Overview
The KYN28-12(Z) AC metal armored switchgear produced by RUY Power is suitable for three-phase AC rated voltage 12kV, rated frequency 50Hz power system, used for receiving and distributing electric energy and for controlling, protecting and monitoring the circuit.
The product complies with:
GB3906-2006 “3.6-40.5kV AC Metal-Enclosed Switchgear and Control Equipment”
GB11022-89 “General Technical Conditions for High-Voltage Switchgear”
IEC298(1990) “AC Metal-Enclosed Switchgear and Control Equipment with Rated Voltage Above 1kV and Below 50kV”
DL404-97 “Technical Conditions for Ordering Indoor AC High-Voltage Switchgear”
Normal Operating Environment
1. Ambient air temperature: maximum temperature +40℃, minimum temperature -15℃;
2. Humidity: daily average relative humidity ≤ 95%; daily average water vapor pressure not exceeding 2.2kPa; monthly average relative humidity ≤ 90%; monthly average water vapor pressure not exceeding 1.8kPa;
3. Altitude: 1000m and below;
4. Earthquake intensity: not more than 8 degrees;
5. The surrounding air shall not be polluted by corrosive or combustible gases, water vapor, etc.;
6. No violent vibration places;
7. When used beyond the normal conditions specified in GB3906, users and RUY Power shall negotiate.
Functions and Features
The switchgear is designed according to the armored metal-enclosed switchgear in GB3906-91. The whole is composed of the cabinet body and the trolley-type removable parts (i.e. the trolley) (see figure). The cabinet is divided into four separate compartments, and the shell protection grade is IP4X. The protection grade of each compartment and circuit breaker chamber door is IP2X when opened. It has overhead incoming/outgoing lines, cable incoming and outgoing lines and other functional schemes. After arrangement and combination, a complete set of power distribution system devices is formed. The switchgear can be installed, debugged and maintained from the front, so it can be backed against the wall, double-row arrangement and cabinet installation, which improves the safety and flexibility of the switchgear and reduces the floor area.
Main Technical Parameters of Vacuum Circuit Breaker
| Item | Unit | Value |
|---|---|---|
| Rated voltage | kV | 3.6、7.2、12 |
| Rated frequency | Hz | 50 |
| Breaker rated current | A | 630、1250、1600、2000、2500、3150 |
| Switchgear rated current | A | 630、1250、1600、2000、2500、3150 |
| Rated short-time withstand current (4S) | kA | 16,20,25,31.5,40,50 |
| Rated peak withstand current (peak value) | kA | 40,50,63,80,100,125 |
| Rated short-circuit breaking current | kA | 16,20,25,31.5,40,50 |
| Rated short-circuit making current (peak value) | kA | 40,50,63,80,100,125 |
| Rated insulation level | 1min power frequency withstand voltage kV | 24、32、42 |
| Lightning impulse withstand voltage kV | 40、60、75 | |
| Protection grade | The shell is IP4X, when the compartment and circuit breaker chamber door are opened, it is IP2X。 |
Installation Dimensions
| Cabinet Width A | Cabinet Depth B | L1 | L2 | L3 | L4 |
|---|---|---|---|---|---|
| 800 | 1500 Cable | 530 | 630 | 150 | 490 |
| 800 | 1660 Overhead | 530 | 630 | 310 | 650 |
| 800 | 1500 Cable | 730 | 830 | 150 | 490 |
| 1000 | 1660 Overhead | 730 | 830 | 310 | 650 |
| Dimension | Condition | Value (mm) |
|---|---|---|
| Height | 2300 | |
| Width | Rated current 1250A and below | 800 |
| Rated current 1600A and above | 1000 | |
| Depth | Cable incoming/outgoing | 1500 |
| Overhead incoming/outgoing | 1660 |
Switchgear Structure Parts List
A. Busbar chamber; B. Circuit breaker trolley chamber; C. Cable chamber; D. Relay instrument chamber;
1. Shell; 2. Branch busbar; 3. Bushing; 4. Main busbar; 5. Static contact; 6. Static contact box; 7. Current transformer; 8. Earth switch; 9. Interphase partition; 10. Lightning arrester;
11. Voltage transformer; 12. Trunking; 13. Bottom plate; 14. Control circuit board; 15. Secondary plug; 16. Circuit breaker trolley; 17. Air vent; 18. Tray operating mechanism; 19. Secondary protection; 20. Footplate; 21. Lifting device.
Frequently Asked Questions
What is the rated voltage of the KYN28-12(Z)?
The KYN28-12(Z) AC Metal Armored Switchgear operates at 12 kV, suitable for the intended distribution application.
Does the KYN28-12(Z) support OEM / ODM orders?
Yes. RUY Power provides custom branding, packaging and configuration for the KYN28-12(Z) AC Metal Armored Switchgear to meet project requirements.
What standards does the KYN28-12(Z) comply with?
The KYN28-12(Z) AC Metal Armored Switchgear is designed and type-tested in accordance with GB3906-2006 and IEC 60298.
What is the lead time for the KYN28-12(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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