CHARACTERISTICS IN LOW VOLTAGE II

Interharmonic voltages; interharmonics level increases due to the development of inverters and other similar equipment and command control. Because of the limited experience in this field, levels of interharmonics are to be studied.
In some cases, interharmonics, even weak level, causing the lamp flashing or interference with ripple control systems.

Transmission of signals through the network information; In some countries, the general distribution network can be used by the distributor to transmit signals. The voltage value of the transmitted signals, averaged over 3 s, must not exceed the values ​​indicated by Figure 1 in a time period equal to 99% overnight.

Nite :
Facilities customers can use carrier-current signals at frequencies between 95 kHz and 148.5 kHz. Although the overall network utilization is not authorized for the signal transmission between clients must be taken into account tensions at these frequencies that reach up to 1.4 V rms in the general distribution network in BT. Because of the possibility of mutual interference between signal transmission facilities nearby, it may be necessary for the client to protect or ensure proper immunity to installation of transmission.

Posted in: Flicker severity,Interharmonic voltages,Voltage dips