HXGN16-12Air-insulated Ring Main Unit (RMU), Fixed Type

HXGN16-12 box-type fixed metal-enclosed switchgear (hereinafter referred to as “Ring Main Unit”) is suitable for AC 50Hz, 10Kv network as a breaking load and short-circuit and short-circuit and closing short-circuit current. The ring main unit is equipped with manual and electric spring mechanism to operate the vacuum circuit breaker switch, and the grounding switch and isolation switch are equipped with manual operation mechanism.

Usage environment

1. The upper limit of the ambient temperature is +40°C, the lower limit is -25°C
2. The altitude is not more than 10000m
3. The daily average relative humidity is not more than 95%, and the monthly average is not more than 90%; the daily average water vapor is not more than the monthly average
4. The surrounding air is not corrosive or obviously polluted by flammable gases, water vapor, etc.
5. No frequent severe vibration
Model and meaning

Technical Parameter
Structural characteristics
Structural diagram
Configuration diagram

Technical Parameter

No.	Item			Unit	Data
1	Rated voltage / Maximum operating voltage			kV	10/12
2	Rated current			A	1250
3	Main busbar current	Incoming cabinet		A	1250
		Outlet cabinet			1250
4	Rated short-time withstand current			A	31.5
5	Rated short-circuit duration			s	4
6	Rated peak withstand current			kA	50
7	Rated short-circuit closing current			kA	50
8	Rated active load breaking current			A	1250
9	Closed-loop interrupting current			A	1250
10	Rated cable charging current			kA	31.5
11	The grounding switch is rated to withstand current when short-circuited			kA	31.5
12	The duration of the ground switch when it is rated for a short circuit			s	4(2)
13	The grounding switch is rated for peak withstand current			kA	50
14	The grounding switch is rated for short-circuit closing current			kA	50
15	1min rated power frequency withstand voltage		Inter-phased, relative, vacuum load switch breaks	kA	42
			Isolating switch break		48
16	Rated lightning impulse withstand voltage		Inter-phased, relative, vacuum load switch breaks	kA	75
			Isolating switch break		85
17	Institutional life		Vacuum load switch	Times	10000
			Grounding switch (knife), Isolating switch (knife)		2000
18	AC current			A	3150

Structural characteristics

Structural diagram

图片2.png

Configuration diagram

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HXGN16-12Air-insulated Ring Main Unit (RMU), Fixed Type

Usage environment

Model and meaning