Equipped with 40.5kV solid sealed fixed pole column vacuum circuit breaker, cabinet body is made of aluminum-zinc plate after punching folding, assembled with high strength bolts; the door panel adopts spray processing, the surface is bright and clean, the paint surface is high strength; handcart and cabinet with high precision, handcart pull out easy, strong interchangeability; this switchgear series has good five - prevention function.
KYN61 40.5 steel-clad movable-type AC metal-enclosed switchgear is used in 35kV three-phase AC 50Hz power system, receiving and distributing electrical energy in power plants, substations and distribution rooms of industrial and mining enterprises, with control, protection and monitoring, and other functions.
KYN61 40.5 steel-clad movable-type AC metal-enclosed switchgear meets a series of standards “GB/T3906 3.6 ~ 40.5kV AC metal enclosed switchgear and control equipment”,“GB/T11022 Common technical requirements for high voltage switchgear and control equipment standard”，“Technical conditions for ordering DL/T404 AC high voltage switchgear”，“IEC 62271 High-voltage switchgear and controlgear”.
Ambient air temperature: -15 ℃ ~ +40 ℃
Altitude: 1000m and below;
Humidity conditions:
On average not more than 95%, daily average water vapor pressure not exceeding 2.2KPa;
on average not more than 90%, monthly average water vapor pressure not exceeding 1.8KPa.
Earthquake intensity: not more than 8 degrees;
No obvious corrosive or flammable gases such as contaminated sites.
Note: Out of the normal conditions of use, the user can consult with the company.
| Name | Unit | Technical parameters | |
| Rated voltage | kV | 40.5 | |
| Rated current | Rated main busbar current | A | 630、1250、1600、2000 |
| Rated current of the ancillary circuit breaker | A | 630、1250、1600、2000 | |
| Rated insulation level | 1min power frequency withstand voltage (between poles， on the ground / fracture) | kV | 95/115 |
| Lightning impulse withstand voltage (between poles， on the ground / fracture) | kV | 185/215 | |
| Auxiliary circuit, control circuit power frequency tolerance voltage / 1 min | V | 2000 | |
| Rated frequency | Hz | 50 | |
| Rated short circuit breaking current | kA | 20、25、31.5 | |
| Rated short circuit withstand current/rated short circuit duration | kA/4s | 20、25、31.5 | |
| Rated peak withstand current | kA | 50、63、80 | |
| Rated short-circuit making current | kA | 50、63、80 | |
| Control circuit rated voltage | V | DC：110、220、 AC：110、220 | |
| Dimensions (width x depth x height) | mm | 1400(1200)x2800x2800 | |
| Protection grade | Switch equipment shell | IP41 | |
| Isolation rooms(when the cupboard door open) | IP2X | ||
