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33KV Medium Voltage Metalclad Switchgear Panels
As a major exporter of medium-voltage switchgear in China, Cotenele’s products are widely distributed across global markets.The KYN61-40.5 (Z) series 33KV Medium Voltage Metalclad Switchgear Panels manufactured by Cotenele are designed for three-phase AC 50 Hz power systems. They are used for receiving and distributing electrical energy in power plants, substations, and distribution rooms of industrial and mining enterprises, while also providing control, protection, and monitoring of electrical circuits.
The KYN61-40.5 series 33KV Medium Voltage Metalclad Switchgear Panels is a widely used indoor switchgear solution for 35 kV power transmission and distribution systems. Its full designation is “Armored Removable AC Metal-Enclosed Switchgear.” Cotenele is a reliable and experienced manufacturer of this type of equipment.
The KYN61-40.5 switchgear is primarily used for the control, protection, and monitoring of electrical circuits in power transmission and distribution systems. Featuring mature technology, high operational safety, and proven performance, it is extensively applied in power plants, substations, and industrial and mining power distribution networks.
This switchgear complies with the following standards:
GB 3906 — 3–35 kV AC Metal-Enclosed Switchgear
GB/T 11022 — Common Technical Requirements for High-Voltage Switchgear and Control Equipment
IEC 62271-200 — AC Metal-Enclosed Switchgear and Control Equipment for Rated Voltages Above 1 kV and Up to 52 kV
Modle and meanings
Main technical parameters
| Item | Unit | Technicalparameters | |
| Rated voltage | kV | 40.5 | |
| Rated insulation level | Lightning impulse withstand voltage (full wave) | kV | 185 |
| Power frequency withstand voltage(1min) | 95 | ||
| Rated frequency | Hz | 50 | |
| Rated current | A | 630;1250;1600;2000 | |
| Rated short-circuit breaking time | Power frequency withstand voltage(1min) | kV | 20、25、31.5 |
| Rated short-circuit closing current (peak) | kV | 50、63、80 | |
| Rated dynamic stability current(peak value) | kV | 50、63、80 | |
| 4s thermal stability current(effective value) | kV | 20、25、31.5 | |
| Protection class of enclosure | Vacuum circuit breaker cabinet | mm | IP4X |
| Dimensions(W*D*H) | SF6 short circuit breaker cabinet | 1400×2200×2600 | |
Main technical parameters for KYN61-40.5
| Item | Unit | Technicalparameters | ||
| ZN85A-403AH3 SF1/SF2 | ||||
| Rated voltage | kV | 40.5 | ||
| Rated insulation level | Lightning impulse withstand voltage (full wave) | kV | 185 | |
| Power frequency withstand voltage(1min) | 95 | |||
| Rated frequency | Hz | 50 | ||
| Rated current | A | 1250;1600;2000 | 630;1250;2500 | |
| Rated short-circuit breaking time | kV | 20、25、31.5 | 25、31.5 | |
| Rated short-circuit closing current(peak) | kV | 50、63、80 | 63、80 | |
| Rated dynamic stability current(peak value) | kV | 50、63、80 | 63、80 | |
| 4s thermal stability current (effective value) | kV | 20、25、31.5 | 25、31.5(3s) | |
| Opening time | ms | 36~60 | ≤45 | |
| Close time | ms | 40~90 | ≤75 | |
| Rated operating sequence | O-0.3S-CO-180S-CO | |||
Main technical parameters for KYN61-40.5
Working conditions
1. Ambient air temperature: The maximum temperature shall be +40°C, and the minimum temperature shall be -10°C.
2. Altitude: The installation site shall not exceed 1oo0 m above sea level.
3. Ambient relative humidity: The daily average value shall be no more than 95%, and the monthly average value shall be no more than 9o%.
4. Ambient air conditions: The eguipment is not intended for locations where corrosive substances, heavy pollution, flammable gases, or intense vibrations are present.
5. Seismic conditions: Should an earthquake occur, its intensity must not exceed magnitude 8.
What are the applications of KYN61-40.5 switchgear?
The KYN61-40.5 series 33KV Medium Voltage Metalclad Switchgear Panels is widely used in:
1. Power plants and grid substations (most common)
2. Industrial and mining enterprises (metallurgy, petrochemicals, coal mines, cement, automotive manufacturing, etc.)
3. Renewable energy projects (PV power plants, wind farms – in their step-up or distribution substations)
4. Infrastructure (airports, hospitals, high-rise buildings, large commercial complexes)
5. Special applications (frequent operation sites)
What are the products advantages for the KYN61-40.5 switchgear?
High safety: Fully metal-armored and compartmentalized, equipped with a comprehensive "five-proof" interlocking system to prevent misoperation and ensure personnel and equipment safety. Each functional compartment has an independent pressure relief channel to direct arc faults away from the operator.
High reliability: Long design life; key components such as the circuit breaker and earthing switch can achieve tens of thousands of mechanical operations.
Flexible configuration: Compatible with various of mainstream circuit breaker brands (e.g., domestic ZN85, ABB VD4, etc.) to meet different user requirements. Supports multiple main wiring schemes (cable entry/exit, overhead line entry/exit, etc.).
How to buy the 33KV Medium Voltage Metalclad Switchgear Panels?
Please provide these below information before you order:
1. The single line diagram of the main circuit scheme, its intended application, the specific main circuit configuration, the floor plan of the switchgear room, and the arrangement and layout drawings of the equipment, It will be best if you can provide the detail project requirement documents.
2. Requirements for control, measurement, and protection functions of the switchgear, as well as requirements for other enclosed equipment and automation devices.
3. The type designation, technical specifications, and quantity of each electrical component used in the switchgear.
4. If a busbar bridge is required between switchgear units or for the incoming line cabinet, the following detailed data shall be provided:rated current-carrying capacity of the busbar bridge, its span, and its height above the floor.
5. If the switchgear is to be used under special environmental conditions, such conditions shall be specified in detail when placing the order.
6. Any other special requirements shall be discussed and agreed upon with our company.
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