Air-break switches for high tension without arc-extinguishing or arc-preventing means (in combination with high tension or heavy-current switches with arc-extinguishing or arc-preventing means H 01 H 33/00; switching arrangements for the supply or distribution of electric power H 02 B) [3]
31
/
02
•
Details
31
/
04
•
•
Interlocking mechanisms (for interlocking with high-tension or heavy-current switches having arc-extinguishing or arc-preventing means H 01 H 33/52)
31
/
06
•
•
•
for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
31
/
08
•
•
•
for interlocking two or more parts of the mechanism for operating contacts
31
/
10
•
•
•
for interlocking two or more switches (for interlocking with high-tension or heavy-current switches having arc-extinguishing or arc-preventing means H 01 H 33/52
)
31
/
12
•
•
Adaptation for built-in fuse
31
/
14
•
with bridging contact that is not electrically connected to either line contact in open position of switch
31
/
16
•
•
with angularly-movable bridging contact or contact-carrying member
31
/
18
•
•
•
actuated through the movement of one or more insulators
31
/
20
•
•
•
•
at least one insulator being rotatable about its own geometrical axis
31
/
22
•
•
•
wherein the contact or contacts are rectilinearly movable with respect to the carrying member
31
/
24
•
•
with rectilinearly-movable bridging contact
31
/
26
•
with movable contact that remains electrically connected to one line in open position of switch
31
/
28
•
•
with angularly-movable contact
31
/
30
•
•
•
actuated-through the movement of one or more insulators
31
/
32
•
•
with rectilinearly-movable contact
31
/
34
•
with movable contact adapted to engage an overhead transmission line, e.g. for branching
31
/
36
•
•
Contact moved by pantograph
33
/
00
High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
33
/
02
•
Details
33
/
04
•
•
Means for extinguishing or preventing arc between current-carrying parts (for switches in general H 01 H 9/30)
33
/
06
•
•
•
Insulating body insertable between contacts
33
/
08
•
•
•
Stationary parts for restricting or subdividing the arc, e.g. barrier plate
33
/
10
•
•
•
•
Metal parts
33
/
12
•
•
•
Auxiliary contacts on to which the arc is transferred from the main contacts (using arcing horns H 01 H 33/20
)
33
/
14
•
•
•
Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
Means for preventing discharge to non-current-carrying parts, e.g. using corona ring
33
/
26
•
•
Means for detecting the presence of an arc or other discharge
33
/
28
•
•
Power arrangements internal to the switch for operating the driving mechanism
33
/
30
•
•
•
using fluid actuator
33
/
32
•
•
•
•
pneumatic
33
/
34
•
•
•
•
hydraulic
33
/
36
•
•
•
using dynamo-electric motor (for storing energy in a spring motor H 01 H 33/40)
33
/
38
•
•
•
using electromagnet (for storing energy in a spring motor H 01 H 33/40)
33
/
40
•
•
•
using spring motor
33
/
42
•
•
Driving mechanisms
33
/
44
•
•
Devices for ensuring operation of the switch at a predetermined point in the ac cycle (circuit arrangements H 01 H 33/59)
33
/
46
•
•
Interlocking mechanisms
33
/
48
•
•
•
for interlocking between casing or cover and mechanism for operating contacts
33
/
50
•
•
•
for interlocking two or more parts of the mechanism for operating contacts
33
/
52
•
•
•
for interlocking two or more switches
33
/
53
•
•
Cases (for switchgear H 02 B 1/26); Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices [3]
33
/
55
•
•
•
Oil reservoirs or tanks; Lowering means therefor (associated with withdrawal mechanism for isolation of switch
H 02 B 11/08)
33
/
56
•
•
•
Gas reservoirs
33
/
57
•
•
•
Recuperation of liquid or gas
33
/
575
•
•
•
Pressure relief devices for normal or emergency use [3]
33
/
58
•
•
•
Silencers for suppressing noise of switch operation [3]
33
/
59
•
•
Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
33
/
60
•
Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
33
/
62
•
•
wherein the break is in air at atmospheric pressure, e.g. in open air
33
/
64
•
•
wherein the brake is in gas (in air at atmospheric pressure H 01 H 33/62
; vacuum switches H 01 H 33/66)
33
/
66
•
•
Vacuum switches
33
/
68
•
•
Liquid-break switches, e.g. oil-break
33
/
70
•
Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
33
/
72
•
•
having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
33
/
73
•
•
•
wherein the break is in air at atmospheric pressure, e.g. in open air
33
/
74
•
•
•
wherein the break is in gas (in air at atmospheric pressure H 01 H 33/73)
33
/
75
•
•
•
Liquid-break switches, e.g. oil-break
33
/
76
•
•
wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor
33
/
77
•
•
•
wherein the break is in air at atmospheric pressure
33
/
78
•
•
•
wherein the break is in gas (in air at atmospheric pressure H 01 H 33/77)
33
/
80
•
•
flow of arc-extinguishing fluid from a pressure source being controlled by a valve
33
/
82
•
•
•
the fluid being air or gas
33
/
825
•
•
•
•
with closed circuit of air or gas (H 01 H 33/835 takes precedence) [3]
33
/
83
•
•
•
•
wherein the contacts are opened by the flow of air or gas
33
/
835
•
•
•
•
•
with closed circuit of air or gas [3]
33
/
84
•
•
•
the fluid being liquid, e.g. oil
33
/
85
•
•
•
•
wherein the contacts are opened by the flow of liquid
33
/
86
•
•
the flow of arc-extinguishing fluid under pressure from the contact space being controlled by a valve
33
/
867
•
•
•
the fluid being air or gas [3]
33
/
873
•
•
•
•
with closed circuit of air or gas [3]
33
/
88
•
•
the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
33
/
90
•
•
•
this movement being effected by, or in conjunction with, the contact-operating mechanism
33
/
91
•
•
•
•
the arc-extinguishing fluid being air or gas
33
/
915
•
•
•
•
•
with closed circuit of air or gas [3]
33
/
92
•
•
•
•
the arc-extinguishing fluid being liquid, e.g. oil
33
/
94
•
•
•
this movement being effected solely due to the pressure caused by the arc itself or by an auxiliary arc
33
/
95
•
•
•
•
the arc-extinguishing fluid being air or gas
33
/
96
•
•
•
•
the arc-extinguishing fluid being liquid, e.g. oil
33
/
98
•
•
the flow of arc-extinguishing fluid being initiated by an auxiliary arc or a section of the arc, without any moving parts for producing or increasing the flow
