Transformer FSTO, FSTT

Provide

• galvanic outcome of consumers from primary power line: weakening of pulse hindrances and noise in the range of frequencies of 0,001-30 MHz not less than by 1000 times;
• protection of the electronic equipment against powerful pulse hindrances.

Design
Single-phase and three-phase transformer FSTO surge protectors represent floor blocks. Case elements are made from metal are also painted by a wearproof polymeric covering. Color – gray RAL 7035. Extent of protection – IP20. If necessary above the equipment can be collected in case elements with higher extent of protection.
The basis of the transformer filter is dividing transformer providing galvanic division of loading and power line.
For improvement of characteristics of a filtration of high-frequency hindrances the design switched on the LC filter.

  Parameters of protection against pulse hindrances

Parameter	Value
The maximum pulse current maintained by the limiter	8500 А
The maximum disseminated energy	140 J
Reaction time	20 s-9

Parameters of suppression of hindrances

Frequency, MHz	0,001	0,01	0,1	1,0	10,0	100,0
Suppression of asymmetrical hindrances in power-supply circuits	88 db	72 db	64 db	60 db	59 db	40 db

We manufacture transformer filters with various capacities, from 250 BA to 60 kVA.

Features of transformer filters:

• have the widest range of suppression of network hindrances from all noise-suppressing devices of passive type;
• provide the maximum protection against retension (the high-voltage impulses practically don't get via the untying transformer). Protect from influences of the specifics intended for unauthorized power impact on equipment;
• don't lose efficiency of protection during the work in a two-wire network. Efficiency of ordinary noise suppressing filters during the work in two-wire network without tire of grounding falls from 30 to 100%.