MACRO   Power & Engineering
 
1 – 500KVA THREE PHASE ISOLATION TRANSFORMER
Macro Power’s 3 phase transformers offer outstanding quality with solid construction, flame-proof insulation rated at 180OC – with no insulation fluid required. Its practical, user friendly layout and terminations designed, manufactured and fully tested to AS2374 standards. Its typical application varies from switchboards, rectifiers, imported machineries, furnaces, power and lighting applications.
Long Service life (no maintenance, extremely high reliability )
High efficiency
Reliable performance  (cool, quite operation –no fans or moving parts)
Rugged construction and conservative ratings
Highest Insulation level - class ‘H’
Excellent regulation
High power density
Low magnetic stray field
Excellent load weight ratio
Standard secondary voltages at full resistive load. 100 % duty cycle (continuous operation) 
Recommended total load is 20 to 100% of the VA rating
Earth shielding between Primary & Secondary (if requested)
Screw terminals blocks for current less than 50A, higher current on secondary may require bus bars at the discretion of Macro Power.
Short circuit protection requires external fuse, circuit breaker etc.
Installation:
Transformers must be protected by either a primary or secondary fuse
Final 100% Testing:
High Voltage
Winding Short Circuit
Open Circuit Secondary Voltage
Voltage Ratio

 
3 PHASE OPEN TYPE ISOLATING TRANSFORMER
VA DIMENSIONS - OPEN TYPE MASS
RATING H W D OPEN
kVA mm mm mm kg
1 135 310 200 16
2 200 310 200 25
3 200 310 220 34
4 200 310 300 45
5 250 250 300 55
7 280 300 300 65
10 300 350 300 77
15 300 350 300 95
20 350 400 300 120
25 350 400 300 145
30 400 400 300 170
35 450 450 300 190
40 490 450 300 220
45 500 500 350 280
50 500 550 380 320
55 500 500 400 340
60 520 500 400 360
65 520 500 400 380
70 520 520 400 410
75 550 580 450 450
80 550 580 450 480
90 580 580 450 510
100 600 600 500 550