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50 Cards in this Set
- Front
- Back
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Describe HSTs Electrical Bus |
4160 VAC Ring Bus, provides 60 Hz/3-Phase |
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SSTGs rating? |
8000 kW/1388 Amps |
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SSTGs feed power to what? |
S-Group (switchboards) |
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EDGs rating? |
2000 kW/347 Amps |
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What are the EDGs 2 modes of operation? |
Manual Automatic |
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EDGs feed power to what? |
Vital Loads when NORM & ALT power are lost |
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S-Group (switchboards) feed what? |
NORM pwr to gen & funct L/C's NORM & ALT pwr to E-Boards |
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S-Group (switchboards) receive power from where? |
SSTGs (underway) Shore Power (inport) EDGs (emergency) |
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E-Boards primary function? |
Feed ALT pwr to vital loads when NORM pwr is lost |
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E-Boards have how many power sources? |
3 via a 3-way ABT |
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What equipment is fed directly from the E-Board? |
L/C 68A & 68B CHT System |
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How many transformers for E-Boards? |
1 transformer each Feeds 450VAC to assoc equip |
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When do EDGs operate in AUTO? |
NORM and ALT pwr loss |
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What are 1E-4E E-Boards power sources. |
Switchboard NORM ALT EMERG 1E 4S 1S 1EDG 2E 3S 2S 2EDG 3E 2S 3S 3EDG 4E 1S 4S 4EDG |
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How many Topside Load Centers? How many in the Reactor Plant? |
25 8 (33 Total) |
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How many electrical zones? Identify each zone? |
Zone 1 : Bow-FR 44 Zone 2 : FR 44-FR 64 Zone 3 : FR 64-FR 96 Zone 4 : FR 96-FR 128 Zone 5 : FR 128-FR 148 Zone 6 : FR 148-FR 180 Zone 7 : FR 180-FR 210 Zone 8 : FR 210-FR 235 Zone 9 : FR 235-Stern |
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S-Group and E-Board L/Cs? |
1S - 12,21,22,31,32,34,45,46,53 2S - 11,33,51 3S - 52,66,67,71,72,73,81,83 4S - 65,82,91 2E - 68A 4E - 68B |
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Describe a General Load Center? How many per electrical zone? How many sources of power? |
Ventilation, lighting, & other loads. Ventilation control panel inside. 1 per zone 1 source of power
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Describe a Functional Load Center? How many sources of power? |
1 funct, i.e. Catapults, ACEs. Loads fed are part of that sys. 2 sources of power. |
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What are the General Load Centers? |
L/C Location 11 2-25-2-Q 22 2-49-2-Q 32 2-78-0-Q 46 2-96-4-Q 52 2-138-0-Q 65 2-175-2-Q 72 2-197-1-Q 83 2-222-2-Q 91 2-243-0-Q |
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What are the Functional Load Centers? |
L/C Location L/C Location 12 2-25-2-Q 66 03-148-8-Q 21 6-44-0-E 67 03-180-11-Q 31 2-78-0-Q 68A 03-165-8-Q 33 03-79-9-Q 68B 03-165-8-Q 34 03-69-4-Q 71 7-180-0-E 45 3-96-5-Q 73 5-200-2-Q 51 3-133-1-Q 81 3-198-1-Q 53 03-138-5-Q 82 3-200-10-Q |
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General Load Center loads? |
L/C Loads 11 Anchor, Cath Protect, WR1&2 22 1SSFCA&B, (F) Sklry, Weps Def 32 (F) Galy, (F) O2N2, (F) AFFF Pmp 46 (F) Div Drs, Med/Dent, Comm, Port Boat Davit 52 (A) Sklry, Repl Winch, Vend Mac 65 (A) Galy, Capt Galy, Flag Galy 72 (A) O2N2, ADP, Arst Gear, WR3, Stbd Boat Davit, (A) AFFF Pump 83 3SSFCA&B, FP 16-17-18-22 (A) Cath, CPO Galy, Crane, Incin 91 Lndry, Emer Str, CIWS 22&23 |
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Functional Load Center loads 2nd deck and below? |
L/C Loads 12 4ACMR, AC 9 21 AC 1&2, (F) Rfers, FP 1-3, (F) JP5 31 Weps El, FP 4-5-6 45 ACE #1 51 ACE #2, List Control, Padeyes 71 AC 3&4, (A) Rfers, FP 14-15, (A) JP5 73 AC 8&10 81 ACE #3 82 ACE #4 |
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Functional Load Center loads on the 03 Level? |
L/C Loads 33 Cat #1 34 Cat #2 53 Cmbt Sys Electronics 66 Cat #3&4, (A) Div Dr 67 Island Power 68A LC 53 Backup 68B LC 67 Backup |
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What is different about Load Centers 12, 21, 71, and 73? |
12 - NORM pwr is 1S, ALT pwr is 4S (Tagged out and DFS in) 21 - Has 2 buses (1 vital, 1 non-vital) ALT pwr NORM underway 71 - Has 3 buses (2 vital, 1 non-vital) No interlock for MBT on Vital B Possible both sources to be on ALT pwr NORM underway 73 - ALT pwr is 2S Pwr from S-Group to MBT first, then trnsfrm then to swtchbrd Both pwr source not avail same, if MBT fails 4160V is paralleled out of phase and explosion |
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What are the 400Hz load centers and their locations? What are the 400Hz switchboards and their locations? |
1SF1&2 - (03-44-1-Q) 2SF1&2 - (03-138-5-Q) LC 53 3SF1&2 - (03-204-2-Q) CPO Head
1SF - (Fwd Diesel) 2SFA&B - (2 SwitchGear) 3SF - (Aft Diesel) |
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Describe motor driven generator? Describe solid state freq converters? How many frequency converters? |
300kW/450V/3 Phase - MG
144kW/450V/3 Phase - 6 FCs 1SSFC A&B 2SSFC A&B 3SSFC A&B |
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What are the pwr sources for the 400Hz machines (MGs & FCs)? What are their locations? |
1SSFC A&B - LC 22 2SFMG A&B - LC 64 (MBT - LC 44) 3SFMG B - LC 83
1SSFC A&B - (4-34-0-E) Fwd EDG 2SFMG A&B - (4-165-0-E) MMR #2 3SFMG B - (7-225-0-E) Aft EDG |
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Can SSFCs and SFMGs be put in parallel? |
No |
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Transformers purpose? Location? E-Boards transformer purpose? What prevents condensation build-up? |
Change 4160V to 450VAC In LC space for most topside LCs Provide pwr to funct LCs via MBT Heaters prevent condensation
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What are feeder breakers? |
Feed pwr to transformers, load centers, and MBTs on the 4160 ring bus directly from S-Groups |
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What are bus ties? |
Breakers used to connect a bus or group of buses together. Provided between switchboards to allow for load transfers. |
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Describe ABTs (Auto Bus Transfer)? |
Associated with vital equipment Have 2 sources of power: NORM / Preferred ALT / EMERG Auto shft to ALT when NORM lost Elect interlocks prev 2 src cntct Contact CHENG to test ABT |
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How many knobs do A-2 ABTs have? What do they do? |
3 knobs Preferred/EMERG or NORM/ALT Auto/Manual Test |
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How many knobs do A-3 ABT have? What do they do? |
4 Preferred or NORM EMERG or ALT Auto/Manual Test |
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How to shift A-3 ABT? |
Obtain Permission Place in Manual Turn NORM or EMERG OFF Turn EMERG or NORM ON Leave in Manual if on EMERG |
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Describe MBTs (Manual Bus Trans)? How many power sources? How is power transferred? |
Associated with vital electronic equip and some non-vital electronic equip Have 2 sources of power Power transfer is done manually |
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How to shift MBTs? |
Establish COMMS with IEW/CAO Obtain authorization from IEW/CAO Ensure power source is available Loosen mechanical interlock Open breaker on present source Slide interlock over open breaker Close brk on incoming pwr source Check for ground Report shift to IEW/CAO and Log it |
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Describe the ground detector? |
3 lights to mn bus checks 3 phs Connected thru transf to mn bus A, B, and C lights If light shunted, ground present |
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Describe CKT 12-TM purpose? Location? Alarm settings? |
Transformer temp monitor Monitors 4160VAC transf temp 12-TM panel located in Central Alarm Settings: -General Pwr (255°F) -Function Pwr (265°F) |
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Pneumatic Breakers purpose? |
Turn on/off equipment such as: A/C Plant compressors Motor Generator sets |
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How to close Pneumatic Breakers? |
Unlock handle Pull handle until locks in position Pump it approx 4-7 times Breaker is charged, ready to close Push down tab in lwr right crn Listen to brk close Observe blue indicating light on Unlock handle, restore position Conduct ground check, log it |
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Normal lineup for negative ventilation? |
Supply: low speed Exhaust: high speed |
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XOs ventilation controller location? |
7-190-0-L (Outside Pmp Rm #3) |
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Load Center sound powered phone circuit? |
5JV2 |
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What load centers don't have a J-Dial? |
3SF1&2 |
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When an ABT fails to switch (A-3)? |
Obtain permission to shift Place in Manual Turn NORM switch to OFF Turn EMERG switch to ON Leave in Manual Notify w/c to trblsht the ABT |
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What if transformer high temp alarm goes off? |
Check space ventilation Investigate for a fire Investigate other casualties If meter pegs out, poss bad module |
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Loss of power to load center indications? |
Ground detector lights out No lights on ventilation panels Transformer not humming Transformer heater light on |
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Loss of power? |
1S - LC 53 (2SF1&2) 2S - Nearest affected LC 3S - LC 67 4S - Nearest affected LC (F) 400Hz - LC 22 Check 1SFGA&B feeder brks (A) 400Hz - LC 83 Check 3SFGA&B feeder brks |
