DataCTR - Data Center Power Systems

Automatic Transfer, Generator Paralleling, & Power Distribution Switchgear & Switchboards for Large Data Center Systems

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APT has the resources and expertise to provide safe, reliable, and cost-effective solutions for the redundancy required for up to Tier 4 data center backup. That includes redundancy applications, especially for data center switchgear.

Advanced
Power
Thought

What is Redundancy?

It is a common method to improve a power system’s reliability and availability. Redundancy duplicates critical parts or functions of a system.

No matter the size or difficulty level of the site, we have you covered from the incoming utility, down to distribution and all the redundancy in between:

Data Center Site Planning, One-Line Diagram Development, Engineering and Design Review
Outdoor Walk-In Automatic Transfer & Distribution Switchgear Modules with sheltered working and maintenance rooms
Remote Monitoring SCADA systems
Pole Mounted or Pad Mounted Low and Medium Voltage Gang-Operated Disconnect Switches, Fuses, Surge Arresters, and Cut-Outs
Low and Medium Voltage Utility Intertie Switchgear according to IEEE 1547 and Utility Company requirements
Transient Voltage Surge Suppression
Outdoor NEMA 3R Non-Walk-In
Advanced controls for peak shaving, paralleling with utilities, generators, & islanding
Valve Regulated Lead Acid Energy Control Power Systems
Low to Medium Voltage Step-up & Step-Down Transformers
On-site Commissioning Assistance, Training, Troubleshooting & more!

Data Center Switchgear

Power Quality Metering & Utility Intertie

UL recognized for Advanced Power Metering
True RMS, 3 Element Power Quality Metering:
- Metering accuracy shall be in accordance with ANSI C12.20-1998, rated an with accuracies as follows:
  - Class 10 0.5% for energy.
  - 2% of reading and 0.02% of full scale for voltages and currents.
  - 3% of reading and 0.02% of full scale for active and apparent power
- Dedicated high-brightness digital LED displays are visible in the bright sun light or in the dark
Environmental Conditions
- Operating temperature:
  - -20°C to 60°C (-4°F to 140°F)
- Humidity:
  - 0 to 95% non-condensing
Service Entrance Utility Intertie Options
- IEEE 1547 – IEEE Standard for Interconnecting Distributed Resources with Electric Power
- Visible circuit disconnect with draw-out main circuit breaker
- Utility Intertie Protective Relay Functions as required
- Voltage & Current Test Switches per utility requirements
- Potential Transformers (PTs):
  - Fused, revenue grade potential transformers connected in wye or delta configuration
- Current Transformers (CTs):
  - Dedicated Revenue Grade CTs with 0.3% Accuracy @ B0.1 Burden for Revenue Grade Meters as required

Low Voltage Data Center Switchgear/Switchboards

SBU-Series

208V – 690V, 3Ø
Silver plated copper bus
Standard bus ampacity up to 4000A
Bus Access & Cable Entry
- Front or Rear Access for either top or bottom cable entry
Your choice of Insulated Case or Molded Case Circuit Breakers
Intelligent close prevents simultaneously connecting multiple generators to dead bus with adding APT Generator Paralleling Modules to generator circuit breaker sections
NEMA 1 (indoor) or NEMA 3R (outdoor) Non-Walk-In
Integrated into APT PwrContainer ISO Container Based Outdoor Walk-In Switchgear Enclosure Module
Click here to learn more about our SBU-Series

SBU-ATO-BI

208V – 480V
Automatic Transfer Switchgear with Bypass Isolation
- Automatic Transfer Overview:
  - If there is a total loss of utility power, automatic transfer mode will cause the generator to automatically start. The generator will then come on-line and assume site load.
  - After utility power returns, a sequence of functions may be executed to return the breakers to their normal positions in an open transition.
  - After the return to normal, the generator(s) automatically come off-line, cools down, and is ready for the next start.
- Manual Control Overview
  - See Page 10 of DataCTR Brochure
Provides independent electrical fault protection for all sources:
- 27/59 – Three-phase under/over voltage
- 81O/U – Over/under frequency (Optional)

SBU-BI

208V – 480V
UPS Maintenance Bypass/Isolation with Manual, Non-electric Kirk Key Operation:
- Three identical Kirk Key locks with two identical Kirk Keys allow for only two circuit breakers to be closed at the same time.
- Remove key from source 1 and insert into the bypass circuit breaker. This enables source 2 to provide power to the load normally served by source 1.
Works best in Generator & UPS applications

SBU-SK

UPS Bypass/Isolation with Solenoid Key Release Unit (SKRU):
- SKRU with A-1 Key held captive
- UPS output breaker A is closed supplying the critical load through the UPS
- Key B-1 is held captive in the L-O interlock on breaker A
- Maintenance bypass breaker B cannot be closed until the UPS is placed in bypass mode
  - As a result, this sends a signal to the SKRU allowing release of key A-1
- The SKRU has an apartment lock that will accept either key A-1 or B-1
See Page 11 of the DataCTR Brochure to learn how to supply critical load through the maintenance bypass breaker

Available Circuit Breaker Features & Ratings

Insulated Case or Molded Case
Fixed or Drawout Mount
Medium Voltage Vacuum Circuit Breaker Ratings:
- See Page 16 of DataCTR Brochure
Low Voltage Circuit Breaker Ratings:
- See Page 17 of DataCTR Brochure

Generator Paralleling & Control Sections in Plant Power Distribution Systems

Behind door mounted generator protection circuit breaker provides an added layer of operator protection
Can automatically parallel multiple generators in the same or multiple sections
Complete manual paralleling facilities
Complete 3Ø Generator Protection
Remote Start/Stop Interface
Prevention of closing of multiple generators to a dead bus simultaneously
Even more features!

Protection for Facility Main/Feeders in Plant Power Distribution Systems

High visibility, LED type indicating lights with a service life of 100,000 hours at 77°F
Your choice of Molded Case or Insulated Case Circuit Breakers
- See Page 14 of the DataCTR Brochure
Circuit Breaker Trip Units:
- LI – Adjustable long time, instantaneous trip settings
- LSI – Adjustable long & short time, instantaneous trip settings
- LSIG – Adjustable long & short time, instantaneous trip settings, with ground fault trip settings

Temporary Generator/Load Bank Quick Connection

Per NEC 700.3, temporary generator connection applications require either mechanical or electrical interlocking of the power sources
- This safely prevents inadvertently paralleling normal & emergency power sources
Multiple generators or feeders circuit breaker sections (multiple mechanical key interlocks, transfer block)
Operation sequence without sources interlocking is available for systems that achieve NEC 700.3 source interlocking externally
Loadbank connection only applications
- Easily connects a temporary loadbank to a facility’s permanent generator(s)
- Utilizes female cam-lok type receptacles
- Circuit breaker and monitoring options available
Integrated Generator & Loadbank Quick Connection
- Combines male & female cam-loks into one unit for all your temporary connection needs in one location
- Dual-purpose termination cabinet allows for safe and clean connection of a portable temporary generator or loadbank
Cam-lok gender changeover adapters are an alternative to converting Generator Quick Connection into Loadbank Quick Connection
- Subject to implemented options
Check out APT’s Generator/Loadbank Quick Connection Solutions here

PBU-Series Power Distribution Panels

Low Voltage
- 208V – 600V
Frequency: 60 / 50Hz
Distributes Power to Facility Loads
Symmetrical Interrupting Capacity:
- 18kA, 35kA, or 65kA
Surface Mountable
Bus Options:
- Tin-plated Aluminum
- Silver-plated Aluminum
- Silver-plated Copper
Available Main:
- Molded Case Circuit Breaker
- Molded Switch
- Main Lugs Only
Can have up to fourteen 3-pole feeder breakers per section
Bottom & Side Entry for NEMA 1 & 3R
Top Entry for NEMA 1
Fuse Options available upon request

PTX-Series Utility Power Transformers

Built for easy transportation, installation, and rapid power deployment applications
Low to Medium Voltage
High Voltage Side:
- Aluminum windings
- 2.4kV – 34,500 V Delta or Wye Connected
- BIL up to 200kV
- Live front
- Radial feed
Low Voltage Side:
- Aluminium windings
- Single Low Voltage winding
- 208V – 1200 V Delta or Grounded Wye Connected
- BIL up to 60kV
- Epoxy 2 piece-bushings with 4-holes blade
Pad Mount, Step Down
Ratings:
- 500kVA – 3,000 kVA
- Frequency: 60 Hz
- Impedance: 5.75% ± 7.5%
- Temperature Rise: 65°C
Dead front or Loop feed options
Enclosure:
- Outdoor NEMA 3R
- Mild steel tank & cabinet
- Powder paint system; Color: ANSI 70 or Green Munsell 7GY 3.29/1.5
- Weights: 7000 – 17,500 lbs.
APT FAC-Series front access compact low and medium voltage air insulated switchgear is the ideal switchgear for this transformer
You can find more on the PTX-Series Dry Type & Oil Filled Power Transformers here