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| 型号： | 172E |
| 厂商： | Hammond Manufacturing |
| 文件页数： | 30/48页 |
| 文件大小： | 0K |
| 描述： | TRANSFORMER PLUG & RECEPTACLE |
| 标准包装： | 1 |
| 系列： | 172 |
| 类型： | 带 1 个出口和电源线的装置 |
| 功率（瓦特）： | 750VA |
| 使用： | 230VAC 至 115VAC |
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Line Transformer - Selection Guide
Steps to Proper Transformer Selection
1. What power is available (you need to know both voltage & frequency)?
2. Check the operating voltage of your equipment (is it single voltage or multiple?).
3. What line frequency will your equipment run on? Either 50, 60 or dual 50/60 Hz. (remember, a transformer can
NOT change line frequency).
4. Use the chart below to determine your requirements:
Power Available
Your Equipment
Transformer Type Required
Voltage
115
115
115
115
115
115
115
115
230
230
230
230
230
230
230
Frequency
60
50
50
50
60
60
60
60
50
50
50
60
60
60
60
Voltage
100
115
115
115/230
115
230
230
115/230
115
115
115/230
115
230
230
115/230
Frequency
50/60
50
60
50/60
60
50
60
50/60
50
60
50/60
60
50
60
50/60
(You may also need plug adaptors)
Step Down
None Required - or - Straight Isolation
Will Not Work
None Required - or - Straight Isolation
None Required - or - Straight Isolation
Will Not Work
Step Up
None Required - or - Straight Isolation
Step Down
Will Not Work
None Required - or - Straight Isolation
Step Down
Will Not Work
None Required - or - Straight Isolation
None Required - or - Straight Isolation
5. Determine if your equipment is Electronic or Electrical:
- Electronic = containing IC chips, transistors or a circuit such as a radio, shavers, electric toothbrush, computer
printers, camcorder battery rechargers etc...(if in doubt, check with the manufacturer or refer to your manual).
- Electrical = Simple heating device, such as irons, hair dryers, electric blankets, curling irons, etc...
6. Use the chart below to locate correct series & voltage conversion in the catalog series that follow:
Transformer Type
(determined from
chart above)
Electronic
Your Equipment Type
Electrical
Step Up Use Isolation (series 298)
Step Down Use Isolation (series 172, 179 or 289)
Straight Isolation Use Isolation (series 169 or 171)
Could use “Auto” (series 170 or 170E)
Could use “Auto” (series 175)
-
IMPORTANT NOTES
Isolation Transformers : Used for maximum safety, versatility (can be used on both electrical & electronic equip-
ment) and isolation from the power source, used to step-up, step-down or for straight isolation. The disadvantage to
using them is weight (about double the "Auto"), more expensive and larger size. This type of transformer is sometimes
referred to as "double-wound"
"Auto" Transformers : are non-isolating units and should be used where only a voltage change is required. The ad-
vantages to using them are light weight (generally half that of an isolation unit), less expensive and smaller size. The
disadvantage is no isolation from the power source. This type of transformer is sometimes referred to as a "converter".
Adaptors : We strongly recommend that 3-prong "grounded" plugs be used with all of our products. They should be
used only with our "grounded" adaptors. Adaptors do not affect voltages, they are a mechanical device only to match
foreign "pin-outs" of receptacles and/or plugs.
30
www.hammondmfg.com
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