Outdoor 33kv 800kVA 33/0.4kv Compact Transformer Substation Distribution Box Switchgear/Switchboard

• Customization: Available
• Certification: CCC, ISO9001
• Shell Material: Steel Plate
• Model NO.: YB
• Voltage Level: Medium Voltage
• Installation: Removable
• Structure: Box Transformer
• Current: AC
• Rated Frequency: 50/60Hz
• Rated Current: 400,630,1250A
• Transfer Current: 1200-3150A
• Rated Short Circuit Breaking Current: 25,31.5ka
• Transport Package: Nude
• Trademark: DGG
• Origin: China
• HS Code: 853720900
• Production Capacity: 100sets/Year

Product Description

Photos of Product

Electrical power transmission and distribution experts in china

General

This substation has 3 main compartments, that is:
The transformer compartment,
High/Medium Voltage Switchgear Compartment and
Low Voltage Switchgear Compartment.

High Voltage & Low Voltage compartments are with completed function.

1. High Voltage compartment has various power supply methods when testing power supply at 1 time, it also can be installed with High Voltage testing appliances to reach the demand of High Voltage testing.  

2. The transformer compartment can use S7, S9, S11, or other low-loss oil-immersed transformers, or dry transformers.  The transformer compartment has automatic start wind cooling systems and lighting systems.

3. Low voltage compartment can be made according to users' need, it adopts fixed or assembled structure to be electrical power supply system, it has many functions like light distribution, power distribution, reactive power, electrical power testing..etc to improve the power distribution quality and satisfy the user.

This substation is a very important power distribution and supply unit in the electrical cable power net. It is a kind of completed set of power supply with High Voltage controlling, protection and converting, distribution.. it is used in 3 phase AC 50Hz and rated current max 1600KVA transformer. It is widely used in industrial and mining enterprises, residential quarters, hospitals, malls, high-rise buildings, and other distribution systems.
For this substation, we mainly produce & export 11KV, 15KV,20KV,24KV, and 33KV types.
For customized special type, once we get clear technical data or single line diagram(SLD), we also can make it.

Ambient Environment

1. Ambient temperature: -25ºC~+40ºC
2. Altitude: less than1000m
3. Relative humidity
Daily average less than 95% Average value of water vapor pressure less than 2.2kpa
Monthly average less than 90% Average value of water vapor pressure less than 1.8kpa
4. Seismic intensity: less than magnitude 8
5. Outside wind speed less than 35m/s
6. Apply to places that have no fire, no explosion danger, and no chemical corrosion 


Technical Data
 

	Item	Unit	Parameter
High Voltage Unit	Rated frequency	Hz	50/60
	Rated Voltage	kV	6.6	11	33
	Max service voltage	kV	7.2	12	36
	Rated current	A	400,630,1250
	Transfer current	A	1200-3150
	1min power frequency withstand voltage to earth and phase to phase /Fracture	kV	42/48,85/95
	BIL: to earth and phase to phase /Fracture	kV	75/85,170/185
	Rated short circuit breaking current	kA	25,31.5
Transformer Unit	Rated Voltage	kV	6,11,33
	Rated Capacity	kVA	30-2000
	Tap ranging	%	+/-2x2.5%,+/-5%
	Vector Group		Yyn0,Dyn11
	Impedance	%	4,4.5,6,8
Low Voltage Unit	Rated Voltage	V	220,380,690,800
	Main circuit rated current	A	50-4000
	Branch current	A	5-800
Enclosure	Protection Level		HV Room:IP33 Transformer Room:IP23 LV Room:IP33
	Noise level	dB	≤50