in power systems such as power plants, substations, industrial and mining enterprises, to achieve control, protection, and monitoring, especially suitable for frequent operation places.The withdrawable switchgear is equipped with ZN85-40.5 or LN2-40.5 withdrawable circuit breakers with strong breaking capacity, long electrical and mechanical endurance, maintenance free, and long maintenance cycles, which meet the requirements of IEC60298, GB/T3906-2020, DL/T404-2007 and other standards.
►Technical Parameter
| Name | Unit | Parameter | ||
| Rated voltage | kV | 40.5 | ||
| Rated frequency | Hz | 50 | ||
| Rated current | A | 30-2000 | ||
| Rated current of main bus | A | 630, 1250, 1600, 2000 | ||
| Rated peak withstand current | kA | 50, 63, 80 | ||
| Rated short-term withstand current | kA | 20, 25, 31.5 | ||
| Rated short circuit duration | s | 4 | ||
| Rated short-circuit breaking current | kA | 20, 25, 31.5 | ||
| Rated short-circuit closing current | kA | 50, 63, 80 | ||
| Out-of-phase ground fault breaking (rated breaking current) | % | 86.7 | ||
| Rated short circuit breaking times | time | 30, 20 | ||
| Rated mechanical life | Vacuum circuit breaker | time | 10000/6000 [3000 (1600A)] | |
| SF6 grounding switch | 3000 | |||
| Rated insulation level | 1min power frequency withstand voltage | Alternately and oppositely | kV | 95 |
| Vacuum fracture | 95 | |||
| Isolation fracture | 118 | |||
| Lightning impulse withstand voltage | Alternate with | 185/185/215 | ||
| Isolation fracture | ||||
| Auxiliary control loop | Rated voltage | V | -110, -220/ -110, -220 | |
| 1min | 2000 | |||
| Rated operating sequence | 20, 25, 31.5kA automatic reclosing | / | O-0.3s-CO-180s-CO | |
| Protection level (enclosure/compartment) | / | IP4X/ IP2X | ||
| Pollution grade | / | Ⅱ级 | ||
| Cabinet size (width * depth * height) | mm | 1400*2800*2600 | ||
►Product Features
1.Compact structure：The skeleton is formed by bending thin steel plates and assembled with high-strength bolts and nuts, with high mechanical strength and light weight. By using composite insulation and optimizing electrode shape, the cabinet structure is compact and the footprint is reduced.
2.Good suitability：The product is designed according to the second categories, which meets the harsh conditions (all working conditions) and is suitable for Class II pollution areas. The incoming and outgoing cables are positioned up to 870mm for easy wiring. The scheme is complete and convenient, and it can meet the requirements of various power distribution systems.
3.Stable performance：There are reliable mechanical "five prevention" interlocks between the circuit breaker, grounding switch and door, and the operation is completely flexible; the circuit breaker has stable and reliable breaking performance, long electrical and mechanical life, easy installation and maintenance, and long maintenance cycle.
4.Safe and stable：Each functional component is placed in a separate compartment and equipped with an independent pressure relief channel to ensure the safety of personnel and equipment, and the cabinet adopts flame-retardant bus bushing to prevent fire and prevent the expansion of hazard.
5.Intelligentizing：The intelligent control and protection device can facilitate the realization of power distribution automation. When used in conjunction with the intelligent operation and maintenance background, it has the advantages of preventing and avoiding accidents, strengthening the internal energy assessment of enterprises, reducing equipment maintenance and overhaul time, and realizing data resource sharing.
6.High protection level：The surface of the cabinet body is powder coated, anti-corrosion, anti-oxidation, and beautiful appearance, IP4X enclosure rating.
Indoor vacuum load switch supplier – Premium quality, IEC-certified, and designed for efficient power distribution in industrial applications. Trusted China manufacturer offering competitive pricing and global delivery. Contact us for a free quote!
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