Year1
- 常熟开关：
- CW1
- 规格：
- CW1
- 型号：
- CW1
Tu
Series intelligent universal circuit breakers are mainly installed in low-voltage distribution cabinets as main switches to control and protect the distribution network. Its technical performance has reached the advanced level of similar products in the world in the 1990s. Comply with low voltage circuit breaker standards.
Conditions for use
The ambient air temperature is ~, and the average value does not exceed (except for special orders)
The altitude of the installation site does not exceed
The relative humidity of the air at the maximum temperature is It does not exceed that there can be higher relative humidity at lower temperatures, the monthly average minimum temperature of the wettest month does not exceed, the monthly average maximum relative humidity of that month does not exceed, and the condensation that occurs on the surface of the product due to temperature changes is considered < br/>The pollution level is level 1.
Introduction to structural features
● Contact system
Each phase contact is installed in an insulated chamber. The contact system adopts a structure of multiple contacts connected in parallel to reduce the inertia of the contact system and ensure the high breaking capacity of the circuit breaker.
● Operating mechanism
It is installed in the center of the circuit breaker and is isolated from the main circuit. The circuit breaker is closed by a spring energy storage mechanism with fast closing speed. The operating mechanism has both electric and manual energy storage closing and opening.
● All accessories are common to the entire series.
● Drawer seat
Shake the handle on the lower beam of the drawer seat to realize the three working positions of the circuit breaker (there are position indicators next to the handle)
●Connect the main circuit and the secondary circuit at the connection position Passed, the isolation board is open at this time
●The main circuit of the test position is disconnected. It is closed and separated by an insulating isolation board, and only the secondary circuit is connected. Necessary action tests can be carried out
●The main circuit and the secondary circuit are all disconnected in the separation position, and the isolation plate is closed at this time
● The withdrawable circuit breaker has a reliable mechanical interlocking device. Only when the connection position and The circuit breaker can be closed only when it is in the test position
● The circuit breaker has a secondary circuit terminal block
● Drawer-type circuit breakers (including the main body and the drawer base) with the same rated current are interchangeable.
Selection of intelligent controllers
Intelligent controllers are divided into the following three types: electronic type, standard type and communication type.
● Basic functions
Overload long delay inverse time protection short circuit short delay inverse time protection short circuit short delay fixed time protection short circuit instantaneous protection ground fault protection function setting function overload alarm function test function current display function automatic Diagnostic function Thermal simulation function Fault memory function Contact loss indication function
● Selection function (user selects when ordering according to needs)
Voltage display function Load monitoring function
● Communication controller realizes bidirectional Transmit various functional parameters, and the communication protocol shall be in accordance with the regulations of the enterprise or negotiated between the user and the enterprise.
Some models are as follows
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