WEG CFW-11W G2 RB Series User Manual page 55

Installation and Connection
3
WEG supplies the synchronism transformers for panel mounting.
ATTENTION!
The shield of the synchronism transformers must be grounded.
Table 3.14 on page 3-22
Input Voltage of CFW11-11M/W G2 RB
Rated voltage of the primary H1-H2
Transformer ratio N
f (frequency)
S (power)
Voltage tolerance
Steady state overvoltage
Insulation Class
Class
Insulation
Primary to secondary
Primary to shield
Primary to enclosure
Be in accordance wit UL508 standard as the insulation material and manufacturing
Keep the core with low saturation to mantain good linearity between the primary and secondary
Shielding between the primary and secondary: metallic ribbon
3-36 | CFW-11MW G2 RB
Figure 3.41: Synchronism transformer
Figure 3.42: Mounting example of the transformers
shows the specification of the synchronism transformer
Table 3.24: Synchronism transformer specifications
/N
S P
H1
H2
Figure 3.42 on page 3-36
380 V - 480 V 500 V - 690 V
480 V 690 V
1/26 1/35
50 Hz/60 Hz
2.5 VA
± 1 %
10 %
1.1 kV
B
3000 Vca / 1 min
3000 Vca / 1 min
3000 Vca / 1 min
X1
X2
shows this mounting.