Danfoss PTU 025 Design Guide

* F10/F11/F12/F13 Only
* F10/F11/F12/F13 Only
91-1
92-1
93-1
91-2
92-2
93-2
S1
T1
R1
S2
T2
R2
95
Rectier 1
Rectier 2
Inverter1 F8/F9
Inverter2 F10/F11
Inverter3 F12/F13
130BB758.11
91-1
92-1
93-1
91-2
92-2
93-2
S1
T1
R1
S2
T2
R2
95
Rectier 1
Rectier 2
Inverter1 F8/F9
Inverter2 F10/F11
Inverter3 F12/F13
91-1
92-1
93-1
91-2
92-2
93-2
95
Rectier 1
Rectier 2
Inverter1
Inverter2 F10/F11
Inverter3 F12/F13
A
B
C
A
6-pulse connection
1), 2), 3)
B
Modied 6-pulse connection
2), 3), 4)
C
12-pulse connection
3), 5)
Illustration 10.4 Connection of Mains Options for 12-pulse Drives
1) Parallel connection shown. A single 3-phase cable can be used with sucient carrying capability. Install shorting busbars.
2) 6-pulse connection eliminates the harmonics reduction benets of the 12-pulse rectier.
3) Suitable for IT and TN connection of mains.
4) If 1 of the 6-pulse modular rectiers becomes inoperable, it is possible to operate the drive at reduced load with a single 6-pulse
rectier. Contact Danfoss for reconnection details.
5) No paralleling of mains cabling is shown here. A 12-pulse drive used as a 6-pulse should have mains cables of equal numbers
and lengths.
Electrical Installation Con...
VLT
®
HVAC Drive FC 102
168 Danfoss A/S © 11/2017 All rights reserved. MG16C302
1010

Danfoss PTU 025 Specifications

General

Brand	Danfoss
Model	PTU 025
Category	DC Drives
Language	English