Mini Substation Outdoor 40.5kV SF6 Gas Circuit Breaker IEC Standard

Outdoor 40.5kV SF6 Gas Circuit Breaker

Quick Detail: Mini Substation IEC Standard Outdoor 40.5kV SF6 Gas Circuit Breaker

The GHS type of stored energy and free release mechanical operating mechanism allows opening and closing operations through local and remote control. The operating mechanism, the activating kinematics of the moving contacts and the anti-condensation heater are located inside a tight metal enclosure which also acts as the

support for the poles. The above-mentioned structure is supported by a frame made of telescopic metal sections

which allow the height of the circuit-breaker terminal to be adapted from 2800 mm to 3700 mm.

The metal enclosure has IP 54(*) degree of protection and is fitted with a tight door with an inspection window.

The circuit-breaker is compact and ensures a high level of sturdiness and excellent mechanical reliability.The

enclosure is made out of a steel plate with adequate surface protection by a special metalising and painting

process. The support structures are hot dip galvanised.

 

Main Contact Separation:
No electric arc is struck because the current flows through the arcing contacts. During its run downwards, the moving apparatus compresses the gas in the lower chamber. The compressed gas flows from the lower to the upper chamber. hereby taking both the chambers to the same pressure.

Arcing Contact Separation:
The current flows due to the electric arc which has struck between the arcing contacts. The gas cannot escape through the nozzle because the hole is still closed by the fixed arcing contact and cannot even escape through the inside of the arcing contact, because of the clogging effect of the electric arc.

No.	Item	Unit	Data
1	Model		GCB-12/24		GCB-36		GCB-40
2	Standards		IEC 62271-100
3	Rated voltage	kV	12/24		36		40.5
4	Rated Frequency	Hz	50-60		50-60		50-60
5	Rated Normal Current	A	1250	2500	1250	2500	1250	2500
6	Rated Breaking Capacity	kA	25/31.5	25/31.5	25/31.5	25/31.5	25/31.5	25/31.5
7	Rated Short Time Withstand Current(3s)	kA	25/31.5	25/31.5	25/31.5	25/31.5	25/31.5	25/31.5
8	Making Capacity	kA	63/80	63/80	63/80	63/80	63/80	63/80
9	Operation Sequence		O-0.3S-CO-15s-CO
10	Opening Time	ms	45+10		45+10		45+10
11	Arcing Time	ms	10-15		10-15		10-15
12	Total Breaking Time	ms	55-60		55-60		55-60
13	Closing Time	ms	75+10		75+10		75+10
14	SF6 Gas Absolute Pressure	kPa	380		380		550
15	Tropicalisation		IEC: 60068-2-30, 721-2-1
16	Electromagnetic Compatibility		IEC: 60694, 61000-6-2, 61000-6-4

Standards And Service:

The GCB circuit-breakers comply with the IEC 62271- 100 standard as well as of other major industrialised countries. They have undergone the tests indicated ensure service safety and reliability of the apparatus in alll installationsThe mechanical and electrical locking devices have been provided to prevent incorrect operations and to carry out nspection of the installations while guaranteeing maximum operator safety.

Packaging & Delivery:

Workshop: 

Shipping: 

1. Specific packaging can be made to order.
You can specify other shipping methods such as Airmail, FEDEX or DHL. We shall let you know about the

shipping cost after receipt of your order.And also can send by sea or air, kindly send me the port of yours.
The standard procedure for making wooden case is as follows:

Technical Support
Technical support on pre-sales stage. DINGLI has own survey and engineering company with more than 100

engineers. We have special pre-sales engineer to work with customer at early stage of the project.
 

Site assistance
Site assistance in Latin American market, so far we have sales and service center in Spain, Chile, Bolivia, Peru,

Ecuador, Senegal, which will make a fast response for customer.

Customer Visit
Clients of Bolivia visited Dingli for factory inspection, we talked about the key issues faced right now, and found

ways to solve it together. They set a high value on this cooperation.