Sf6 Lbs Full Closed Substation F Electric Open Mechanism

Min.Order: 1

Product origin: Wenzhou, Zhejiang, China

Infringement complaint:

Complaint

US$ 80

Description

1.Product description

Gas insulated ring main unit is for the secondary distribution network 11/17.5/24/36 kV. It is a completely sealed system with a stainless steel tank containing all live parts and switching functions. A sealed steel tank with constant atmospheric conditions ensures a high level of reliability as well as personnel safety and a virtually maintenance-free system.

It offers a choice of either switch-fuse combination or circuit-breaker with relay for protection of the transformer. SafeRing can be supplied with an integrated remote control and monitoring unit.

2.Service environment:
a) Air temperature:Maximum temperature: +40ºC; Minimum temperature:-25ºC
b) Humidity:Monthly average humidity 95%; Daily average humidity 90% .
c) Altitude above sea level:Maximum installation altitude: 2500m
d) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
e) No frequent violent shake
f)SF6 pressure:1.4bar
g) Gas leakage year rate:0.2‰/year
h)Ip range:IP67
i)Thickness of gas stainless steel tank is 3.00mm
j)Bus is 400mm2 Cu,Bus earthing is150mm2Cu

3. Modularization design
The modular design scheme is adopted. The basic modules are load switch module, combined electrical module and other special function modules.Any combination of these modules forms a common box structure, in which any one function is roughly the same as the internal structure of the basic module

4.Standards

IEC 62271-100 high voltage alternating current circuit breakers
IEC 62271-105: alternating current switch-fuse Combination
IEC 62271-102: alternating current disconnectors and earthing switches
IEC 62271-200 A.C. metal enclosed switchgear and controlgear for rated voltage above 1 kV and up to and including 52 kV
IEC 62271-103 high voltage switches for rated voltage above 1 kV and less than 52 kV
IEC 60694: Common specifications for high-voltage switchgear and controlgear standards

5. Flexible exit and extension mode
All modules can realize the connection mode of side outgoing line and side expanding line or outgoing line and top expanding line according to the customer's requirements, so as to meet the demand of power supply scheme to the greatest extent

6.The main technical date

Item	Unit	Switch	Switch-fuse	Vacuum circuit-breaker
Rated voltage	kV	24	24	24
Power frequency withstand voltage	kV	50	50	50
Impulse withstand voltage	kV	125	125	125
Rated current	A	630	2001)	200
Breaking capacities:
active load	A	630
closed loop	A	670
off load cable charging	A	141
off load transformer	A		20
earth fault	A	160
earth fault cable charging	A	91
short-circuit breaking current	kA		see 2)	16
Making capacity	kA	40	see 2)	40
Short time current 0,5 sec	kA			16
Short time current 1 sec	kA			16
Short time current 3 sec	kA	16

1) Depending on the current rating of the fuse-link
2) Limited by high voltage fuse-links

SF6 Full metal closed ring main unit swich and mechanism

NO.	Name	Description
1	Circuit Break+Isolator switch	Three positions
2	Circuit Break+Isolator switch	Two positions
3	SF6 gas insulated substation earthing switch
4	SF6 gas insulated substation load break	Three positions
5	SF6 gas insulated substation load break,	Two positions
6	Spring Mechanism	Substation C manual mechanism
7	Spring Mechanism	Substation C electric mechanism
8	Spring Mechanism	Substation C electric mechanism(with secend wires)
9	Spring Mechanism	Substation F manual mechanism
10	Spring Mechanism	Substation F electric open mechanism
11	Spring Mechanism	Substation F electric mechanism
12	Spring Mechanism	Substation F electric mechanism(with secend wires)
13	Spring Mechanism	Substation V manual mechanism with isolator
14	Spring Mechanism	Substation V electric mechanism with isolator
15	Spring Mechanism	Substation V electric mechanism with isolator(with secend wire)

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