Kyn28 Series Medium Voltage Switchgear Withdrawable Air Insulated Metal Clad Switchgear Ring Main Unit Rmu

• Certification: ISO9001
• Shell Material: Stainless Steel
• Voltage Level: High Voltage
• Installation: Fixed
• Structure: Floorstanding
• Current: AC
• Model NO.: KYN28
• Transport Package: Wooden Case
• Trademark: GRENO
• Origin: Xiamen, China
• Production Capacity: 5000PCS/Year

Product Description

Product Description

GRENO's KYN28 series medium voltage switchgear is an air insulated switchgear with a withdrawable vacuum circuit breaker, with a rated voltage of 10-40.5kv. Mainly used for power transmission of small and medium-sized generators in power plants, distribution of power to factories and mining enterprises, and receiving and transmitting power to power system substations, as well as starting large high-voltage motors, to control, protect, and monitor the system. In addition to being compatible with domestic VS1 vacuum circuit breakers, it can also be used in conjunction with ABB's VD4, Siemens' domestic ZN65A's 3AH5, GE's VB2, etc. It is a high-performance distribution device.

Key Features:

• Central metal-clad and metal-enclosed design
• Utilizes advanced manufacturing techniques from home and abroad
• Compatible with various types of old metal-enclosed switchgears

Benefits:

• Enhanced reliability and safety
• Improved efficiency and performance
• Easy replacement of outdated switchgears

Operating Conditions

No.	Description	Requirement
1	Ambient air temperature	-10ºC ~ +40ºC
2	Daily average saturated vapor pressure	≤ 2.2×10mpa
3	Monthly average saturated vapor pressure	≤ 1.8×10mpa
4	Daily average relative humidity	≤95%
5	Monthly average relative humidity	≤90%
6	Altitude	≤1000m
7	Anti-seismic intensity	≤ 8°
7	No fire, explosion, danger, severe contamination, chemical corrosion and violent vibration.

Techincal Satisfaction1

item		Unit	Parameters
rated voltage		KV	7.2 /12
rated current		HZ	50
rated current of circuit breaker		A	630\2000
rated current of switch cabinet		A	630\2000
rated current of dynamic stability (4S)		KA	16\20\25\31.5\40\50
rated current of dynamic stability (peak)		KA	40\50\63\80\100\125
rated short circuit drop-out current		KA	16\20\25\31.5\40\50
rated short circuit making current (peak)		KA	40\50\63\80\100\125
Rated insulation level	1min power frequency withstand voltage	KA	24	32	42
	lighting impulse withstand voltage	KA	40	60	75
protection degree	IP2X shell: IP4X, it is IP2X when compartment and circuit breaker room is open

Techincal Satisfaction2

Serial No.	Item		Unit	Technical parameters
1	Rated voltage		KV	24
2	Rated frequency		HZ	50/60
3	Rated insulation level	1 min withstand voltage (effective value)	KV	Phase to phase & phase to earth	60	Isolation fracture	79
		Lighting impulse withstand voltage (peak  value)			125		145
		Auxiliary control circuit power frequency  withstand voltage	V	2000
4	Rated current		A	630,1250,1600,2000,2500,3150
5	Specified short-circuit dropout current		KA	20, 25, 31.5
6	Rated short-circuit making current (peak  value)		KA	50, 63, 80
7	Rated short time withstand current (4S)		KA	20, 25, 31.5
8	Rated peak withstand current		KA	50, 63, 80
9	Auxiliary control circuit rated voltage		V	AC or DC 110/220
10	Protection level		V	IP4X (the circuit breaker chamber door is  open or isolation chamber is IP2X)
11	Outline dimension		mm	1000*1910*24001
12	Weight		Kg	840-1500

 

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FAQ
1. How long is the warranty period?
Normally 12 months warranty period.
1. What payment term do you accept?
 T/T,west union and others upon request.
4.How to place order?
Please send us your detailed requirements.
3.How about type test?
Our client passed type test in Europe, and we also type tested in China.