Question 2 Six (6) THHN conductors rated at 75 deg. C. are installed within one metallic...
Question 2
Six (6) THHN conductors rated at 75 deg. C. are installed within one metallic raceway at a distance of 350 feet. Each conductor must carry 60 amps. The operating voltage is 208 volts, single phase and 90% power factor.
- In order to maintain a 1.0% voltage drop, using THHN cable what size conductors are required?
- What is the size of the metallic raceway?
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Question 2
Six (6) THHN conductors rated at 75 deg. C. are installed within
one metallic...
answer the following multiple choice questions 5. The most common phase serving . residence would be...
answer the following multiple choice questions
5. The most common phase serving . residence would be single phase bwo or double phase three phase multiple phases none of the answers provided RV9,1110 11. A KVA code letter indicates the innush current per hp. size of the short circult protectors size of the overcurrent protectors size of the thermal overloads none of the answers provided 6. RPM is the approximate speed under full-Hoad conditions when voltage is at rated value when...
pleas help me in this do any question you know using National Electrical Code 2011 Applied Electricity NEC...
pleas help me in this do any question you know using National
Electrical Code 2011
Applied Electricity NEC worksheet t hree Copper conductors with THHN insulation run in Electrical A branch-circuit Consther conductors. The conductor terminations are rated for a maximum ure in the area of this installation is not expected to exceed 30C size 8 AWG, the maximum ampacity of the conductors If the conductors for this circuit are permitted A 40 amperes. B. 50 amperes. to be used...
what information needed? 3. Repeat Example 7.8, using a 100 kVA transformer and #3/0 AWG and...
what information needed?
3. Repeat Example 7.8, using a 100 kVA transformer and #3/0 AWG and #2 AWG cables for the SLs and SDs, respectively Show the procedure to arrive at the following answers (a) 0.72 pu A (b) 0.050 pu V Example 7.8 residential secondary distribution system. Assume that the distribution trans- Figure 7.11 shows former capacity is 75 kVA (use Table 7.1), all secondaries and services are single-phase three wire, nominally 120/240 V, and all SLs are of...
1. Transformer with three legs A, B and C in case of homogenous the first leg...
1. Transformer with three legs A, B and C in case of homogenous
the first leg A has coil with 3 Henry, what is the Henry at leg
C
a. 0.5 H
b. 1 H
c. 2 H
d. 2.5 H
2. If a carrier wave of 10MHz is amplitude modulated by an audio
signal of 1 kHz, the resultant signal to be broadcast contains only
the:
(A) 10,001,000-Hz component
(B) 10,001,000-Hz and 9,999,000-Hz components
(C) 10,001,000-Hz, 10,000,000-Hz, and 9,999,000-Hz...
answer the following multiple choice questions
5. The most common phase serving . residence would be single phase bwo or double phase three phase multiple phases none of the answers provided RV9,1110 11. A KVA code letter indicates the innush current per hp. size of the short circult protectors size of the overcurrent protectors size of the thermal overloads none of the answers provided 6. RPM is the approximate speed under full-Hoad conditions when voltage is at rated value when...
pleas help me in this do any question you know using National
Electrical Code 2011
Applied Electricity NEC worksheet t hree Copper conductors with THHN insulation run in Electrical A branch-circuit Consther conductors. The conductor terminations are rated for a maximum ure in the area of this installation is not expected to exceed 30C size 8 AWG, the maximum ampacity of the conductors If the conductors for this circuit are permitted A 40 amperes. B. 50 amperes. to be used...
what information needed?
3. Repeat Example 7.8, using a 100 kVA transformer and #3/0 AWG and #2 AWG cables for the SLs and SDs, respectively Show the procedure to arrive at the following answers (a) 0.72 pu A (b) 0.050 pu V Example 7.8 residential secondary distribution system. Assume that the distribution trans- Figure 7.11 shows former capacity is 75 kVA (use Table 7.1), all secondaries and services are single-phase three wire, nominally 120/240 V, and all SLs are of...
1. Transformer with three legs A, B and C in case of homogenous
the first leg A has coil with 3 Henry, what is the Henry at leg
C
a. 0.5 H
b. 1 H
c. 2 H
d. 2.5 H
2. If a carrier wave of 10MHz is amplitude modulated by an audio
signal of 1 kHz, the resultant signal to be broadcast contains only
the:
(A) 10,001,000-Hz component
(B) 10,001,000-Hz and 9,999,000-Hz components
(C) 10,001,000-Hz, 10,000,000-Hz, and 9,999,000-Hz...
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