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The electronic network measuring devices of the multimess F96 series measure and monitor all important parameters in a three-phase network and are available in different versions. Network voltage can be monitored in accordance with EN 61000-4-30. In case of a violation, the voltage and current history is saved and can be analyzed on the TFT display, for example. Different optional interfaces and protocols allow various applications.
multiwave: passive solutions for harmonics The load on industrial networks is more and more dominated by a high number of smaller and larger converters. They are used when purchasing new machines or when modifying present machines in order to increase energy effiency.
multiwave active significantly increases operational safety The loads in industrial networks are increasingly dominated by a large number of small and large converters. In this context, two effects can be observed. Due to the falling number of motors operated directly on the grid, the need for inductive fundamental reactive power is decreasing. At the same time, harmonic currents are increased. The impedance of the network transformer plays a decisive role. A large part of the harmonic voltage is created here, leading to faults in all consumers. This results in unreliable operation of the devices and an increased number of malfunctions.
To prevent resonance phenomena caused by harmonic content in the power supply system, filter circuit reactors are required to set up detuned compensation systems. Here, high linearities guarantee the necessary functional stability even in the overload range
The power quality analyzer and fault recorder multimess F144-PQ for low, medium and high voltage networks is the central component of a system that can be used to solve all measurement tasks in electrical networks. Detect possible malfunctions before they lead to a loss of production or defects in plant components. The multimess F144-PQ measures and monitors the network quality. It can be used as a power quality interface according to network quality standards, such as IEC61000-2-2 / EN50160 or to check technical connection guidelines, such as DIN VDE AR 4110 and DIN VDE 4120.
The multicomp F144-3Ph-…-3 reactive power controller automatically works in 4-quadrant operation (generator operation), i.e. even with return feed into the energy supplier network, missing compensation power is detected and compensated without any problem. Through the integrated temperature measurement input, the ambient temperature in the reactive power compensation unit is also monitored, and if a predefined limiting temperature is exceeded, the ventilator is switched on. Through the three-phase recording of voltage and current, not only the usual three-phase compensation is possible, but also single-phase compensation or a combination of single-phase and three-phase compensation.
ใช้สำหรับควบคุมการทำงานของ Capacitor ให้ได้ค่า Power Factor ตามที่ต้องการ The microcontroller-controlled multicomp F144-3 records all network data relevant to the control of small systems via A/D transformer inputs. After calculating the required compensation power to achieve the desired target cos φ, the available capacitor stages are automatically switched on or off with a few switching operations. Programming is menu-assisted and is performed with two buttons. System-specific values are stored in a non-volatile memory. Each stage can be switched individually via the built-in manual-0-automatic function.
Power capacitors for reactive current compensation in single-phase and 3-phase versions, developed for the highest requirements. Apart from a long operating life and high current and voltageload capacity, safety in case of overload (all-pole overpressure disconnector) is a crucial advantage of the compact dry technology components. Other features are good heat dissipation, low self-heating as well as reliable performance at high ambient temperatures.