Overview
The KYN61-40.5(Z) armored removable AC metal-enclosed switchgear (hereinafter referred to as switchgear) produced by RUY Power is a three-phase AC 50Hz, rated voltage 40.5kV indoor complete power distribution equipment. As a power plant, substation and industrial/mining enterprise power receiving and distribution, it is used for circuit control, protection and monitoring, and can also be used in frequent operating places.
This switchgear complies with GB/T11022-1999, GB3906-1991 and DL404-1997 standards.
Normal Operating Environment
1. Ambient air temperature: maximum temperature +40℃, minimum temperature -15℃.
2. Humidity: daily average relative humidity ≤ 95%,
3. Daily average water vapor pressure not exceeding 2.2kPa;
4. Monthly average relative humidity: ≤ 90%,
5. Monthly average water vapor pressure not exceeding 1.8kPa;
6. Altitude: 1000m and below;
7. Earthquake intensity: not exceeding 8 degrees.
8. The surrounding air is not polluted by corrosive or combustible gases, water vapor, etc.
9. No violent vibration places.
10. When used beyond the normal conditions specified in GB3906, users and RUY Power shall negotiate.
Main Technical Parameters of Vacuum Switchgear
| Name | 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 short-circuit breaking current | kV | 95/1min |
| Rated lightning impulse withstand voltage | kV | 185 |
| Rated short-circuit duration | s | 4 |
| Protection grade | IP3X |
Technical Parameters (Continued)
| Name | 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 peak withstand current | kA | 20 25 31.5 |
| Rated peak withstand current | kA | 50 63 80 |
| Rated short-circuit duration | ms | 4 |
| Opening time | ms | 30 ≤ t ≤ 60 |
| Closing time | s | 50 ≤ t ≤ 100 |
| Rated short-circuit breaking times | times | 20 |
| Mechanical life | times | 10000 |
| Protection grade | IP43 |
Installation of Switchgear
Cabinet installation foundation diagram:
1. Height of cable chamber: ≥ 4500mm;
2. Height of cabinet rear channel: ≥ 1500mm;
3. Flatness of foundation channel steel: ≤ 1mm/m;
4. The protruding parts of the foundation channel steel from the ground shall not exceed 3mm;
5. Adjustable reduction bolt mode can be used or fixed on the foundation;
6. Single-row cabinet weight: 1800kg;
7. Cabinet operation channel width (single row): ≥ 3000mm; double row (opposite): ≥ 4000mm.
Overall Dimensions
| Dimension | Condition | Value (mm) |
|---|---|---|
| Height | 2650 | |
| Width | Rated current 1600A and below | 1400 |
| Depth | Cable incoming/outgoing | 2870 |
| Overhead incoming/outgoing | 2950 |
Structure Parts List
A. Instrument chamber; B. Circuit breaker chamber; C. Busbar chamber; D. Cable chamber; E. Small busbar chamber;
1. Escutcheon plate; 2. Cover; 3. Live display; 4. Dehumidifier; 5. Contact box; 6. Secondary plug;
7. Heating device; 8. Current transformer; 9. Earth switch; 10. Insulation partition; 11. Grounding switch; 12. Main busbar; 13. Branch busbar; 14. Bushing; 15. Lightning arrester; 16. Lighting lamp.
Frequently Asked Questions
What is the rated voltage of the KYN61-40.5(Z)?
The KYN61-40.5(Z) Armored Removable AC Metal-Enclosed Switchgear operates at 40.5 kV, suitable for the intended distribution application.
Does the KYN61-40.5(Z) support OEM / ODM orders?
Yes. RUY Power provides custom branding, packaging and configuration for the KYN61-40.5(Z) Armored Removable AC Metal-Enclosed Switchgear to meet project requirements.
What standards does the KYN61-40.5(Z) comply with?
The KYN61-40.5(Z) Armored Removable AC Metal-Enclosed Switchgear is designed and type-tested in accordance with GB/T11022, GB3906 and DL404.
What is the lead time for the KYN61-40.5(Z)?
Standard lead time is 15-30 days depending on configuration and order quantity. Contact RUY Power for a precise delivery schedule.




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