Specification
T1689 Technical Manual Rev 07
Fan/Contactor Supply Transformer
MV3000 Air Cooled DELTA
Page 68
2.14
FAN/CONTACTOR SUPPLY TRANSFORMER
2.14.1
Standard MV DELTA Cooling System
The transformer outputs are for the MV DELTA Cooling System at 230 V, single phase a.c. and the pre-charge
contactor supply at 110 Va.c.
2.14.1.1
Transformer Details
The fan and contactor supplies (MV DELTA Cooling System) are isolated from the primary of the transformer.
Part Number
MV3FTX1306A4
MV3FTX1865A4
MV3FTX1306A6
MV3FTX1865A6
Supply Voltage
380V – 480V
380V – 480V
525V – 690V
525V – 690V
Maximum Number
of Fan Boxes
1
2
1
2
a) Primary Fuse
(IEC) Type gG
10A
16A
10A
10A
b) Primary Fuse
(UL/CSA) Type J
10A
12A
8A
10A
Fan Supply Rating
(@230 Va.c. 50Hz)
4A
6A
4A
6A
Fan Secondary Fuse
7A
10A
7A
10A
Contactor Supply
(@110 Va.c.)
386VA
485VA
386VA
485VA
Weight in kg (lb)
23 kg (50.6 lb)
27 kg (59.5 lb)
23 kg (50.6 lb)
27 kg (59.5 lb)
Table 2-35. – Electrical Specification for Supply Inputs & Outputs
NOTES:
Supply Voltage (MV3FTXxxxxA4) :
380/415/440/480 V (Selected by tap changes)
(MV3FTXxxxxA6) :
500/525/600/660/690 V (Selected by tap changes)
Supply Tolerance
:
±10% from nominal, +15% for 0.5 to 30 cycles to
IEC 60146-1-1
Nominal Supply Frequency
:
50 Hz/60 Hz
Frequency Variations
:
45 - 63 Hz
Terminations
:
Screw Terminal Block to accept 0.5 - 2.5 mm²
(20 - 14 AWG) cable
NOTE: Use a consolidated crimp for smaller sized
wires.
Insulation Test Voltage
:
3.0 kV between primary and secondary
(a.c. rms for 1 minute)
:
3.0 kV between windings and case earth/ground
Further insulation tests at these voltages may degrade the insulation barriers. Customers should NOT repeat
this level of testing.
