Yubai New Electric
Provide design and consultation for power transmission and distribution solutions
Consultation Hotline:
15050262118
Product overview
KYN28-12 (GZS1) 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. The newly introduced and developed high current and high breaking switch equipment can also be used separately as an outlet for high-voltage generators.
This product complies with the standards: GB3906 '3-35kV AC Metal Enclosed Switchgear', GBIT11022 'Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards', IEC298 'AC Metal Enclosed Switchgear and Control Equipment with Rated Voltage above 1kV and below 52kV'.
Model Meaning
Main technical parameters
| 项目 | 单位 | |||
| 额定电压 | kV | 3.6、7.2、12 | ||
| 额定频率 | HZ | 50 | ||
| 断路器额定电流 | A | 630、1250、1600、2000、2500、3150、4000 | ||
| 开关设备额定电流 | A | 630、1250、1600、2000、2500、3150、4000 | ||
| 额定短时耐受电流(4s) | KA | 16、20、25、31.5、40、50 | ||
| 额定峰值耐受电流(峰值) | KA | 40、50、63、80、100、125 | ||
| 额定短路开断电流 | KA | 16、20、25、31.5、40、50 | ||
| 额定短路关合电流(峰值) | KA | 40、50、63、80、100、125 | ||
| 额定绝缘水平 | 1min工频耐受电压 | 极间、极对地间 | kV | 24、32、42 |
| 断口间 | kV | 24、32、48 | ||
| 雷电冲击耐受电压(峰值) | 极间、极对地间 | kV | 40、60、75 | |
| 断口间 | kV | 46、70、85 | ||
| 俚棟蛒儇护等级 外壳为IP4X，隔室间、断路器室门打开时为IP2X。 | ||||
Note:
1. The short-circuit capacity of current transformers should be considered separately:
2. The technical parameters of ZN63A-12 are detailed in the corresponding sample.
3. The rated current of the 1000m altitude type is less than 1250A, and the rated breaking current is less than 31.5kA.
normal condition
1. Surrounding air temperature: maximum temperature+40 ℃, minimum temperature -15 ℃
2. Humidity conditions:
Daily average relative humidity:< 95%，
The daily average water vapor pressure shall not exceed 2.2kPa;
Monthly average relative humidity: ≤ 90%，
The monthly average water vapor pressure shall not exceed 1.8kPa.
3. Altitude: 1000m and below.
4. Seismic intensity: not exceeding 8 degrees.
5. The surrounding air should not be significantly polluted by corrosive or flammable gases, water vapor, etc.
6. Places without frequent and intense vibrations.
7. When used under normal conditions beyond those specified in GB3906, it shall be negotiated between the user and the manufacturer.
Structural characteristics
1、
Structure of switchgear (see figure below).
2. All metal assembly, modular assembly structure.
3. The cabinet is made of imported aluminum zinc coated steel sheet, processed by FMS flexible processing system using advanced multiple folding technology, connected with rivet nuts and high-strength bolts, with high precision, corrosion resistance, light weight, high strength, and strong universality.
4. Can be equipped with ZN63A-12 (VS1) series or imported VD4 series vacuum circuit breakers, with wide applicability, high reliability, and maintenance free.
5. The handcart is equipped with working and testing positions, each with positioning and display devices, ensuring safety and reliability.
6. Cars of the same specifications can be freely exchanged, with strong interchangeability.
7. Transported by dedicated transport vehicles, the handcart is easy to operate and flexible.
8. The cable room can accommodate up to 9 single core cables.
9. Reliable mechanical and electrical interlocking devices fully meet the 'five prevention' requirements.
10. The high-pressure chamber has pressure relief channels to ensure personal safety:
11. The face door is equipped with an observation window, which can observe the working status of indoor components
External dimensions
Installation size
