High Voltage Isolator Switch

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French Standard Gang Operated Air Break Switches IACM

Product Name:
French Standard Gang Operated Air Break Switches IACM
Model Number:
IACM
Brand:
SMICO
Supply Ability:
5000pcs/month
Voltage:
24kv/36kv
Color:
Gray
Packaging Details:
Export packing

French Standard Gang Operated Air Break Switches IACM

French Standard Gang Operated Air Break Switches IACM is used in electric power system with rated frequency 50/60Hz, rated voltage 12/36kV. Its main for making or breaking circuit under line supplying voltage in outdoor high voltage distribution system equipments. Thereof anti-pollution type disconnect switch is especially used in serious polluted area. It accords with standards of IEC62271-103: High voltage switches.

French Standard Gang Operated Air Break Switches IACM

Service environment

a)Air temperature: Maximum temperature: +75℃; Minimum temperature:-45℃
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

Features and benefits

•Compact design
•All steel parts either in stainless steel or hot-dip galvanized
•Solid and stable base frame
•Main contact with icing protection
•Insulators available in porcelain or alternatively in silicone
•Minimal sag for the line-connection thanks to the two fixed terminals
•Completely maintenance antirust AL alloy -Arc chamber
•Switching-off procedure without external arc
•Short circuit making capacity under specific conditions possible
•Fixing on the supporting structure either by clamping (free setting) or screwing (holes in the base frame)
•Easy on-site installation and setting
•High reliability: up to 1’000 cycles (depending on the making current)
•All conducting parts either silver, nickel or tin-plated
•Practically maintenance-free

Designation Mechanical characteristics

SO-IACM-24KV-50A

A
(mm)

B
(mm)

C
(mm)

D
(mm)
Creepage(HTV Insulator)
(mm)
Number of skirts
(HTV Insulator)
Approximate weight
(Kg)
Reference On isolated Special On isolated Special On isolated Special
On isolated Special
695

695

650

740

884

1020

9

11

80

81
11450 11412
Rated current in continuous service  (A) Rated breaking capacity  (A) Rated short-term admissible current (rms) (kA) (1s) Rated closing capacity on short circuit  ( Crete)(kA) Tension assigned
(kV)
Dry lightning impulsewithstand voltage(kV) Frequency
(Hz)
400 50 12.5 31.5 24 125 50
Designation Mechanical characteristics

SO-IACM-24KV-100A

A
(mm)

B
(mm)

C
(mm)

D
(mm)

H
(mm)
Creepage(HTV Insulator)(mm) Number of skirts (HTV insulator) Approximate weight(Kg)
Reference On isolated Special On isolated Special On isolated Special
On isolated Special
695

695

650

740

640

884

1020

9

11

87

88
14842 14840
Rated current in continuous service  (A) Rated breaking capacity  (A) Rated short-term admissible current (rms) (kA) (1s) Rated closing capacity on short circuit  ( Crete)(kA) Tension assigned
(kV)
Dry lightning impulsewithstand voltage(kV) Frequency
(Hz)
400 100 12.5 31.5 24 125 50

Isolating Switch 

An electrical device for the reliable disconnection of certain sections of a high-voltage electrical network when there is no current in them. The use of isolating switches (either alone or in combination with high-speed short-circuiting devices) makes it possible to simplify the arrangement of switching points and transformer substations and to eliminate expensive high-voltage circuit breakers.

In the case of damage to certain sections of a network, the circuit breakers operate first, and then the isolating switches automatically disconnect the damaged section, after which the circuit breakers close again and restore electric power to the rest of the consumers on the network. Isolating switches are also used to disconnect and reconnect unloaded transformers and sections of power lines during operation. An isolate switch must provide a reliable connection in case of a random occurrence of a short circuit in the network. An important characteristic of an isolating switch is a short operate time, particularly the disconnect time, which must not exceed 0.1 sec.

 

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