LOT 201.34 Non-Class 1E Vital 120 VAC Flashcards Preview

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Flashcards in LOT 201.34 Non-Class 1E Vital 120 VAC Deck (10)
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1
Q
  • LOT 201.34 Non-Class 1E Vital 120 VAC*
    • *

Where is the 45 kVA 120V UPS Panels (DP003/DP004) located?

A

EAB 60’ next to RDMGs

2
Q
  • LOT 201.34 Non-Class 1E Vital 120 VAC*
    • *

What indications are available in the MCR for the Non-Class 1E Vital 120 VAC System?

A

CP003

  • *DP048A Trouble (20 kVA)**
  • *DP005 Trouble (25 kVA)**
  • *DP006 Trouble (25 kVA)**

No direct Control Room or ICS computer points for the 45 kVA system (DP003 and DP004). However, if DRPI (DP003) is lost we are susceptible to entering Tech Spec 3.0.3 condition.

3
Q
  • LOT 201.34 Non-Class 1E Vital 120 VAC*
    • *

How long will it take for load to shift back to the inverter once power returns?

A
  • 20 kVA (DP048A):*
  • *30 sec**
  • 25 kVA (DP005/DP006):*
  • *5 minutes**
  • 45 kVA (DP003/DP004):*
  • *30 sec**

Can block if transfer to load pushbutton is pressed. ***

  • Note:*
  • Name of button changes slightly for each type of UPS.*
4
Q
  • LOT 201.34 Non-Class 1E Vital 120 VAC*
    • *

What powers the 45 kVA 120V UPS Panels (DP003/DP004)?

A
  • Normal (VRT):*
  • *MCC 1L1 (DP003)**
  • *MCC 1L2 (DP004)**
  • B/U (VRT)*
  • *MCC 1G8**
  • Note:*
  • 45 kVA 120V UPS Panels do NOT have rectifiers, inverters, or batteries. It’s backup is the TSC DG.*
5
Q
  • LOT 201.34 Non-Class 1E Vital 120 VAC*
    • *

What is the difference between a rectifier and an inverter?

A
  • Rectifier:*
  • *Turns AC into DC**
  • Inverter:*
  • *Turns DC into AC**
6
Q
  • LOT 201.34 Non-Class 1E Vital 120 VAC*
    • *

What is the purpose of the Inverter Pre-Charge Pushbutton?

A

Places DC around inverter DC breaker prior to shutting breaker

Extends life of inverter capacitors.

7
Q
  • LOT 201.34 Non-Class 1E Vital 120 VAC*
    • *

What powers the 25 kVA 120V UPS panels (DP005/DP006)?

A
  • Normal (Inverter):*
  • *125VDC Bus 1B**
  • Alternate (VRT):*
  • *MCC 1J1 (DP005)**
  • *MCC 1J2 (DP006)**

Note:
Unlike 20 kVA 120V UPS panels, the 25 kVA 120V UPS panels do NOT contain a rectifier.

8
Q
  • LOT 201.34 Non-Class 1E Vital 120 VAC*
    • *

Where are the 25 kVA 120V UPS panels (DP005/DP006) located?

A

EAB 10’ in hallway

9
Q
  • LOT 201.34 Non-Class 1E Vital 120 VAC*
    • *

Where are the 20 KVA 120 V UPS panels (DP048A) located?

A
  • Inverter / Rectifier / VRT:*
  • *TB 31’ SE corner by BOP DG**
  • DP048A:*
  • *TB 55’ looking at it once you exit E stairwell**
10
Q
  • LOT 201.34 Non-Class 1E Vital 120 VAC*
    • *

What powers the 20 kVA 120V UPS panels (DP048A)?

A
  • Normal Power (Rectifier & Inverter):*
  • *MCC 1F4**
  • B/U DC (Inverter):*
  • *125 VDC 1A**
  • B/U AC (VRT):*
  • *MCC 1G1**