The electrical interlocking of the circuit breaker, two incoming cabinets and one interconnection ca

Generally, this is an electrical three-take two-interlock, if one of the switches is in the exit position (not in the experimental position and the working position), if there is an incoming switch to close, the other switch is unable to close!!

In fact, in the two sections of the power plant, in normal operation, the three switches are in the working position, and it is impossible for one of them to be in the experimental position and the exit position; If in the experimental position and exit position, then the interlock has no meaning, because even if there is an interlock, it is also a white interlock, if a period of power loss, the interlock is cast, the contact switch is closed, but the contact switch is in the experimental position at this time, the switch is closed, but the lower mouth of the contact switch will not be electrified, so at this time a period is still lost in the case of the interlock. So it is useless, so it is not necessary to set up an electrical interlock in the disconnected position.

If you must set up interlocking, you have to change it to the manufacturer, because when the circuit breaker is in the exit position, all the points are not moving (that is to say, it is originally a closed point, and it is disconnected when it is connected to the external test), and it will only be normal when the experimental position and the working position are used, so only if the manufacturer changes this to a closed point when the exit position is also closed, it is OK.

But it's really not necessary, I think as long as you make it clear to someone the customer understands, there must be no problem. Talking to people who don't understand is playing the piano to the cow, it's useless, find someone who has the right and understands. Good luck!

When the incoming cabinet is closed, the bus cabinet must be disconnected. (with 3 locks and 2 keys).

The inlet cabinet is closed, 2 is disconnected, and the bus cabinet must be closed.

The incoming cabinet is closed, and 1 is disconnected, and the bus cabinet must be closed.

There are two frame circuit breakers in the two incoming cabinets, how to interlock with the contact cabinets.

Hello dear<>

An interlocking relay is installed in each incoming cabinet, and the normally open contacts of the two interlocking relays are connected in series to the control loop of the contact cabinet. When the frame circuit breaker of any inlet cabinet leaks or trips, the interlock relay contact of the inlet cabinet is disconnected, resulting in the disconnection of the control loop of the contact cabinet and the interlocking with the contact cabinet is realized. 2.

This is achieved using two interlocks with one interlock relay. An interlock is installed in each incoming cabinet, and the output of the two interlocks is connected to the trigger coil of an interlock relay. The normally open contacts of the interlock relay are connected to the control loop of the contact cabinet.

When the frame circuit breaker of any inlet cabinet trips, the interlock of the inlet cabinet outputs an enable signal, triggers the interlock relay to engage, disconnects the control loop of the contact cabinet, and realizes the interlocking command. 3.This is achieved using optocouplers and interlock relays.

An optocoupler is installed in each incoming cabinet, and the output of the two optocouplers is connected to the trigger coil of the interlock relay. When the frame circuit breaker of any inlet cabinet trips, the output of the optocoupler of the inlet cabinet triggers the interlock relay to engage and disconnect the control loop of the contact cabinet to achieve interlocking. 4.

Logic interlocks are implemented using PLC or relay control loops. Detect the status of the frame circuit breaker of the two incoming cabinets, program the logic interlock algorithm in the rubber seepage PLC or relay control loop, and immediately disconnect the contact cabinet control loop once any circuit breaker is detected to realize software-level interlocking.

Summary. Is there an electrical latching contact for the closing back span of the vacuum circuit breaker in the contact cabinet? ∴？

Hello dear, there is, the electrical locking is achieved by the locking electromagnet and the chassis car auxiliary switch and the closing circuit series locking solenoid micro switch, to ensure that the handcar can not be electric and manual closing during the propulsion process. Mechanical locking refers to the mechanical interlocking parts linked with the chassis car reproduction, and his function is that the handcart can not be pushed out in the closing state, and the handcart cannot be closed during the propulsion process. Hope it helps.

I wish you good health and a happy life!

Is there an electrical latching contact for the closing back span of the vacuum circuit breaker in the contact cabinet? Is there an electrical latching contact for the closing back span of the vacuum circuit breaker in the contact cabinet? ∴？

Hello dear, there is, the electrical locking is achieved by the locking electromagnet limb and the chassis auxiliary switch and the closing circuit series locking solenoid micro switch, to ensure that the handcar can not be electric and manual during the propulsion process. Mechanical locking refers to the mechanical slip interlocking parts linked to the chassis car copy, and his role is that the handcart can not be pushed out in the closing state, and the handcar cannot be closed during the propulsion process. Hope it helps.

I wish you good health and a happy life!

Hello dear, the following is the relevant information: the working principle of vacuum circuit breaker: when the short circuit, the magnetic field generated by the high current (generally 10 to 12 times) overcomes the reaction rebound, the tripper pulls the operating mechanism to act, and the switch trips instantaneously.

When overloaded, the current becomes larger, the heat is added to the car, and the bimetal sheet is deformed to a certain extent to push the action of the rental resistance mechanism (the larger the current, the shorter the action time), I hope it can help you. I wish you good health and a happy life!

Is there an electrical latching contact for the closing back span of the vacuum circuit breaker in the contact cabinet? ∴

We are glad to answer for you: Is there an electrical locking contact for the closing and relapsing of the vacuum circuit breaker in the contact cabinet? A:

Pro, some electrical locking is realized by the large judgment of the locking solenoid and the auxiliary switch of the chassis car and the series locking solenoid micro switch of the closing circuit to ensure that the handcar can not be electric and manual closing during the propulsion process. The machine is good imitation pure mechanical locking refers to the mechanical interlocking parts linked with the chassis car copy, his role is that the handcart can not be pushed out in the closing state, and the handcart cannot be closed during the propulsion process.