I. Overview

KYN28A-12 (Z) armored withdrawable AC metal enclosed switchgear (hereinafter referred to as "switchgear") is suitable for three-phase AC 50Hz power systems, used for receiving and distributing electrical energy and controlling, protecting, and monitoring circuits. This product complies with the standards: GB3906 "3-35kV AC Metal Enclosed Switchgear", GB/T11022 "Common Technical Requirements for High Voltage Switchgear and Control Equipment", IEC60298 "AC Metal Enclosed Switchgear and Control Equipment with Rated Voltage of 1kV and Above".

II. Terms of Use

1. Surrounding air temperature: maximum temperature+40 ℃, minimum temperature -15 ℃;

2. Relative humidity: Daily average relative humidity: ≤ 95%, daily average water vapor pressure not exceeding 2.2KPa; monthly average

Relative humidity ≤ 90%; The monthly average water vapor pressure shall not exceed 1.8KPa;

3. Altitude: ≤ 1000m;

4. Earthquake intensity: not exceeding magnitude 8;

5. The surrounding air should not be significantly polluted by corrosive or flammable gases, water vapor, etc;

6. Places without severe vibration;

7. When used beyond the normal conditions specified in GB3906, the user and our company shall negotiate.

III. Structural characteristics

1. All metal modular assembly structure, the cabinet is made of imported aluminum zinc coated plate with strong anti-corrosion ability, without surface treatment. It is processed by CNC high-precision equipment and adopts advanced multiple folding technology. The connection is made with rivet nuts and high-strength bolts, with high precision, light weight, and good strength.

2. The switchgear can be equipped with vacuum circuit breakers such as VS1 series, VD4 series, ZN65 series, etc., with wide adaptability and strong interchangeability. The handcart is equipped with a working position, a testing position, and positioning and display devices at each position, ensuring safety and reliability.

3. The cable room can accommodate up to 9 single core cables, and the equipment has reliable mechanical and electrical interlocking devices, fully meeting the "five prevention" requirements. Each room is equipped with a pressure relief channel to ensure personal safety during operation.