Supplying Power to Motors from Variable Frequency Drives

March 23, 2023

by Treotham

Articles, Industrial Electrix

Treotham’s Treoflex TA6 EMC/VSD cables have a unique transparent orange UV-stabilised outer sheath and XLPE conductor insulation. The transparent orange pigmentation provides a distinctive colour to the outer sheath, offering UV resistance and allowing the braid to remain visible.

Designed primarily to supply power to motors from variable frequency drives (VFD’s), the Treoflex-UV drive cable range maintains full electromagnetic compatibility (EMC) throughout its rated life.

The cross-linked XLPE polyethylene conductor insulation improves current-carrying capacity. The flexible cables are suitable for both fixed installation and movable connection in industrial equipment, process lines, and machines operating in dry or damp rooms. The symmetric construction of the cable (3+3PE) with conductors arranged every 120° ensures the symmetry of supply voltages on the motor terminals.

Ranging in size from 1.5 mm² up to 300 mm², the TA6 series provides a complete flexible cable solution with its multi-stranded conductors, cross-linked XLPE polyethylene insulation, double screening elements, foil plus braid, and its protective UV-resistant outer sheath made from a special PVC. To ensure optimal screen earthing and the fulfilment of electromagnetic compatibility requirements by the connection, we recommend using Skintop metal EMC glands.

Treoflex Features

Low capacitance
Self-extinguishing transparent/orange sheath
Flexible copper wire, class 5 as per PN-EN 60228 or PN-HD 383 S2
XLPE cross-linked polyethylene conductor insulation
Black, brown, grey, yellow-green
(3 + 3PE). Cores twisted together without fillers
Electrostatic screen: polyester tape covered with a layer of aluminium,
and a second screen of a tinned
copper wire braid
Special PVC, self-extinguishing and flame-retardant, UV-resistant sheath
(as per PN-N60332-1).

Cable Glands

Cable Glands are a vital component in any electrical system. They are designed to provide a secure, reliable, water-tight connection between cables and electrical enclosures, making them an essential part of any wiring system. Cable Glands are often referred to as strain relief fittings, cable connectors or cable seals. They come in a variety of shapes and sizes and are designed to accommodate different types of cables and wires. The most common type of Cable Gland is the compression type, which is typically used to connect a cable to an enclosure or panel. The compression style is the most common because it is easy to install and provides a reliable connection.

View the full article in the magazine’s electronic version