Dry Type Distribution Transformers
Drive Isolation Transformers: 7.5–440 kVA, Three Phase
Special Voltages and kVA Sizes for Drive Applications
For SCR (Silicon Control Rectifier) variable speed motor drive
applications, a transformer is needed to magnetically isolate
the incoming line from the motor drive. The transformer
must also provide a voltage change to match the required
voltage of the SCR Drive. Standard designs are delta primary
and wye secondary to match the common power sources
required in most three phase rectifier circuits.
SolaHD Drive Isolation Transformers are specifically
designed to handle the mechanical stresses, voltage
demands and harmonics associated with SCR applications.
Applications
• SCR Variable Speed Drives
Features
• Available from 7.5 thru 440 kVA, 3 Phase, 60 Hz
• Isolation minimizes load disturbances caused by the
SCR drive
• UL Listed/NEMA Type 3R enclosures when used with
optional weather shield
• Taps on all units for adjustments to incoming source
voltage. Full capacity secondary neutral as required
by the National Electric Code
• Shielding attenuates line to ground noise
• 10 year limited warranty
Certifications and Compliances
All Models
Listed
- E25872 (UL 1561) or E77014 (UL 5085)
- RoHS Compliant
Selection Table 1: Three Phase
•
•
Listed (7.5kVA Models only)
Certified (11 and 14kVA Models
only)
•
Style 1- Ventilated
Select Models
E77014
E25872
Design Styles
W
D
H
Related Products
• Surge Protective Devices
• K-13 Rated Transformers for Variable Frequency Drives
Accessories
• Weather Shields
Style 4 - Encapsulated
Visit our website at
www.emerson.com
or contact Technical Services at
(800) 377-4384
with any questions.
© December 2018
229
Dry Type Distribution Transformers
Selection Table 1: Three Phase
Drive
NEMA 3R
Horse
Weather
460
Δ
Primary
460
Δ
Primary
575
Δ
Primary
Power 460Y/266 Secondary 230Y/133 Secondary 230Y/133 Secondary Shield
(1)
60 Hz
60 Hz
60 Hz
5
7.5
10
15
20
25
30
40
50
60
75
100
125
150
200
250
300
400
DT651F7.5S
DT651H11S
DT651H14S
DT651H20S
DT651H27S
DT651H34S
DT651H40S
DT651H51S
DT651H63S
DT651H75S
DT651H93S
DT651H118S
DT651H145S
DT651H175S
DT651H220S
DT651H275S
DT651H330S
DT651H440S
DT661F7.5S
DT661H11S
DT661H14S
DT661H20S
DT661H27S
DT661H34S
DT661H40S
DT661H51S
DT661H63S
DT661H75S
DT661H93S
DT661H118S
DT661H145S
DT661H175S
DT661H220S
DT661H275S
DT661H330S
DT661H440S
DT631F7.5S
DT631H11S
DT631H14S
DT631H20S
DT631H27S
DT631H34S
DT631H40S
DT631H51S
DT631H63S
DT631H75S
DT631H93S
DT631H118S
DT631H145S
DT631H175S
DT631H220S
DT631H275S
DT631H330S
DT631H440S
N/A
(2)
WS-02
WS-02
WS-02
WS-14
WS-14
WS-14
WS-14
WS-30
WS-30
WS-30
Group I
Catalog Number
Group II
Catalog Number
Group III Catalog
Number
Dimensions
Height
in (mm)
Width
in (mm)
Depth
in (mm)
kVA
Approx.
Ship Weight
lbs (kg)
236.0 (107.00)
166.0 (72.00)
180.0 (82.00)
210.0 (95.00)
277.0 (126.00)
309.0 (140.00)
329.0 (149.00)
372.0 (169.00)
479.0 (217.00)
510.0 (231.00)
637.0 (289.00)
910.0 (413.00)
920.0 (417.00)
Design
Style
7.5
2
11
3
14
3
20
27
34
40
51
63
75
93
118
145
175
220
275
330
440
17.00 (431.8) 20.00 (508.0) 10.00 (254.0)
23.00 (584.2) 18.00 (457.2) 14.00 (355.6)
23.00 (584.2) 18.00 (457.2) 14.00 (355.6)
23.00 (584.2) 18.00 (457.2) 14.00 (355.6)
28.00 (711.2) 23.00 (584.2)
16.00 (406.4)
28.00 (711.2) 23.00 (584.2)
16.00 (406.4)
28.00 (711.2) 23.00 (584.2)
16.00 (406.4)
28.00 (711.2) 23.00 (584.2)
16.00 (406.4)
34.00 (863.6) 28.00 (711.2)
22.00 (558.8)
34.00 (863.6) 28.00 (711.2)
22.00 (558.8)
34.00 (863.6) 28.00 (711.2)
22.00 (558.8)
21.00 (533.4)
21.00 (533.4)
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
WS-10
44.00 (1117.6)
33.00 (838.2)
WS-10
44.00 (1117.6)
33.00 (838.2)
WS-11
WS-11
WS-11
WS-11
WS-12
46.00 (1168.4)
46.00 (1168.4)
46.00 (1168.4)
46.00 (1168.4)
36.00 (914.4)
36.00 (914.4)
36.00 (914.4)
36.00 (914.4)
24.00 (609.6) 1150.0 (522.00)
24.00 (609.6) 1280.0 (581.00)
24.00 (609.6) 1415.0 (642.00)
24.00 (609.6) 1525.0 (692.00)
65.00 (1651.0) 45.00 (1143.0) 35.00 (889.0) 2450.0 (1111.00)
Notes:
1. Weather shields come in a set of two and must be ordered separately.
2. Encapsulated. No weather shield required. cULus E77014.
3. Units are CSA marked.
Electrical Connection Key
Electrical Connection
Number
Group I
7.5 kVA ......................................................... 1
11-440 kVA ................................................... 4
Group II
7.5 kVA ......................................................... 2
11-440 kVA ................................................... 5
Group III
7.5 kVA ......................................................... 3
11-440 kVA ................................................... 6
230
Visit our website at
www.emerson.com
or contact Technical Services at
(800) 377-4384
with any questions.
© December 2018
Dry Type Distribution Transformers
Electrical Connections
460
Δ
Primary, 460Y/266 Volt Secondary
Taps: 1,5% FCAN; 1,5% FCBN
1
460
Δ
Primary, 230Y/133 Volt Secondary
Taps: 1,5% FCAN; 1,5% FCBN
2
Primary
Voltage
483
460
437
Secondary
Voltage
460
266
Connect
1-H1 & 2-H2 & 3-H3
4-H1 & 5-H2 & 6-H3
7-H1 & 8-H2 & 9-H3
Line Leads
H1, H2, H3
H1, H2, H3
H1, H2, H3
Line Leads
X1, X2, X3
X0-X1, X2, X3
Primary
Voltage
483
460
437
Secondary
Voltage
230
133
Connect Taps
1-H1 & 2-H2 & 3-H3
4-H1 & 5-H2 & 6-H3
7-H1 & 8-H2 & 9-H3
Line Leads
H1, H2, H3
H1, H2, H3
H1, H2, H3
Line Leads
X1, X2, X3
X0-X1, X2, X3
575
Δ
Primary, 230Y/133 Volt Secondary
Taps: 1,5% FCAN; 1,5% FCBN
3
Primary
Voltage
604
575
546
Secondary
Voltage
230
133
Connect Taps
1-H1 & 2-H2 & 3-H3
4-H1 & 5-H2 & 6-H3
7-H1 & 8-H2 & 9-H3
Line Leads
H1, H2, H3
H1, H2, H3
H1, H2, H3
Line Leads
X1, X2, X3
X0-X1, X2, X3
Visit our website at
www.emerson.com
or contact Technical Services at
(800) 377-4384
with any questions.
© December 2018
231
Dry Type Distribution Transformers
Electrical Connections
460
Δ
Primary, 460Y/266 Volt Secondary
Taps: 1,5% FCAN; 1,5% FCBN
4
460
Δ
Primary, 230Y/133 Volt Secondary
Taps: 1,5% FCAN; 1,5% FCBN
5
Primary
Voltage
@ Tap
1
2
3
H1-H2-H3
Voltage
483
460
437
Secondary Voltage
X1, X2, X3
X0-X1, X2, X3
Primary
Voltage
@ Tap
1
H1-H2-H3
Voltage
483
460
437
Secondary Voltage
X1, X2, X3
X0-X1, X2, X3
460
266
2
3
230
133
575
Δ
Primary, 230Y/133 Volt Secondary
Taps: 1,5% FCAN; 1,5% FCBN
6
Primary
Voltage
@ Tap
1
2
3
H1-H2-H3
Voltage
604
575
547
Secondary Voltage
X1, X2, X3
X0-X1, X2, X3
230
133
232
Visit our website at
www.emerson.com
or contact Technical Services at
(800) 377-4384
with any questions.
© December 2018
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