Isolation three phase K-FACTOR transformers TTI-K range for non linear loads

POWER	INPUT	OUTPUT	FREQUENCY	STANDARDS
FROM 15KVA TO 300KVA	FROM 208V TO 600V	FROM 208V TO 600V	50/60 Hz	EN 61558-2-4
				CEI 96-8
				BS 3535

K-factor transformers are designed to manage the heating effect caused by harmonics and high neutral currents. The K-factor index shows the ability of the transformer to withstand the harmonics operating within his thermal limits, through conductors of a proper size. The design of the K-factor transformers considers the "stray" losses caused by nonlinear loads and the DC component caused by triplen harmonics. The additional current which circulates in the delta winsing which may leads to a core saturation and voltage instability is taken into consideration and does not bring to a shorter life of the transformer

MAIN SPECIFICATION

K-factor rating: K-4, K-13, K-20
Overload capacity 500% for 1/60" - 200% for 30"
Dielectric strength 4,2kVac min.
Impedance voltage from 3% to 5%
Taps on primary ± 2x2.5% FCAN, ±2x2.5% FCBN
Input voltage range: ±6% on rated voltage
Max regulation at full load up to 3%
Audible noise < 60dB at 1mt.
Enclosure type: IP23, metal, epoxy painted RAL7032
Operating temperature: 0°C to 50°C
Operating humidity: up to 90% relative (non condensing)
Operating altitude: up to 1000mt above sea level

K-4 RATED TRANSFORMERS

power	part. no.	dimensions mm.			weight
KVA	part. no.	A	B	C	kg.
15	TTI427-K4	550	365	520	120
30	TTI547-K4	710	440	770	150
45	TTI667-K4	775	570	825	170
75	TTI757-K4	775	570	825	250
100	TTI807-K4	775	570	825	350
150	TTI817-K4	1100	700	1000	420
200	TTI827-K4	1100	700	1000	600
300	TTI835-K4	1100	700	1000	690

K-13 RATED TRANSFORMERS

power	part. no.	dimensions mm.			weight
KVA	part. no.	A	B	C	kg.
15	TTI427-K13	710	440	770	140
30	TTI547-K13	710	440	770	180
45	TTI667-K13	775	570	825	270
75	TTI757-K13	775	570	825	360
100	TTI807-K13	1100	700	1000	440
150	TTI817-K13	1100	700	1000	600
200	TTI827-K13	1200	800	1400	680
300	TTI835-K13	1200	800	1400	1100

K-20 RATED TRANSFORMERS

power	part. no.	dimensions mm.			weight
KVA	part. no.	A	B	C	kg.
15	TTI427-K20	710	440	770	150
30	TTI547-K20	775	570	825	240
45	TTI667-K20	775	570	825	290
75	TTI757-K20	775	570	825	460
100	TTI807-K20	1100	700	1000	530
150	TTI817-K20	1200	800	1400	750
200	TTI827-K20	1200	800	1400	980
300	TTI835-K20	1200	800	1400	1250

PART NO. REPRESENTS THE PRODUCT CLASSIFIED BY RATING. PLEASE SPECIFY THE REQUIRED INPUT/OUTPUT VOLTAGE IN YOUR ORDERS.

IF A VECTOR GROUP DIFFERENT FROM Dyn11 IS REQUIRED, THIS MUST BE SHOWN ON THE ORDERS.

DIMENSIONS AND WEIGHTS ARE REFERRED TO THE STANDARDVOLTAGES 380V IN /220V OUT. BOTH DATA CAN CHANGE ACCORDING TO THE REQUIRED INPUT/OUTPUT VOLTAGE.

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