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KYN61-40.5(Z) Armored Withdrawable Type AC Metal-Enclosed Switchgear
KYN61-40.5(Z) Armored Withdrawable Type AC Metal-Enclosed Switchgear
The KYN61-40.5(Z) type armored withdrawable AC metal-enclosed switchgear (hereinafter referred to as “switchgear”) is suitable for three-phase AC power systems with frequencies of 50 Hz or 60 Hz. It is widely used in power plants, substations, and distribution rooms of industrial and mining enterprises, for the reception and distribution of electricity, as well as for the control, protection, and monitoring of electrical circuits.
Key Features:
KYN61-40.5 is a 35kV indoor armored withdrawable metal-enclosed switchgear. It adopts a modular metal enclosure structure, with complete five-prevention interlocks, ensuring safety and reliability. Equipped with a vacuum circuit breaker, it has excellent electrical performance and strong short-circuit breaking capacity. The cabinet layout is reasonable, the heat dissipation is good, it can be maintained on both sides, and is suitable for high-voltage power distribution systems in substations, factories, and mines, with stable operation and strong scalability.
Why choose KYN61-40.5(Z) Armored Withdrawable Type AC Metal-Enclosed Switchgear
The structure of the switchgear is designed according to GB3906-2006 and IEC298 standards, consisting of a cabinet body and a withdrawable part (truck). The cabinet structure is modular, bolted together, with metal partitions separating the interior into compartments for circuit breakers, main busbars, cables, and relay instrumentation. The enclosure has a protection rating of IP3X, while the compartments have a protection rating of IP2X, ensuring all metal components are reliably grounded, with independent venting pressure relief channels between the compartments of the main circuit system.
The trucks can be classified into circuit breaker trucks, voltage transformer trucks, measurement trucks, and isolation trucks. All types of trucks have the same dimensions, providing excellent interchangeability. Each truck has a test/isolation position and a working position, with interlocking devices in place to ensure the truck cannot be moved arbitrarily when in either of these positions.
Product Advantages
Safe and Reliable Structure: Armored withdrawable and metal-enclosed compartment design helps prevent fault propagation, while the complete five-prevention interlock system ensures safe operation.
Strong Electrical Performance: Suitable for 40.5kV systems, with strong breaking capacity, broad parameter coverage, and stable operating performance.
Convenient and Efficient Maintenance: The withdrawable circuit breaker truck can be pulled out for convenient inspection, installation, and replacement.
High Versatility and Expandability: Compatible with various protection devices and circuit breakers, and can be flexibly arranged into single-busbar, sectionalized, and other power distribution schemes.
Good Environmental Adaptability: The cabinet offers high structural strength and excellent heat dissipation, making it suitable for substations, industrial plants, mining enterprises, and other high-voltage applications.
Operating Conditions
Ambient Temperature: -10°C to +40°C.
Altitude: ≤1000m.
Relative Humidity: Daily average ≤95%, monthly average ≤90%.
Seismic Intensity: Not exceeding 8 degrees.
Installation Site: Indoor installation only, free from fire hazard, explosion risk, corrosion, severe pollution, and strong vibration.
Application
The KYN61-40.5 type switchgear is mainly used in indoor substations, power plants and industrial and mining enterprises with a voltage of 40.5kV (35kV). It is responsible for receiving, distributing and protecting electrical energy.
Model meaning
Technical Parameters
Overall and mounting dimensions(mm)（Reference）
Model meaning
| KYN61-40.5(Z) Armored Withdrawable Type AC Metal-Enclosed Switchgear | K: | Armored metal-enclosed switchgear |
| Y: | Withdrawable (draw-out type) | |
| N: | Indoor use | |
| 61: | Design series number | |
| 40.5: | Rated voltage 40.5kV (35kV system) |
Technical Parameters
| Technical Parameter | Unit | Specification |
|---|---|---|
| Rated Voltage | kV | 40.5 (for 35kV power systems) |
| Rated Frequency | Hz | 50 |
| Main Busbar Rated Current | A | 1250 / 1600 / 2000 |
| Rated Short-Circuit Breaking Current | kA | 25 / 31.5 |
| Rated Short-Time Withstand Current (4s) | kA | 25 / 31.5 |
| Rated Peak Withstand Current | kA | 63 / 80 |
| Rated Short-Circuit Making Current | kA | 63 / 80 |
| 1 min Power Frequency Withstand Voltage | kV | 95 (phase-to-phase / phase-to-ground) |
| Lightning Impulse Withstand Voltage | kV | 185 (peak) |
| Protection Level | — | Enclosure: IP4X; Circuit breaker compartment door open: IP2X |
| Control Circuit Voltage | V | DC 110/220; AC 110/220 |
| Overall Dimensions (W × D × H) | mm | 1400 × 2800 × 2600 |
Overall and mounting dimensions(mm)（Reference）
Custom XGN61‑40.5 High‑Voltage Metal‑Enclosed Switchgear Solutions for Your Project
(The values can be customized according to local project requirements.)
If you have specific requirements for the parameters, structure, or configuration of the XGN61‑40.5 high‑voltage metal‑enclosed switchgear, please contact us. Our team of account managers, technical engineers, and product consultants will assess your system design, rated specifications, installation conditions, operational needs, and project deadline to provide a tailored solution that aligns with your application scenario.
We can customize the rated voltage (up to 40.5 kV), rated current capacity, short‑circuit withstand levels, busbar scheme, circuit breaker type and mechanism, withdrawable or fixed configuration, compartment layout, enclosure protection grade, interlocking systems, and other key design details to ensure reliable performance, safety, and maintainability in your medium‑voltage power distribution system. This flexibility allows the switchgear to meet the exact demands of power plants, substations, industrial and mining facilities, commercial buildings, and other critical infrastructure projects where control, protection, and distribution of electrical energy are essential.
FAQ
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