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| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
|---|
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Outdoor AC Gang isolator switch 11KV/400A-33KV/1000A used in 3 phase AC 50/60Hz power circuit, it is used as switching on and switch off at the voltage without load. It apply to IEC 60964: 1996, IEC62271-102:2002.
|
Type |
Unit |
RHB(F)-11 |
RHB(F)-24 |
RHB(F)-33 |
|||
|
Rated Voltage |
KV |
11 |
24 |
33 |
|||
|
Rated Current |
A |
400 |
600 |
600 |
800 |
800 |
1000 |
|
4s Heat Steady Current |
KA |
12.5 |
12.5 |
12.5 |
12.5 |
12.5 |
12.5 |
|
Shock Steady Current |
KA |
31.5 |
31.5 |
31.5 |
31.5 |
31.5 |
31.5 |
|
Impulse Withstand Voltage |
To Earth |
75 |
75 |
125 |
125 |
170 |
170 |
|
Across the isolating distance |
95 |
95 |
145 |
145 |
195 |
195 |
|
|
Power frequency withstand voltage |
To Earth |
38 |
38 |
65 |
65 |
70 |
70 |
|
Across the isolating distance |
42 |
42 |
79 |
79 |
80 |
80 |
|
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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