Causes and solutions for circuit breaker closing failure - Delixi circuit breaker

(1) Type selection. Depending on the application, select different circuit breakers. Circuit breakers are generally divided into power distribution, lighting, motor maintenance, thyristor maintenance and leakage maintenance. (2) Selection of the number of poles. It should be based on different installation environment conditions.

Delixi's three-phase circuit breaker is generally divided into three types, namely 3P, 3P+N and 4P. (1) Differences: 3P: Pure three-phase electrical equipment only uses three wirings, and in the case of no single-phase load, it trips when it is short circuited to ground or phase; Otherwise, when a one-phase N-line load is generated, the N-line is disconnected ...

1. Upper frequency (high speed) SEt - HSP and lower limit frequency (low speed) SEt - LSP The upper frequency is the frequency corresponding to the *** large given, and the lower frequency is the frequency corresponding to the *** small given. The upper and lower limit frequencies are set to limit the speed of the motor, so as to satisfy the design.

1. When the main circuit is equipped with a total leakage maintainer, the main barrier switch, the branch barrier switch, the main circuit breaker, the branch circuit breaker or the main fuse, and the shunt fuse should also be installed. When the total leakage maintainer is a leakage circuit breaker with short-circuit, overload, and leakage maintenance functions, it can not be ...

CDB1 miniature circuit breaker is a current-limiting high-breaking miniature circuit breaker with overload and short-circuit maintenance, which is suitable for communication 50Hz, additional voltage 400V and below, additional current 63A and below circuits, as line overload and short circuit maintenance, can also be used under normal circumstances.

In the project, because of the 630 A circuit breaker wiring bar in the 500 kVA box-type transformer, see the second circuit breaker and circuit breaker on the left in the figure. The temperature of this corresponding region is significantly higher than that of the other two corresponding regions, and the other two phases are also hot, and the copper bars of this phase have turned white. There is no induction Deli ...

Delixi CDF1 load isolation switch, the product material is carefully selected, with the advantages of reliability and durability. At the same time, it is locked when the power is on, and it can only be turned on when the power is off, which effectively avoids the occurrence of electric shock accidents. The contacts are made of high-quality copper ...

1. If the fuse is burned out, please approve the load equipment as soon as possible, make repairs in time, and restore power; 2. If you use a fixed amount of fuse, please use a regular line, and do not match it at will, so as not to cause ...

Press the undo function key first, then press and hold the school time function key, then adjust the time and date to the current moment, press the punctual function key again, adjust the time that needs to be closed and open to the specified value, if you need to set multiple groups, then press the punctual function key to set, without multiple groups ...

(1) Ferromagnetic resonant communication regulator. It consists of a full choke and a corresponding capacitor, and has a constant voltage volt-ampere characteristic (AC regulated power supply). (2) Magnetic amplifier communication regulator. The magnetic amplifier and the autotransformer are connected in series, and the impedance of the magnetic amplifier is changed by electronic circuits to stabilize the output ...

(1) The function is different. An air switch is a kind of circuit breaker that maintains "something", which can maintain the safety of the entire household wiring and appliances, and avoid the overheating and burning of the wires. The leakage maintenance switch is a kind of circuit breaker for maintenance personnel, which can block the circuit in time when leakage is carried out to avoid the danger of electric shock.

Although this is not a common problem of AC contactors, the inability of AC contactors to engage will affect the efficiency of the operation and even damage the production equipment.

In people's lives, voltage regulators are not short, but some people do not install voltage regulators correctly, which leads to great safety hazards in the use of voltage regulators. Here's how to properly install the regulator: ...

Delixi control transformer use of the most types is BK, JBK, BKC and other types, these transformers use some precautions as follows: 1. Before purchasing, please estimate the total capacity of the electrical appliances you use.

(1) The additional operating voltage of the circuit breaker ≥ the additional voltage of the line. (2) The additional current of the circuit breaker ≥ the line load current. (3) The additional short-circuit of the circuit breaker can be turned on and off to ≥ the maximum shortness that may be present in the line.

The so-called DC-DC is actually DC to DC voltage, of course, LDO is also a kind of DC-DC, and only LDO can only achieve step-down. The general DC-DC is mainly converted from DC to AC communication through the self-excited vibration circuit inside, so the external inductance and capacitor are required to achieve LC vibration (and LDO is only ...

　　My name is Inverter, and among the many new energy-saving products, I am known as the "energy-saving forward" for my excellent function. In today's world, extreme disasters occur frequently, with melting glaciers, rising sea levels, persistent droughts, and heavy rainfall.

Many people don't know what a surge is, surge is also known as a surge or lightning protection maintainer, the first is to maintain the household electrical equipment when it rains and thunders to avoid being damaged by lightning, and when the lightning strikes high-voltage electricity is drained to the ground through the surge maintainer, it will not directly hit the electrical equipment ...

(1) Fault characteristics a) *** tripping may occur during operation, but if it is restarted after resetting, it often trips as soon as the speed rises. b) has a large inrush current, but most drives can already be tripped, maintenance without damage. Due to the ...

1. Avoid water and air entering the transformer (1) The transformer should be protected from water ingress and moisture during operation, and it is necessary to seal well the cap of the casing item, the top of the storage phase, the bushing pipe and its connecting pipes. If necessary, a leak detection test should be carried out, and if the insulation has been found to be damp, it should be adopted in time.