LELHK11-1-52-10.0-91-V Circuit Protection

Series:	LEL
Part Status:	Active
Lead Free Status / RoHS Status:	--
Breaker Type:	Magnetic (Hydraulic Delay)
Moisture Sensitivity Level (MSL):	--
Current Rating:	10A
Number of Poles:	2
Actuator Type:	Lever
Illumination:	--
Illumination Voltage (Nominal):	--
Mounting Type:	Panel Mount

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Introduction to Circuit BreakersA circuit breaker is an electrical switching device designed to protect an electrical circuit from overcurrent, overload, and short circuit. Circuit breakers are one of the important components in the modern electrical system, which is employed in AC or DC power-distribution systems, usually between units in a substation and end-user equipment. LELHK11-1-52-10.0-91-V Application Field and Working PrincipleThe LELHK11-1-52-10.0-91-V circuit breaker is a high-performance, medium-voltage AC-DC switching device suitable for use in various industrial, commercial, residential, motor vehicle, and railway applications. It is capable of breaking and disconnecting 12 kV and 17.5 kV and is in compliance with all applicable standards and regulatory requirements. The main components of the LELHK11-1-52-10.0-91-V circuit breaker are the arc-chamber, shutters, current-limiter, oil receiver, and cleaning equipment. The arc-chamber is the heart of the circuit breaker, and is a sealed pressure chamber where the current arc is established and contained. The shutters are used to provide insulation between the live parts of the armature and the load, and to protect the user from coming in contact with the live elements of the device. The current-limiter ensures that the current is limited to the rated level and helps to prevent any damage to the system in the event of an overload. The oil receiver maintains the atmospheric pressure inside the arc-chamber and is also used for cooling the assemblage. The cleaning equipment is used to maintain the cleanliness of the arc-chamber to ensure it operates efficiently. The LELHK11-1-52-10.0-91-V circuit breaker is designed to protect the electrical power system from damage caused by short-circuits, overloads, and ground faults. It is capable of providing automatic opening and closing operations of the AC and DC main-circuits, thereby providing a reliable level of protection. The working principle of the circuit breaker is based on the principle that the oil stored within the arc-chamber produces an arc when it is subjected to a high current. This arc is then extinguished when the current drops below a certain level. When a fault occurs in the electrical system, the breaker detects the fault by monitoring the current in the system. If the current exceeds the threshold set for a specific type of fault, then the breaker trips and its internal switches open, thereby disconnecting the load from the power supply. After the fault has been cleared, the breaker can be reset manually or automatically, depending on the type of breaker and on the settings programmed into it. ConclusionThe LELHK11-1-52-10.0-91-V circuit breaker is a versatile, high-performance device suitable for use in a variety of applications. It is designed to quickly detect short-circuits, overloads, and ground-faults and offers protection from damage to the electrical system caused by these events. The breaker works on the principle that the oil contained in the arc-chamber produces an arc when subjected to a high current, and this arc is extinguished when the current drops below a certain level.

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