Remotely Operated Circuit Breakers are electrical devices that control electrical circuits using a remote control system. They are operated by one or more AC sources. These devices may operate a wide range of voltages, including AC, DC, and momentary positive and negative AC. Several models offer different functions and are available with a variety of polarities.
Powerlink intelligent lighting control systems
LynTec Remotely operated circuit breakers are an excellent choice for controlling loads in industrial, institutional, and commercial facilities. By switching branch circuits off during periods of inactivity or peak demand, these systems reduce utility costs. They can be activated by external signals such as low-voltage wall switches, photocells, or access systems. They can also be installed inside a standard lighting panelboard.
The POWERLINK AS circuit breaker has a 24 Vdc motor and highly effective Squared trip mechanism. This motor allows the circuit breakers to remotely open or close contacts when the handle is in the on position. The switch also allows for remote programming in a single event.
Schneider Electric is a leading global provider of integrated solutions for energy management and automation. The company’s POWERLINK intelligent lighting control systems make it easy to control and monitor lighting and circuits without requiring physical access. They are also designed to plug into Squared panelboards without the use of wiring harnesses or pigtails.
CBS ArcSafe remote switch operators
Whether you have a single circuit breaker or hundreds of outlets to control, a CBS ArcSafe remote switch operator will do the job. The remote switch actuator attaches to the front of the circuit breaker and is mechanically assisted. This means that there is no need to modify the switchgear. The remote switch operator is also portable, and can be controlled using a radio remote control.
The RSO-IV remote switching operator is designed for use with CBS ArcSafe RRS-3 Single-use Remote Racking Systems. Its high-torque motor operates the switchgear at the same speed as a human operator, reducing fatigue and the amount of time spent inside the arc-flash boundary.
A remote switch operator is an important safety tool because it allows service personnel to operate circuit breakers from a safe distance. They can be used in conjunction with the CBS ArcSafe remote racking system or separately. The remote switch operator comes with a wired/wireless pendant station and 24V DC power supply. If you have a SecureConnect safety system, the SecureConnect Remote Operator can help you operate it from up to 300 feet away.
Improved electromagnetic operating mechanism
An improved electromagnetic operating mechanism for remotely operated circuit breakers has been developed to eliminate some of the hazards faced by operators of circuit breaker apparatus. These hazards can include electrocution, shock, and sparks. This improved mechanism reduces the number of components, as well as maintenance requirements, by about half. It also improves the service life of the circuit breaker.
Generally, remote control circuit breakers are connected to a motor or electronic overload relay. In these units, functions that are normally performed by an operator can be performed automatically, such as opening or closing circuit breakers. The system can also remotely reset circuit breakers. For example, an E300 electronic overload relay can be connected to a 100-C contactor or a 140-U motor protection circuit breaker.
This improved mechanism is similar to thermal motor protection relays and is subject to the same standards as those used for motor protection. When a thermal overload occurs, the thermal overcurrent release will trip the latch of the circuit breaker, open the main contacts, and reset the bimetals. These circuit breakers also have an improved electrical trip mechanism, which can be adjusted to a specific value and can be integrated into a control system.
Electrothermal trip mechanism
The electrothermal trip mechanism of remotely operated circuit breakers can be used in the absence of a conventional mechanical resetting device. It has two parts: a movable contact arm and a trip mechanism. The movable contact arm acts to shift into the break position when a fault current is detected. The bimetal also provides an overload trip mechanism. When the arc is blown into the quench chamber, it activates the trip mechanism.
When in the open position, the tripping mechanism 140 has a smaller gap than in the tripped position. When in the tripped position, the gap between the contact and the movable contact is larger than in the closed position. The movable contact is located at the load terminal 199, while the stationary contact 105 is connected to the line terminal 110. If the tripping mechanism is triggered, electricity can flow from the line terminal 110 to the load terminal 199. The tripping mechanism can also be reset manually using a handle 160.
This trip mechanism actuates the movable contact arm 22 by providing high-speed displacement of the contact arm. In such a case, the spring 38 can no longer overcome the force of the spring 84. Therefore, the movable contact arm moves from the closed position 125 to the second open position 200. However, when the handle 88 is in the open position, it latches the hook 64. This mechanism prevents the circuit breaker from operating again unless it is swung back into the reset position.
