General
YFRM6-12 type inflatable switchgear is a completely sealed system while all live parts and switches are installed in a stainless steel shell. The entire switchgear will not be influenced by surroundings, ensuring operational reliability and personal safety, and maintenance-free operation.By combining expandable busbars, any combination can be achieved to realize full modularity. For extended busbar safety insulation and shielding, it is highly reliable and safe. The YFRM6-12 inflatable switchgear can also provide TV-based automation solutions, forming the concept of intelligent switches and minimizing on-site installation and commissioning.
YFRM6-12 ype inflatable swichgear is divided into non-extended standard configuration and extensible standard configuration.It has extremely exceptional flexibility due to the combination of full and half modules and its own scalability. lt has a long life for over 30 years operated under 20 ℃ indoor condition.
Modular design
YFRM is a modular design. The basic module units are load switch modules, combined electrical modules and other special function modules. Any combination of these modules formeda common box structure. In the combination, any function is approximately the same as the internal structure of the basic module.
Normal use condition
I is applicable in the place with high and lowtemperature(-40℃-+40℃), humidity and salt. I can also be used in mine and the place wih high litude. Short term water in 24 hours does not affect the use. Note: If higher altitude, please specify the altiude.
Product standard
● International standard
IEC60056、IEC60298、IEC60129、IEC60420、IEC60265、IEC60694 etc.
● Chinese standard
GB3804、GB3906、GB11022 etc.
Flexible outlet and expansion
All modules of YERM can realize side outlet and side expansion or connection and top extension connection according to users’ requirements. which can meet the needs of power supply scheme to the utmost extent.
Main technical specification
Item |
Unit |
C module |
F module |
V module Disconnect/ Earthing switch |
CB module |
||
Load switch |
Combination appliance |
Vacuum switch |
Vacuum drcuit breaker |
Disconnect/ Earthing switch |
|||
Rated voltage |
KV |
12/24 |
12/24 |
12/24 |
12/24 |
12/24 |
12/24 |
Power frequency withstand vohage |
KV |
45/50 |
42/50 |
42/50 |
42/50 |
42/50 |
42/50 |
lightning impulse withstand vohoge |
KV |
95/125 |
95/125 |
95/125 |
95/125 |
95/125 |
95/125 |
Rated current |
A |
630/630 |
NoteB |
630/630 |
1250/630 |
||
Closed loop breaking current |
A |
630/630 |
|||||
Cable charging breaking current |
A |
135/135 |
|||||
5% Rated active food breaking current |
A |
31.5/- |
|||||
Earthing fault breaking current |
A |
200/150 |
|||||
Breaking current of cable charging |
A |
115/87 |
|||||
during earthing fault |
M |
||||||
Short drcuit breaking current |
KA |
Note2 |
20/16 |
25/20 |
|||
Ability of closing and opening |
KA |
63/52.5 |
Note® |
50/40 |
50/40 |
63/50 |
63/50 |
Short-time withstand current 2s |
KA |
25/- |
|||||
Short-time withstand current 3s |
KA |
-/21 |
20/16 |
20/16 |
25/20 |
25/20 |
|
Mechanical life |
Time |
5000 |
3000 |
5000 |
2000 |
5000 |
5000 |
Note: 1) Depends on the cunent rating of the fuse; 2) Limited by high voltage fuses.