Valve type arresters are used inelectrical circuits. These devices are necessary in order to prevent atmospheric overload. Also valve-type arresters and surge suppressors are able to deal with switching noise. Installed devices mainly for insulators. The main parameters of arresters should include the voltage class and nominal frequency.
Puncture overload in devices is very different. If we consider stationary modifications, then the rated voltage is taken into account. The valve discharger costs an average of 15 thousand rubles.
Standard valve arrester includesresistor and capacitor blocks. Disks are most often installed in the upper part of the structure. Drive units are of low impedance type. It is also worth noting that there are devices with special locking plates. By impulse conductivity, they are quite different. Many modifications work from the module.
The principle of the valve arrester is basedon current conversion. The first voltage is applied to the plate. For magnetic interference meets the resistor. The capacitor unit passes current through itself in only one direction. The whole conversion process takes place in the modulator. The output is an alternating current with a frequency of at least 20 Hz.
By design allocate switching andlow voltage devices. Tubular modifications are applied at substations. Switching devices are distinguished by high frequency. In this case, the rated voltage of the modifications is located at 300 V. Protection systems are used in different classes. Low-voltage devices are suitable for transformers of the RK series.
The operating frequency indicator is at level 55Hz Tubular devices are used in networks with alternating current. Magnetic modifications are suitable for PE series transformers. In a separate category are fixed devices. The parameter of the rated voltage they can reach up to 340 watts.
A switching arrester is great forpower plants of different power. The disks in this case apply high conductivity. If you believe the experts, the sensitivity of the capacitor units reaches 30 mV. Many models use a diode unit that prevents the module from burning out.
Непосредственно резисторы используются, как usually wave-type, the lining is set to a small height. For transformers of the RK series, the specified dischargers are not suitable for certain. There is a quality modification in the range of 14.500 rubles.
Low-voltage discharger is good because it is not afraidmagnetic interference. Drive is used low frequency. In this case, the nominal voltage is within 100 - 200 V. Many modifications are able to boast of high conductivity and low residual voltage. It is also worth noting that the devices are great for transformers of the RK series.
The protection system for arresters is used inmainly class ME40. Working humidity is around 90%. Atmospheric overload in this case, the electronic circuit is not terrible. For KE series transformers, arresters are not suitable. Condenser units are used here low power. A user can buy a quality discharger at a price of 8 thousand rubles or more.
Tubular and valve gaps between each otherare similar. At substations, they are quite common. The main feature of the tubular modification lies in the low wiring ability. It is also worth noting that the operating frequency lies within 40-50 Hz. Many modifications are suitable for KE series transformers. Protection systems are used in different classes.
Breakdown voltage, as a rule, does not exceed500 V. The working humidity of the arrester is not more than 80%. Atmospheric overloads they are not afraid, the case is protected perfectly. Nozzles for devices are mainly combined type. Pads in this case are used quite rarely. Disks are installed at a short distance from each other.
Modifications with two capacitor boxesare very rare. Their average capacitance is 500 microns. Quite often, the rated voltage does not exceed 450 watts. KR protection systems are rarely used. Dipole type resistors for modifications are not exactly suitable. The price for a good discharger ranges from 14 to 20 thousand rubles.
Discharger valve with extended arcmay only be used in the AC circuit. Many experts say that modifications have good output conductivity. However, problems with negative polarity occur infrequently. Protection systems are mainly used class PK40. The working humidity of the arresters is around 90%. Atmospheric overloads of these devices are not terrible.
For PA series transformers, these modificationsunsuitable. If we talk about the parameters, it is important to note that their rated voltage is not very high. The maximum frequency is 66 Hz. Clamping units apply different conductivities. Disks are mainly installed in the upper part of the structure. The volume of the capacitor unit oscillates around 50 pF. You can buy a high-quality discharger in a specialized electronics store for only 15 thousand rubles.
Fixed arresters can be used onKE series transformers. Protection systems for models are used in different classes. If you believe the experts' opinion, then their conductivity averages 120 microns. Quite often, devices are made with discs on linings. Many models boast high sensitivity. It is also worth noting that capacitor blocks are used with and without converters. The capacitance maximum value is 50 pF.
For work in a network with alternating current dischargersstationary type fit remarkably, they are not afraid of atmospheric overload. Resistors are usually applied dipole type. The voltage class depends on the modulator. Some modifications are allowed to apply on transformers PKK series. Capacitor boxes are used with low power, however there is a filter for magnetic interference. A good discharger can be purchased by the user at a price of 30 thousand rubles.
Magnetic valve arrester produced withone or more adapters. The rated voltage is about 500 V. Devices without filters are very rare. Indicators are used only dipole type. In this case, capacitor boxes are installed in different sizes. Very often magnetic arresters are operated on low-voltage transformers. The operating frequency in this case is maintained at 50 Hz. For operation in DC circuit devices are not suitable.
The breakdown voltage parameter is not very high.Testing of valve arresters is carried out using wire testers. Working humidity of modifications is located at 60%. Quite often, devices are installed on the bushing insulators. The plates they are attached as the top and bottom. A good discharger can be purchased by the user at a price of 15 thousand rubles.
The valve discharger of this series is used ontransformer substations to prevent atmospheric overload. The indicator of nominal voltage is equal to 300 V. If we believe the experts, the problems with the negative modulation device are not terrible, this modification has a dipole filter. If we talk about design features, experts note the low location of the disks. The central adapters are located near the modulator. The condenser box operates at a frequency of 30 Hz. At the same time its capacity is 5 pF. The breakdown voltage of the device is 500 V.
The protection system is applied class PK50.According to experts, the device is not suitable for high-voltage transformers. Switching interference of this model is not terrible. However, it is important to note that the center conductor in some cases burns out. In this case, the working humidity of the arrester is located at 30%. Buy a model of this series, the user can be from 20 thousand rubles.
The discharger valve PBO 10 is interesting becauseIt has two modulators. The frequency in this case is controlled by the module. The conversion process of the spark gap does not take much time. Most experts say that this unit is great for transformers of the RK series. At the same time, the protection system is of high quality, and the working humidity is at the level of 60%. Buy a discharger valve PBO 10 user can at a price of 18 thousand rubles.
Arrester valve RVS works in the circuitdirect current. Suitable modification only for PE series transformers. The conductivity on the discs is quite high. Also, experts say that the process of current conversion does not take much time.
Condenser unit used high capacity.The sensitivity of the module is located at 50 mV. For KE50 series transformers, modification is not suitable. The working humidity of the arrester is located at 60%. The user is able to purchase this modification for as low as 22 thousand rubles.
The valve discharger of the series hasa lot of advantages. First of all, it is worth noting that its conductivity is maintained at 50 microns. For tubular modifications it is quite a lot. Also, experts argue that the device is allowed to operate in AC networks. For transformers of the RK series, they fit perfectly. The threshold conductivity of the arresters of the presented series is maintained at 55 microns.
The rated voltage does not exceed 400B. For transformers of the KE series, the devices are not suitable. The capacitor unit is used large capacity. At the same time, the protection system of class AK 50 is used. The breakdown voltage of the modification is located at 430 V. The system of protection against wave interference in the modification is not provided. The working humidity of the arrester is 50%. A user can purchase a model for 18 thousand rubles.
The arrester arrester is used onRK series transformers. Insulators fit only a small width. According to experts, the conductivity of the arrester of this series is quite high. The rated voltage is at 450 V. At this time, the switching permeability is located at 40 microns. The protection system of the modification is used class PE. In a network with alternating current, the capacitor unit overheats very rarely.
To work with transformer MO modificationapply infrequently. The capacitance of the capacitor unit is exactly 50 pF. Special attention in the device deserves a linear conductor, which is struggling with impulse noise. Negative modulation for him is not terrible. Separately, it should be noted that the working humidity of the arrester is 80%. You can buy it for 20 thousand rubles.
