-
Anonymous users2024-02-07The DZ47L is only a leakage tripper, and it cannot be used The DZ47LE is a complete leakage circuit breaker, which is a combination of the DZ47L and a DZ47 circuit breaker.
-
Anonymous users2024-02-06The DZ47L is an electromagnetic residual current circuit breaker, and the DZ47LE is an electronic residual current circuit breaker. The electromagnetic type does not have E, there are few models, and the E-type is basically electronic, accounting for more than 98%.
Delixi's DZ47L, CDL7 is electromagnetic, CHINT NL1-63 is also electromagnetic, and other models are basically electronic.
The electromagnetic type is better and more expensive than the electronic type. Few people in China use electromagnetic type, and many people use it abroad. Foreign Schneider, ABB, and Siemens electromagnetic leakage circuit breakers are very expensive, and second-hand ones cost one or two hundred yuan.
How can you tell if it's electromagnetic or electronic? In addition to with or without the letter E, there is also a method: only connect a live wire at the incoming end, do not connect the neutral line, and carry out a leakage test (the live wire at the outgoing end touches the zero line at the incoming end or the live wire at the outgoing end touches the ground wire), if it can be tripped, it is electromagnetic, otherwise it is electronic, because there is a circuit board (amplifier) in the commonly used electronic leakage protection that needs direct current, if the neutral line is broken and the amplifier fails, even if the leakage will not trip.
The electromagnetic tripping type leakage protector uses the electromagnetic tripper as the intermediate mechanism to trip and disconnect the power supply when the leakage current occurs. The disadvantages of this protector are: high cost and complex manufacturing process requirements.
The advantages are: strong anti-interference and anti-shock (overcurrent and overvoltage impact) ability of electromagnetic components; No auxiliary power supply is required; The leakage characteristics remain unchanged after zero voltage and phase failure.
Electronic leakage protector uses transistor amplifier as an intermediate mechanism, when leakage occurs, the amplifier amplifies and transmits it to the relay, and the relay controls the switch to disconnect the power supply. The advantages of this protector are: high sensitivity (up to 5mA); The setting error is small, the production process is simple and the cost is low.
The disadvantages are: the transistor has weak ability to withstand shocks and poor resistance to environmental interference; An auxiliary working power supply is required (electronic amplifiers generally need a DC power supply of more than ten volts), so that the leakage characteristics are affected by the fluctuation of the working voltage; When the main circuit is out of phase, the protector loses its protection function.
-
Anonymous users2024-02-05DZ47 is a model: DZ47 series miniature circuit breaker (hereinafter referred to as circuit breaker), is a kind of current limiting type high breaking miniature circuit breaker with double protection of overload and short circuit, suitable for AC 50Hz 60Hz, rated voltage 230V 400V, rated current to 63A and below in the circuit, as a line overload and short circuit protection. At the same time, it can also frequently turn on and off electrical devices and lighting circuits under normal conditions.
DZ47LE is what we call a small circuit breaker assembly leakage, that is, a small circuit breaker, which is what we call C45, is assembled together with a leakage tripper, and then riveted. It becomes a DZ47LE leakage circuit breaker.
I saw all of this in a report. China low-voltage electrical network dydq wrote the "China low-voltage electrical industry market, products, benchmarking enterprise research and investment report", the above hunger analysis is very comprehensive, you can have time to look at it.
-
Anonymous users2024-02-04It is Delixi, which is a design codename. **The code name of DZ47S, the code name of the old model represents the plastic shell circuit breaker, and the code name 47 indicates the design code nuclear smile. d stands for power type, that is, it is suitable for power systems such as motors.
z means automatic. 47 is the design serial number ascending. 63 is its shell level, that is, this shell can be used up to 63A current.
C10 indicates the rated current, that is, the rated current is 10A.
Miniature circuit breaker (English name: miniature circuit breaker) is also known as micro circuit breaker (micro circuit breaker), suitable for AC 50 60Hz rated voltage 230 400V, rated current to 63A line overload and short circuit protection, can also be used as infrequent operation conversion of the line under normal circumstances. Miniature circuit breakers are mainly used in various places such as industrial, commercial, high-rise and residential buildings.
The product should meet the standard.
The switch in the low-voltage distribution system is divided into three types: 1, frame circuit breaker (current is generally 400 6400) molded case circuit breaker (current general micro circuit breaker (current is generally the difference between molded case and micro break in addition to the difference in current range, the most important thing is the application, frame circuit breaker: mainly used in the main incoming line, the outgoing side of the transformer, in the low-voltage distribution system as a main switch and branch main switch, micro circuit breaker: mainly used at the end, that is, the end of the low-voltage distribution system, The lower end of it is the electrical equipment to be carried. >>>More
The "high-voltage vacuum circuit breaker" is named because the arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum; It has the advantages of small size, light weight, suitable for frequent operation, and no need for maintenance for arc extinguishing, and is widely used in the distribution network. A Brief History In 1893, Rittenhouse in the United States proposed a vacuum interrupter with a simple structure and obtained a design patent. In 1920, the Swedish company Phogat made the first vacuum switch. >>>More
In our lives, we will use a lot of large electrical appliances, so if we don't pay attention to it, there may be a hidden danger of electric shock, in order to protect our safety, the leakage circuit breaker was invented. So what is a leakage circuit breaker? How to choose a leakage circuit breaker? >>>More
The role of the high-voltage circuit breaker:
The electrical energy can be reasonably distributed, and the electric equipment can be started to protect the current. However, when the current load is too large or a short circuit occurs, the current is automatically cut off to reduce the fault range. In addition, after the fault current is cut off, there is no need to replace the parts, which is more convenient to use. >>>More
The delay protection characteristics of the circuit breaker include four main protection functions: overload long delay protection, short-circuit short-delay protection, short-circuit instantaneous protection and grounding fault protection. Now its protection functions are concentrated on the same controller, through the panel operation for a variety of protection characteristics setting, universal circuit breaker supporting controller models are now divided into: >>>More