®
JEFFERSON Medium Voltage Transformers Single-Phase 3 to 167 KVA Three-Phase 15 to 300 KVA TYPICAL APPLICATIONS
■ Indoors or outdoors for: • • • • • •
Industrial and commercial High rise apartments Factories Offices and schools Hospitals Mass transit facilities For the name of your local representative, or for technical assistance, call
1-800-892-3755
®
Jefferson Electric
Medium Voltage Transformers features & benefits ■ Designed for lower weight and smaller size for easier handling and installation. ■ Quiet operation for more flexibility in choice of mounting locations. ■ Heavy-duty sheet metal enclosures for maximum durability in severe industrial applications. ■ NEMA Type 3R enclosures for indoor or outdoor applications. ■ Heat applied ASA-61 Gray Powder Coat Finish to resist corrosion in severe environments. ■ Large connection compartment for ease of wiring and installation. ■ Standard stub down terminations. ■ Taps provided on primary to compensate for voltage variations. ■ Cores made from high quality electrical steel for increased efficiency and lower operating costs. ■ Built in accordance with ANSI C57.12. ■ 220°C insulation system standard with 150°C temperature rise for longer, more reliable life. Low temperature 115°C and 80°C rise units also available. ■ Meets or exceeds all applicable NEMA, ANSI and OSHA requirements. ■ Made in U.S.A.
80 ®
Jefferson Electric
1-800-892-3755
MEDIUM VOLTAGE
Medium voltage dry type transformers offer an economical alternative to liquid filled designs for institutional, industrial and commercial applications. Designs are available for both indoor or outdoor applications. If necessary, Jefferson Electric will customize any of the standard models shown to meet your precise requirements.
Enclosures
Typical KVA/Voltage Ratios
• Encapsulated
• Single-Phase: 60 Hz - 150°C Rise 3-167 KVA
All 3 - 25 KVA
Any HV from 1.2 KV to 5 KV
• Ventilated Indoor/Outdoor NEMA 3R
Any LV from 120 V to 480 V
All 15 KVA - 300 KVA Bolted (knockdown) construction for easy field installation.
• Three-Phase: 60 Hz - 150°C Rise 15 - 300 KVA Any HV from 1.2 KV to 5 KV Any LV from 208 V to 480 V
Terminations
Standard Basic Impulse Levels (BIL)
• Standard stub down terminations through 300 KVA; front wiring to common terminal insulating bar.
Wiring Compartment
Voltage Class - KV
Full & Chopped Waves Crest - KV
1.2
10
5.0
30 or 60
• Spacious area for large conductor, ease of bending and termination. • Adequate room provided for specified fan cooling or future fan cooling provision with or without controls upon request. • Expanded metal bottom assures air cooling for accommodation of UL required conductor sizes. • Large permanent nameplate provided for ratings identification.
Sound Reduction • Designed for low flux density using grain-oriented silicon steel. • Core clamps properly torqued to assure quiet operation. • Designed to meet ANSI requirements for testing.
1-800-892-3755
®
Jefferson Electric
81
SINGLE-PHASE MEDIUM VOLTAGE Wall Mounting • Encapsulated • 2 Taps @ 5% (FCBN) • 115°C KVA
Case Size
3 5
PA
7.5 10 15
PB
25
Approx. Ship Wt. (lbs)
Catalog No. for 2400V Primary 120/240V Secondary
Catalog No. for 2400V Primary 240/480 Secondary
Catalog No. for 4160V Primary 120/240V Secondary
Catalog No. for 4160V Primary 240/480V Secondary
Fig.
Wiring Diagram
225-0105-000
–
225-0107-000
–
11
81A
185
225-0115-000
–
225-0117-000
–
11
81A
105
225-0135-000
–
225-0137-000
–
11
81A
135
225-0155-000
225-0156-000
225-0157-000
225-0158-000
11
81A
165
225-0165-000
225-0166-000
225-0167-000
225-0168-000
11
81A
235
225-0185-000
225-0186-000
225-0187-000
225-0188-000
11
81A
345
Approx. Ship Wt. (lbs)
Cabinet Style • 60 Hz • 5 KV Class • 4 Taps @ 21/2% (FCABN) • 150°C Catalog No. for 2400V Primary 120/240V Secondary
Catalog No. for 2400V Primary 240/480V Secondary
Catalog No. for 4160V Primary 120/240V Secondary
Catalog No. for 4160V Primary 240/480V Secondary
Fig.
Wiring Diagram
225-0205-000
225-0206-000
225-0207-000
225-0208-000
12
78A
385
225-0225-000
225-0226-000
225-0227-000
225-0228-000
12
78A
480
75
225-0235-000
225-0236-000
225-0237-000
225-0238-000
12
78A
620
100
225-0245-000
225-0246-000
225-0247-000
225-0248-000
12
78A
760
225-0275-000
225-0276-000
225-0277-000
225-0278-000
12
78A
1220
KVA
Case Size
37.5 50
SA
SB
167
All terminals are located on the bottom.
NOTE:
Housing dimensions subject to change without notice. Contact factory where dimensions are critical.
Dimensions in Inches
Case Size
A
B
C
PA
16.03
12.63
8.75
PB
21.19
16
10.75
SA
40.5
17.5
20
SB
51.88
26
30.88
Figure 11
Figure 12
Wiring Diagram 81A
Wiring Diagram 78A
82 ®
Jefferson Electric
1-800-892-3755
THREE-PHASE MEDIUM VOLTAGE Cabinet Style • 60 Hz • 5 KV Class • 4 Taps @ 21/2% (FCABN) • 150°C KVA
15
Case Size
TA
2400 208Y/120
227-0161-000
2400 240
2400 480Y/277
2400 480
227-0162-000 227-0163-000
4160 208Y/120
4160 240
4160 480Y/277
4160 480
Wir. Dia. Delta Wye Fig. Sec. Sec.
227-0164-000 227-0165-000 227-0166-000 227-0167-000 227-0168-000
15
82B 82A
Approx. Ship Wt. (lbs)
325
30
227-0191-000
227-0192-000 227-0193-000
227-0194-000 227-0195-000 227-0196-000 227-0197-000
227-0198-000
15
82B 82A
400
45
227-0211-000
227-0212-000 227-0213-000
227-0214-000 227-0215-000 227-0216-000 227-0217-000 227-0218-000
15
82B 82A
480
227-0231-000
227-0232-000 227-0233-000 227-0234-000 227-0235-000 227-0236-000 227-0237-000 227-0238-000
15
82B 82A
800
227-0251-000
227-0252-000 227-0253-000 227-0254-000 227-0255-000 227-0256-000 227-0257-000 227-0258-000
15
82B 82A
900
75
TB
112.5 150 225 300
TC TD
227-0261-000
227-0262-000 227-0263-000 227-0264-000 227-0265-000 227-0266-000 227-0267-000 227-0268-000
15
82B 82A
1525
227-0291-000
227-0292-000 227-0293-000 227-0294-000 227-0295-000 227-0296-000 227-0297-000 227-0298-000
15
82B 82A
1600
227-0311-000
227-0312-000 227-0313-000
15
82B 82A
2250
227-0314-000 227-0315-000
227-0316-000 227-0317-000
227-0318-000
All terminals are located on the bottom. Contact factory for additional sizes. Dimensions in Inches
Figure 15
Case Size
A
B
C
TA
33.75
24.75
18.38
TB
41.5
29.13
24.5
TC
51.88
35.75
30.88
TD
60
48
34
NOTE: Housing dimensions subject to change without notice. Contact factory where dimensions are critical.
1-800-892-3755
®
Jefferson Electric
83
THREE-PHASE MEDIUM VOLTAGE Wiring Diagram 82A
Wiring Diagram 82B
PRIMARY: 2400 or 4160 Volt Delta SECONDARY: 480Y/277 or 208Y/120 TAPS: 2, 2.5% FCAN; 2, 2.5% FCBN
PRIMARY: 2400 or 4160 Volt Delta SECONDARY: 480 or 240 Volt Delta TAPS: 2, 2.5% FCAN; 2, 2.5% FCBN PRIMARY
PRIMARY
SECONDARY
SECONDARY Primary
Primary
% Taps
On Each Coil Jumper Between Taps
Connect Primary Lines To
% Taps
On Each Coil Jumper Between Taps
Connect Primary Lines To
+5.0
1 and 2
H1, H2, H3
+5.0
1 and 2
H1, H2, H3 H1, H2, H3
+2.5
2 and 3
H1, H2, H3
+2.5
2 and 3
Nom.
3 and 4
H1, H2, H3
Nom.
3 and 4
H1, H2, H3
-2.5
4 and 5
H1, H2, H3
-2.5
4 and 5
H1, H2, H3
-5.0
5 and 6
H1, H2, H3
-5.0
5 and 6
H1, H2, H3
Secondary
Secondary Connect Secondary Lines To
Volts
Connect Secondary Lines To
480 or 208
X1, X2, X3
480 or 240
X1, X2, X3
277 or 120 1 Phase
Between X0 and X1 or X2 or X3
Volts
84 ®
Jefferson Electric
1-800-892-3755