Product Overview
The KYN61-40.5(Z) metal-clad draw-out AC metal-enclosed switchgear (hereinafter referred to as the switchgear) is an indoor complete power distribution device with three-phase AC 50 Hz and rated voltage of 40.5 kV, used for receiving and distributing electric energy in power plants, substations and industrial & mining enterprises. It controls, protects and monitors the circuit, and can also be used in places with frequent operations.
This switchgear complies with GB/T11022-1999, GB3906-1991, DL404-1997 and other standards.
Type Designation
Service Conditions
- Ambient air temperature: maximum +40℃, minimum -15℃.
- Relative humidity: daily average ≤95%,
- daily average water vapor pressure not exceeding 2.2 kPa;
- monthly average relative humidity ≤90%,
- monthly average water vapor pressure not exceeding 1.8 kPa;
- Altitude: below 1000 m.
- Seismic intensity: not exceeding degree 8.
- The surrounding air shall not be obviously polluted by corrosive or combustible gases, water vapor, etc.
- Places without violent vibration.
- For use beyond the normal conditions specified in GB3906, it shall be negotiated between the user and the manufacturer
Structural Features
- The cabinet adopts an assembled structure, and the circuit breaker adopts a floor-mounted truck structure;
- Equipped with a brand-new composite-insulation vacuum circuit breaker featuring good interchangeability and easy replacement;
- The truck frame is fitted with a lead-screw nut propulsion mechanism, which can easily move the truck and prevent damage to the propulsion structure by misoperation;
- All operations can be performed with the cabinet door closed;
- The interlocks among the main switch, truck and cabinet door all adopt mandatory mechanical locking, meeting the "five-prevention" functions;
- The cable compartment is spacious and can connect multiple cables;
- The fast earthing switch is used for earthing and circuit short-circuiting;
- Enclosure protection class IP3X; with the truck compartment door open, protection class IP2X;
- The product complies with GB3906-1991 and DL404-1997 and adopts IEC-298 by reference.
The KYN61-40.5(Z) metal-clad draw-out AC metal-enclosed switchgear adopts an assembled cabinet and floor-mounted truck structure, with all interlocks of mandatory mechanical locking, fully meeting the "five-prevention" requirements.
Main Technical Parameters of the Vacuum Circuit Breaker
| Item | Unit | Value |
|---|---|---|
| Rated voltage | kV | 40.5 |
| Rated frequency | Hz | 50 |
| Rated power-frequency withstand voltage | kV | 95/1min |
| Rated lightning impulse withstand voltage | kV | 185 |
| Rated current | A | 1250 1600 2000 |
| Rated short-time withstand current | kA | 20 25 31.5 |
| Rated short-time breaking current | kA | 20 25 31.5 |
| Rated peak withstand current | kA | 50 63 80 |
| Rated duration of short circuit | ms | 4 |
| Opening time | ms | 30 ≤ t ≤ 60 |
| Closing time | s | 50 ≤ t ≤ 100 |
| Number of rated short-circuit breaking operations | operations | 20 |
| Mechanical endurance | operations | 10000 |
| Protection class | - | IP43 |
Main Technical Parameters of the Vacuum Switchgear
| Item | Unit | Value |
|---|---|---|
| Rated voltage | kV | 40.5 |
| Rated current | A | 1250 1600 2000 |
| Rated frequency | Hz | 50 |
| Rated short-time withstand current | kA | 20 25 31.5 |
| Rated peak withstand current | kA | 50 63 80 |
| Rated power-frequency withstand voltage | kV | 95/1min |
| Rated lightning impulse withstand voltage | kV | 185 |
| Rated duration of short circuit | s | 4 |
| Protection class | - | IP3X |
The rated current of the KYN61-40.5(Z) metal-clad draw-out AC metal-enclosed switchgear in the table covers 1250 A, 1600 A and 2000 A, meeting distribution needs of loads with different capacities.
Outline Dimensions
| - | - | (mm) |
|---|---|---|
| Height | 2650 | |
| Width | Rated current 1600 A and below | 1400 |
| Depth | Cable incoming/outgoing | 2870 |
| - | Overhead incoming/outgoing | 2950 |
Main Technical Parameters of the Spring Operating Mechanism
| Item | Unit | Value | |
|---|---|---|---|
| Rated operating voltage | Opening coil | V | DC220/110, AC220/110 |
| Closing coil | |||
| Rated operating current | Opening coil | A | 0.96(220V), 1.05(110V) |
| Closing coil | |||
| Energy-storage motor power | W | 230 | |
| Rated voltage of energy-storage motor | V | DC220/110, AC220/110 | |
| Energy-storage time | S | ≤ 12 | |
Installation of the Switchgear
Switchgear installation foundation diagram
a. Height of the apparatus room: ≥4500 mm;
b. Distance from the rear of the cabinet to the wall: ≥1500 mm;
2 c. Flatness of the foundation frame: ≤1 mm/m;
d. The embedded channel steel of the foundation shall not exceed 3 mm above the ground;
e. It can be fixed on the foundation by bolts or welding;
f. The switchgear weighs about 1800 kg;
g. Operating corridor width of the switchgear (single row): ≥3000 mm;
Double-sided (face to face): ≥4000 mm.
Equipment Structure Diagram
Related Products
High-voltage switchgear of the same series and other types available:
- KYN28A-12 Metal-clad Draw-out Enclosed Switchgear
- XGN66-12(Z) Fixed Enclosed Switchgear
- XGN15-12 Box-type Fixed AC Metal-enclosed Switchgear
- HXGN-12 Box-type Fixed AC Metal-enclosed Switchgear
- HXGN17-12 Box-type Fixed AC Metal-enclosed Switchgear
- SRM-12 Fully Enclosed Fully Insulated Gas-insulated Ring Main Unit
