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IEC62271 SF6 Ring Main Unit Switchgear 33kv Gis Switchgear

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IEC62271 SF6 Ring Main Unit Switchgear 33kv Gis Switchgear

IEC62271 SF6 Ring Main Unit Switchgear 33kv Gis Switchgear
IEC62271 SF6 Ring Main Unit Switchgear 33kv Gis Switchgear

Large Image :  IEC62271 SF6 Ring Main Unit Switchgear 33kv Gis Switchgear

Product Details:
Place of Origin: China
Brand Name: KNKONG
Certification: CB,ISO
Model Number: HXGN15
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: USD 6000-15000
Packaging Details: Standard export packaging
Delivery Time: 15 working days
Payment Terms: L/C, T/T
Supply Ability: 50 units/Month

IEC62271 SF6 Ring Main Unit Switchgear 33kv Gis Switchgear

Description
Standards: IEC 62271-1, IEC 62271-200, IEC 62271- 100, IEC 62271-102. IEC 60282-1, IEC 61243-5, IEC 60529, IEC 61869-1, 2, 3 Voltage: 33KV
Current: 1250A Manufactory: KNKONG
High Light:

SF6 Ring Main Unit Switchgear

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33kv Gis Switchgear

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IEC62271 33kv Gis Switchgear

IEC62271 SF6 Ring Main Unit Switchgear 33kv Gis Switchgear

SF6 ring main unit switchgear 11kv Ring Main Unit

Indoor switchgear
SF6 Metal-Clad Enclosed Ring Main Unit
33KV 50/60Hz, 630,1250A
OEM & ODM,Complete equipment
Meet IEC standards
Send us your SLD (Single Line Drawing) or requirements we will quote asap.
Inquire

Product Introduction

Principleedit
The ring network refers to the ring power distribution network, that is, the power supply main line forms a closed loop, and the power supply supplies power to the ring main line, and then distributes power all the way from the main line through the high-voltage switch. The advantage of this is that each power distribution branch can take power from its left main line and its right main line. When the left main line fails, it continues to receive power from the right main line, and when the right main line fails, it continues to receive power from the left main line. In this way, even though the main power supply is single-circuit power supply, However, from each distribution branch, the benefits similar to dual power supply are obtained, thereby improving the reliability of power supply.
The so-called "ring network cabinet" means that each distribution branch is equipped with a switch cabinet (outgoing switch cabinet), and the bus bar of this switch cabinet is also a part of the ring trunk line. In other words, the ring trunk line is composed of the bus bars of each outlet cabinet. Each outlet cabinet is called a "ring network cabinet". In fact, if you take out a ring network cabinet alone, you can't see the meaning of "ring network".
The rated currents of these ring mains are not large, so the high-voltage switch of the ring mains generally does not use a circuit breaker with a complicated structure, but a high-voltage load switch with a high-voltage fuse with a simple structure. In other words, the high-voltage switch in the ring main unit is generally a load switch. The ring main unit uses a load switch to operate the normal current, and a fuse to cut the short-circuit current. The combination of the two replaces the circuit breaker. Of course, this can only be limited to a certain capacity.
Such switchgear can also be used in the distribution system of non-ring network structure, so with the wide application of this switchgear, "ring network cabinet" has jumped out of the category of ring network power distribution and generally refers to load switch The high-voltage switchgear is the main switch.

 

Feature
1. Metal-clad and fully enclosed structure, can prevent dirt and small animals from the entrance.
2. Through the observation windows in the door panel switch position and general condition can be clearly viewed.
3. The door and switch operating handle are mechanically interlocked to ensure the door cannot be opened with the switch closed and the switch cannot be closed with the door open.
4. The switchgear use vacuum switches combined with solid insulation material. This environmentally-friendly technology avoid the uses of SF6 as an insulation gas.
5. Reliable FIVE-PREVENTION interlock can effectively prevent from mal-operation.

 

Technical Data

No. Item Unit Parameter
1 Rated voltage kV 12 24 36
2 Rated frequency Hz 50/60
3 Rated current A 630(1250*)
4

1min Power frequency

withstand voltage

wet kV 38 50 70
dry kV 48 60 85
5 Lightning impulse withstand voltage kV 75 125/150 170
6 Rated short circuit breaking current (peak) kA 80 63 63
7 Rated active load and close circuit breaking current A 63 50 50
8 Rated transferring current A 1700 1200 1200
9 Rated short circuit making current (peak) kA 80 63 63
10 Rated cable(line) charging breaking current A

50 and 10

50/10

11 Cable charge breaking current in earthing fault A 20 20 20
12 Rated withstand current (peak) kA 80 63 63
13 Short time withstand current (2s) kA 25 20 20
14 Mechanism life times 5000 2000 2000

 

Contact Details
Knkong Electric Co.,Ltd

Contact Person: Ken Chan (English)

Tel: 0086 13938551009

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