KYN28A-12 Indoor Removable Metal-clad Switchgear

NegotiableUpdate on October 14

Model

Nature of the Manufacturer: Other

Product Category: Medium Voltage Switchgear

Place of Origin: City, Province

Online Consult Contact Information

Overview

KYN28A-12 Indoor Removable Metal-clad Switchgear

Product Details

Product Introduction

KYN28A-12 indoor removable metal-clad switchgear is a cubicle switchboard of three-phase AC 50Hz single bus and sectionalized single-bus system with the voltage range of 3.6kV to 12kV. It is mainly used in power plants, industrial and mining enterprises, secondary substations of electric power system, and large HV motor starting equipment for control, protection and monitoring. The switchgear conforms to IEC 62271-200, GB 3906-2006 and other standards. Equipped with perfect "five-anti" interlocking device and VSV series and ZNZ series vacuum circuit breaker, the switchgear is in fact a kind of distribution apparatus with superior performance.

Product Features

1. The body structure is spliced with AI-Zn-plated steel sheet, which underwent repeated edge forces.

2. All equipment can be operated when the cabinet door is closed.

3. The cabinet housing is fully sealed to prevent sundries and pests and its protection degree is IP4X. Besides, the protection degree of handcart compartment, busbar compartment, cable compartment and relay instrument compartment is IP2X.

4. Simple and effective locking can prevent misoperation. The perfect "five-anti" interlocking device provides reliable safety protection for equipment operators.

5. The circuit breaker can be replaced in a quite simple manner with interchangeable handcarts. VSV and imported VD4 vacuum circuit breaker are provided.

6. The vacuum circuit breaker and its operating mechanism in the high-pressure compartment need only a little maintenance.

7. The solid-sealed circuit breaker not only guarantees the insulation performance, but also improves the operating environment for the circuit breaker.

8. The cabinet can be installed against the wall to save space.

9. The secondary line is fastened in the wiring duct of large size, which is easy to connect.

10. The cable compartment adopts composite insulation technique by adding the insulated heat shrinkable tube to ensure the insulating property of phase to phase and phase to earth.

11. The mid-set structure provides large space for the cable compartment connected to multi-cables.

12. The installation of cable compartment can be easily observed through the panel inspection window.

13. The cable compartment and secondary instrument compartment are independently fitted with grounding busbar with good contact with the cabinets.

14. The product conforms to IEC 298, GB 3906-2006 and other standards.

Technical Parameters

Item			Unit	Parameter
Rated Voltage			kV	12
Rated Insulation Level	Rated Short-time Power-frequency Withstａnd Voltage	Phase to Phase, Phase to Earth	kV	42
		Isolating Distance, Vacuum Distance		48
	Rated Lightning Impulse Withstａnd Voltage(Peak)	Phase to Phase, Phase to Earth		75
		Isolating Distance, Vacuum Distance		85
	Auxiliary Loop & Control Loop			2 / 2.5
Rated Frequency			Hz	50
Rated Voltage (Auxiliary Loop & Control Loop)			V	DC110、220；AC110、220
Rated Current			A	630 1250	1250	2500 3150 4000	2500 3150 4000	4000 5000
Rated Short-circuit Breaking Current			kA	31.5	40	31.5	40	50
Rated Short-circuit Making Current				80	100	80	100	125
Rated Peak Withstａnd Current (Major Loop)				80	100	80	100	125
Rated Short-time Withstａnd Current (Major Loop)				31.5	40	31.5	40	50
Rated Short-time Withstａnd Current (Ground Loop)				27.4	34.8	27.4	34.8	43.5
Rated Peak Withstａnd Current (Ground Loop)				69.6	87	69.6	87	109
Phase Spacing			mm	210±1		275±1
Rated Short-circuit Duration	Major Loop		s	4
	Ground Loop		s	2
Internal Arc Rating			/	IAC：AFLR 31.5kA 0.5s
Protection Degree	Enclosure		/	IP4X
	Compartment		/	IP2X
Category for Operational Continuity Loss			/	LSC2B
NOTE: The phase spacing is around 210mm and 275mm.