The equivalent network NNB 103 (NNB-103, NNB103)
Provides with the device 8 or SMV SMV 8.5 measuring the radio interference voltages at the frequency 26MHz - 300MHz for devices, machines and installations, which produce spurious high frequency power (motors, power noises contacts industrial and therapeutic rf generators, etc.).
Through the equivalent of the network can be exploited for interference with a three-phase connection and a current up to 25A per phase and single-phase connection and a current of up to 10A.
The equivalent network NNB103 provides, together with instruments for measuring voltage disturbances such as 8 or SMV SMV 8.5 (z = input impedance of 50 ohms) measuring the radio interference voltages in a frequency range from 26 MHz to 300 MHz for devices, machines and installations, which produce spurious high frequency power, such as motors, power noises contacts industrial and therapeutic rf generators.
With the use of instruments to measure stress with a different RFI from z = 50 ohm input impedance, requires a transformative link.
RF interference distributed in the frequency range from 26 MHz to 300 MHz, preferably from stray radiation. Radio field intensity measurement by conventional methods require a large amount of high-quality measuring equipment, special facilities for measuring and time-consuming for measurement. Voltage measurement interference with the equivalent network is the most convenient, cheap and fast method of measurement.
This method allows the detection of radio noise emitted by the devices in the network designs, mass production and operation of different facilities, in order to eliminate them.
Measurement of Radio Interference of the unknown, time-varying and dependent on local conditions impedance values is difficult. The equivalent network replaces the unknown impedance of the equivalent resistance of a particular network. It is injected into the line for that source network interference and ensures a high-frequency isolated from the network.
Through the equivalent network NNB103 may be used for interference with a three-phase connection and a current up to 25A per phase and single-phase (two-pole) connection and a current of up to 1 0 A.
The equivalent network NNB103 can be used both indoors and in the field in accordance with GOST 9763 -4 group.
Photos: NNB 103