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autotransformers single three phase Brioschi electric transformers
transflormers
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- single-phase autotransf.
- three-phase transformers
- three-phase autotransf.
- three-phase reactance
- protection boxes  
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Information:  
- general technical
- protection with fuses
- over-temperature
- terminology
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In compliance with CEI14-5 - IEC 989 EN 60289 regulations
three-phase reactance
RTAM motor start-up

Reactance for asynchronous three-phase in a case start-up motors with current at start at the nominal tension, equivalent to six times the nominal one.
Calculated for 5 starts per hour, two of which consecutive and with a 15 seconds duration each.


Technical specifications:
- nominal tension 400V
- tension reduction on motor at 30% with a starting couple equivalent to 70%
- insulation class B
- frequency 50/60 Hz.
- open execution, protection level IP00
- ambient temperature 40°C
- either vertical or horizontal execution
- connection with star centre open
- resin impregnated and tropicalised dried in the oven
- thermostat fitted into the central coil on request
- protected terminal boxes up to 50 Hp, for higher powers connections on terminal lug

Essential information for order and offers inquiries:
- power in VA or in KVA
- motor nominal tension
- network frequency
- reduced tension percentage
- numbers of starts for hour
- ambient temperature
- working ambient conditions

Download brochure


Nominal Tension: 400Vac

Code Power
Va
Watt loss
Watt
Dv
%
Vcc
%
Dim.
A
Dim.
B
Dim.
C
Dim.
D
Dim.
E
Weight
Kg
RTAM10 10000 8,5 10 180 180 130 150 80 9
RTAM100 100K 80 800 280 300 210 250 110 41
RTAM125 125K 100 1050 280 300 220 250 120 46
RTAM15 15000 12 150 180 180 140 150 90 12,5
RTAM150 150K 120 1200 350 360 220 325 100 58
RTAM180 180K 145 1300 350 360 220 325 110 65
RTAM2 2000 1,7 30 180 180 110 150 60 7
RTAM20 20000 16 200 180 180 150 150 105 13,5
RTAM200 200K 160 1500 350 360 230 325 120 72
RTAM25 25000 20 250 230 240 160 200 70 15
RTAM250 250K 200 2100 420 420 240 375 140 91
RTAM30 30000 24 300 230 240 170 200 70 19
RTAM300 300K 240 2400 420 420 250 375 150 102
RTAM40 40000 32 370 230 240 180 200 80 24
RTAM5 5000 4,2 50 180 180 120 150 70 9
RTAM50 50000 40 500 230 240 190 200 90 29
RTAM60 60000 48 500 280 300 190 250 90 32
RTAM75 75000 60 600 280 300 200 250 100 36
Dv: tension drop from vacuum to full load - Vcc: short-circuit tension.