Cabinet metalclad 24kv,modular units 24kv

Specifications 1.20 years ring mian unit manufacturer

2.Easy installation

3.Less maintance

4.Safe and upgradeable

5.11kV/22kV/33kV offer

Ring Main Unit  Description   XGN series ring main unit are applicable for Mining Enterprise, residential building, high-rise buildings and schools, parks and so on power distribution system. It is used as AC three-phase 10KV,50HZ ring main power supply units and terminal power distribution device. It can be used in the system of 50HZ,3.6-12kV and making and breaking of load current and short-circuit current ,controlling and protecting.    Normal operating conditions  Ambient air temperature:
1) less than or equal to 40°C
2) less than or equal to 35°C on average over 24 hours
3) greater or equal to –5°C.
Altitude
1) less than or equal to 1000 m
2) above 1000 m, a derating coeffi cient is applied (please consult us).
Solar radiation
1) no solar radiation infl uence is permitted.
 Ambient air pollution
1) no signifi cant pollution by dust, smoke, corrosive and/or fl ammable gases,
vapours or salt.
 Humidity
1) average relative humidity over a 24 hour period, less than or equal to 95%
2) average relative humidity over a 1 month period, less than or equal to 90%
3) average vapor pressure over a 24 hour period, less than or equal to 2.2 kPa
4) average vapor pressure over a 1 month period, less than or equal to 1.8 kPa.
For these conditions, condensation may occasionally occur. Condensation can be
expected where sudden temperature changes occur in periods of high humidity.
To withstand the effects of high humidity and condensation, such as breakdown of
insulation, please pay attention on Civil Engineering recommendations for design
of the building or housing, by suitable ventilation and installation.   Thechnical Data

Item		Unit	Data
Rated  Voltage		KV	12/24
Rated Lighting impulse withstand voltage	Alternate and reactive	KV	75/125
	Breaking		85/145
1 min power frequency withstand voltage	Alternate and reactive	KV	42/65
	Breaking		48/79
Rated frequency		HZ	50/60
Rated  Current	Main busbar	A	1250/630
	Branch busbar		1250/630
Rated short time withstand current	Major loop	KA	20/3S
	Ground loop		20/2S
Rated peak withstand current		KA	50
Transfer current		A	1700/800
Grade of protection			IP3X
Mechanical life of load switch		Time	2000
Mechanical life of earthing switch		Time	2000

  
Cetification   ISO9001:2008     ABB authorized certificate   Schnieder authorized certificate     Ordering Instructions
The purchaser should supply following information for ordering.
a. Scheme of primary circuit
b. Types and specifications of electric components in the Switchgear;
c. Material quality and specifications of main bus bar and branch bus bar (according to the manufactory’s standards if not specified);
d. Schematic diagram of small wiring or standard schematic diagram, miniature bus bar array diagram and terminal diagram;
e. Coating color of switchgear;
f. Names and quantity of spare parts
g. Please negotiate with the manufacturer on special requirements.            We are always at service,welcome to consult us anytime!

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