Schneider Dual Power Switch Product Description The switch uses a series of circuit breakers or load switches from Schneider Electric Equipment Company as the actuating element, and is equipped with a new control mechanism that drives electromechanical double interlocking. It is especially suitable for use in Important power supply locations that do not allow power outages.
In order to meet the needs of the site, the automatic transfer switch can realize three different working modes: automatic switching, self-resetting, self- switching, non-resetting and mutual backup
Mainly suitable for commercial buildings, postal and telecommunications, mines, ships, military machinery, fire elevators
Industrial assembly lines and other occasions that require uninterrupted power supply, as an important electrical device to ensure continuous power supply.
Product functions: automatic power switching and overload short circuit protection, etc.
Product performance switching time delay is adjustable, accurate action time
Product features: strong interference ability, high precision, good anti-corrosion performance, reliable power supply
/> The product structure is small in size, compact in structure, short in flashover, and high in breaking
Electrical level
Number of product poles
Product frame
Product current
Number of series Level level level
Schneider dual power switch product details
It consists of two three-pole or four-pole molded case circuit breakers and their accessories, auxiliary alarm contacts, mechanical interlocking transmission mechanism, intelligent controller, etc. It is divided into two structures: integral and split. The integral type means that the controller and actuator are installed on the same base. The split type means that the controller is installed on the cabinet panel. The actuator is installed on the base and is installed in the cabinet by the user. The controller and actuator take about Long cable connection.
★There are reliable mechanical interlocking devices and electrical interlocking protection between the two circuit breakers, which completely eliminates the possibility of closing the two circuit breakers at the same time.
★The intelligent controller uses a single-chip microcomputer as the control core, with simple hardware, powerful functions, easy expansion, and high reliability
★It has short-circuit and overload protection functions, overvoltage, undervoltage, and phase loss automatic conversion functions and intelligent Alarm function
★Automatic conversion parameters can be freely set externally
★With intelligent protection function for operating motor
★This device is equipped with a fire control circuit. When the fire control center gives a control signal, it enters the intelligent Controller, both circuit breakers enter the open state
★There is a computer network interface for realizing four remote functions such as remote control, remote adjustment, remote signaling and telemetry.
Working principle of Schneider dual power switch
When the common power supply is normal and the function key is placed in the automatic position, the backup circuit breaker is closed separately from the common circuit breaker to protect the load connected to the common power supply. When the voltage of one or three phases of the common power supply is interrupted, the load is converted from the common power supply to the backup power supply. When the backup power supply has normal voltage
When the common power supply returns to normal, the backup power supply is converted to the common power supply
br/> It has small size, simple structure, easy operation and long service life, all available
The switch conversion drive adopts a single motor to drive smoothly, noise-free and small impact force
It has mechanical interlocking and electrical interlocking, and the conversion Reliable, manual and automatic conversion are possible
Commonly used backup circuit breakers can have different rated currents
Schneider dual power switch operating procedures
When the power is outage for any reason and the power supply cannot be restored within a short period of time, it must Enable backup power. Steps
① Cut off the circuit breakers of the mains power supply, including the circuit breakers of the control cabinet in the power distribution room. In the dual power switching box, pull the double-throw anti-reverse switch of the city power supply breaker to the side of the self-prepared power supply to maintain dual power switching. The self-contained power supply circuit breaker in the box is open.
② Start the backup power supply. When the standby unit is operating normally, sequentially close the circuit breakers in the generator air switch self-contained power supply control cabinet.
③Close each backup power circuit breaker in the power switching box one by one to deliver power to each load. ④ During the operation of the backup power supply, the operating personnel on duty are not allowed to leave the generator set, and they must make timely adjustments according to changes in load, and deal with any abnormalities in a timely manner.
When the mains power is restored, power supply work should be done promptly, backup power supply should be restored, and the mains power supply should be restored.
Steps
① Disconnect the circuit breakers of the self-contained power supply one by one in order. The order is: dual power switching box, self-contained power circuit breaker, self-contained power distribution cabinet, each circuit breaker, generator master switch, double-throw switch Dial to the mains power supply side.
②Stop the diesel engine according to the steps to stop the diesel engine.
③In order, close each circuit breaker from the main power supply main switch to each branch switch one by one, and put the dual power switching box from the mains power supply circuit breaker to the closed position.
Check whether the indicators and indicator lights are normal, and start the cooling fan in the transformer. Basic classification Dual power automatic transfer switch, hereinafter referred to as dual power, uses two major types: molded case circuit breaker and load switch. The following are two product introductions
Type dual power automatic transfer switch level 10,000 high type
Dual power automatic switch level 10,000 high type
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Dual power supply automatic switch level 10,000 high isolation type
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■ Standard
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"Low-voltage switchgear and control equipment Part 6 Schneider Automatic Switch Equipment and electrical appliances》
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"Low-voltage switchgear and control equipment Schneider automatic switchgear and electrical appliances"
■ Features of Schneider automatic switchgear
■Three optional working modes
○Auto-turn-on and self-recovery working mode
○Mutual backup working mode
○Auto-turn-on and non-self-recovery working mode
■Three stable working positions
○Common power supply and standby power supply
○Common power supply is divided into standby power supply
○Common power supply is divided into standby power supply
■Use category, motor load or mixed load including motor resistive load and the following white light load.
■Small size, simple structure, beautiful appearance, specifications, easy operation, and long service life. Both pole and pole switches are available.
■The switch switching drive adopts a single motor drive, with a simple structure, reliable, smooth switching, no noise, and small impact force.
■The switch is equipped with electromechanical interlocking protection to ensure that Schneider automatic switching devices work reliably and do not interfere with each other.
■The switch can switch automatically with load. In emergency, the handle can be used for manual switching.
■Features compared with similar products from other companies
○The breaking capacity of the controller protection fuse is 1, which improves the safety of power distribution.
○An interlock is added between manual and automatic operation modes to ensure that manual operation is not possible under automatic conditions.
○The Schneider automatic switch device does not switch when the circuit breaker handle is broken and the contacts are bonded or the load fails, overloads and short circuits, truly realizing electromechanical interlocking.
The escapement of the driving mechanism of the ○ type Schneider automatic switch device is changed from a fork type to a concave type, which solves the problem of the extended handle breaking and closing out of synchronization, restores the quick closing and quick breaking function, and effectively improves the mechanical life of the product.
○Provides misconnection protection. When the user connects the neutral wire and the live wire of the power supply reversely, an audible and visual alarm will be issued, which improves the reliability of the equipment.
WATSNA-400A