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14 Cards in this Set
- Front
- Back
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Low Voltage (secondary) how much |
0-600 |
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Distribution voltage . How much |
2000-34,500 |
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Sub transmission voltage. How much |
46k-161k |
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The transmission grid can be compared to what ? |
Our federal interstate road system |
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Anything over 34.5kv is what ? |
Transmission |
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The 2 types of power transmission are ? |
Overhead line. Underground cable |
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What are the 4 basic component of an overhead transmission line ? |
Structure insulator conductors static wire, shielded wire |
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Does static wire carry any load current ? |
No |
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Wood pole structure |
From 46-161kv, less cost. Easy to construct 161 and below |
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Concrete poles |
Greater strength. Can be rounded or squared... lightning can just poles |
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Tubular steel poles |
More pleasing to the public. Lighter then concrete. . Long lifespan No decay. More expensive then wood |
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Lattice type steel |
Only for 230kv and above |
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An insulator does what ? |
Restrictions the flow of electrical current |
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Polymer insulator |
Lighter and durable |
