Learn How to Design Electrical + Air Conditioning (MVAC) Systems for Critical Purposes (17 & 18 Dec 2020 + 14 & 15 Jan 2021)

2-day CPD Course in Electrical Design for Mission Critical Supply

(17 and 18 December 2020 - Approved CPD Course by CIBSE UK)
 
 
Mission-critical infrastructure have particular power requirements that significantly impact how they are designed and operated. We prepare individual to fully understand the high voltage system design & build by exploring the best practices and sharing the instructor's experience. You will gain insight into the critical supply system, from power components to distributions and efficiency; from power requirements to sizing, design, testing and commissioning.

All sections are conducted by Chartered Engineer (CEng) who have more than 20 years experience in electrical engineering, project management, sustainable engineering and facility engineering for critical services.
 
 
-- Concept on primary supply and secondary supply
-- Power flow in mission critical supply system
-- Features of major equipment for critical supply
 
  > Uninterrupted power supply and power storage
  > Backup generator
  > Automatic transfer switch
  > Static transfer switch
  > Isolation transformer
 
-- Efficiency assessment
-- Power quality review
-- Configuration diagram of critical supply (N+1 / 2N) design & analysis
-- Review of cable sizing to incorporate harmonics content
-- Earthing system design
-- Testing and commissioning requirements
-- Brief of Systems Merging Appraisal Test (SMAT)


Instructor: Ir C.K. Chan,
CEng, CEnv, FSOE, FIplantE, MIET, MHKIE, CSME, REW H0 C0


Date: 17 - 18 December 2020 (Thursday - Friday)
Time: 10:00 ~ 17:30
Venue: Unit 1226A, Star House, 3 Salisbury Road, Tsim Sha Tsui, Hong Kong
Language: Cantonese (English Courseware)
Fee: Special rate is applicable for

(1) all membership classes of HKIE / CIBSE / professional organizations in engineering; or
(2) more than 1 enrollment made at the same time
 
 
For the course details, please call (852) 2117 3893 or visit www.stmedia-asia.com/newsletter_6.html. 

2-day CPD Course in Air-Conditioning System Design for Critical Infrastructure
(14 and 15 January 2021 - Approved CPD Course by CIBSE UK)

 

 

This is a practical course for engineers who design or handle MVAC (Mechanical Ventilation and Air-Conditioning) equipment for mission-critical buildings / data center projects. The course highlight design principles such as psychrometric chart, cooling load calculation / estimation, etc. and the design considerations such as air distribution, availability / redundancy, common mistakes, Computer Fluid Dynamic (CFD) model, integration with MEPs (Mechanical, Electrical and Plumbing systems), etc.

 

You'll be able to make informed decision about the best choices of cooling systems for mission-critical purposes and how that system fulfill your project goal and SLA (Service Level Agreement).

 

> Datacom Equipment Power Trends and Cooling Applications

 

  -- Load trends and their application
  -- Air cooling of computer equipment
  -- Liquid cooling of computer equipment

> Design Consideration

 

  -- Design criteria
  -- HVAC load
  -- Computer room cooling
  -- Air distribution
  -- Liquid cooling
  -- Availability and redundancy

  -- Controls
  -- Integration with other MEP (Mechanical, Electrical and Plumbing) system 
  -- Computer Fluid Dynamics (CFD)

> Testing and Commissioning

 

  -- Air cleanliness test
  -- Heat load test
  -- Factory acceptance test
  -- Site acceptance test
  -- Integrated performance test (IST)

> Energy Efficiency

 

  -- Power usage effectiveness
  -- Chilled water plant optimization
  -- Water side and air side equipment
  -- Part load operation
  -- Controls and energy management
  -- LEED certified data center
  -- Building energy code

> Sustainable Design

 

  -- Combined heat power plant (CHP)
  -- Solar cooling
  -- Geothermal cooling
  -- Evaporative cooling
  -- Air side economizers
  -- Desiccant unit

Instructor: Ir Samuel K.P. Lip,
CEng, RPE, FCIBSE, MIET, MIFireE, MIMechE, MASHRAE, MHKIE, MCIH, REA, REW C0


Date: 14 - 15 January 2021 (Thursday - Friday)
Time: 10:00 ~ 17:30
Venue: Unit 1226A, Star House, 3 Salisbury Road, Tsim Sha Tsui, Hong Kong
Language: Cantonese (English Courseware)
Fee: Special rate is applicable for

(1) all membership classes of HKIE / CIBSE / professional organizations in engineering; or
(2) more than 1 enrollment made at the same time
 
 
For the course details, please call (852) 2117 3893 or visit www.stmedia-asia.com/newsletter_6.html.

 

 

Enrollment & Registration

 

Kindly complete and return an Application Form (attached) together with a crossed cheque made payable to "Strategic Media Asia Limited" - Room 403, 4th Floor, Dominion Centre, 43 - 59 Queen's Road East, Hong Kong.

 

About the Organizer
 
Strategic Media Asia Limited (SMA) - Connecting IT, Facilities & Design - is one of the approved CPD course providers of the Chartered Institution of Building Services Engineers (CIBSE). The mission is to provide an interactive environment and opportunities for the engineers to exchange professional views and experience on critical infrastructure and data center services.

For details, please visit www.stmedia-asia.com/about.html.
 

 

 

Strategic Media Asia Limited
Connecting IT, Facilities and Design
 
T (852) 2117 3893  |  F (852) 2184 9978
 
Room 403, 4th Floor, Dominion Centre, 43 - 59 Queen's Road East, Hong Kong
http://www.stmedia-asia.com  |  http://green-data.blogspot.com

Electrical Distribution System in a Data Center: Medium-voltage (MV) and Low-voltage (LV) switchgear

So far we explored the Electrical Distribution System in a Data Center. The critical supply from the utility / transformer / generator to the load is enabled by various types of power equipment. One of the key components of the critical supply is switchgear.


Medium-voltage (MV) Switchgear

Medium-voltage switchgear is generally located in the power substation of large-capacity data centers (i.e. greater than 1 MW IT load). This equipment is typically fed directly from the utility and usually marks the utility service entrance to the building.

If a MV generator is present, it also feeds the MV switchgear. The following figure shows an example of MV switchgear single line diagram:-

10kV MV Switchgear Single Line Diagram

Other than simply distributing power, the MV switchgear is responsible for disconnecting faults and controlling the MV power distribution system, for example, when isolating a redundant section for maintenance.

Basically medium-voltage switchgear is the assembly of four cubicles as shown in the Figure above: two incoming units (incomers) or main section, outgoing units or feeder section, voltage metering unit, and bus section or tie section/breaker.

The outgoing unit distributes three-phase power to the primary (upstream) side of the MV / LV transformer. Due to safety distances at MV, typically each cubical is limited to only one MV circuit breaker.


The following are some typical electrical parameters for MV switchgear. Values for these parameters vary according to local regulations:


Voltage ratings:-

Two key voltage ratings for MV switchgear are rated voltage and rated lightning impulse voltage (equivalent to the ANSI basic impulse level i.e. BIL). For example, an ANSI MV switchgear solution may have a rated voltage of 15kV and 95kV BIL (i.e. impulse voltage).


Current ratings:-

The rated current of MV switchgear is always specified by the manufacturer. Another key current rating is the rated short-circuit withstand current similar to the North American National Electric Code’s (NEC) short-circuit current rating (SCCR).

For example, an ANSI MV switchgear solution may have a rated current of 1200A and 40kA SCCR.



Low-voltage (LV) Switchgear

Typically LV switchgear / switchboard is located in the electrical room and marks the utility service entrance for data centers less than 1 MW.

An example of LV switchgear is shown in figures below. If a LV generator is used, the generator would feed the LV switchgear. Apart from distributing power, the LV switchgear is responsible for disconnecting faults and controlling the LV power distribution system.

Note that in the case of a medium voltage generator, this transferring function occurs at the medium voltage switchgear level.

In real situation, the single line diagram will look something like this:-

A device known as an Automatic Transfer Switch (ATS) has traditionally been used to switch between utility and generator. However, the current trend is to have LV breakers perform this function in lieu of the ATS device. Also, there is a practice of using PLC logic for switching between utility and generator sources.

The following devices are always assembled in LV switchgear: horizontal busbar, vertical busbar, circuit breakers, meters, switches, surge arresters, relays, etc.

LV switchgear / switchboard installed in a data center is typically a combination of some of the following functional units: incoming feeder from the secondary side of the MV / LV transformer or LV generators, power control center (PCC, i.e. for downstream UPS), motor control center (MCC, i.e. for pumps), the power factor correction/harmonic filtering and the bus connections.


The following are key electrical parameters of the LV switchgear. The values for these parameters vary according to local regulations:


Voltage ratings:-

Two key voltage ratings for LV switchgear are rated voltage and rated lightning impulse voltage. ANSI does not specify the impulse voltage for LV switchgear. For example, an IEC LV switchboard solution may have a rated voltage of 690V and 12kV rated impulse withstand voltage.


Current ratings:-

The rated current of LV switchgear is always specified by the manufacturer. Another key current rating is the rated short-circuit withstand current similar to the North American National Electric Code’s (NEC) short-circuit current rating (SCCR).

For example, an IEC switchgear solution may have a rated current of 5000A and 85kA rated short-circuit withstand current.

About Us

SMA combines with professional Chartered Engineers (CEng) from the Institute of Engineering Technology (IET), the Chartered Institute of Building Services Engineers (CIBSE) and the Hong Kong Institution of Engineers (HKIE). Our engineers have more than 20 years experience in data center design & build, building services engineering and energy conservation in the private and public sectors.

The team prepares the engineers and IT personnel to face any challenges in data centers and critical facilities of any size, in any location. For other design considerations / topics in data center and critical infrastructure, please visit 

(1) Site Selection,
(2) Space Planning,
(3) Cooling,
(4) Redundancy,
(5) Fire Suppression,
(6) Meet Me Rooms,
(7) UPS Selection,
(8) Raised Floor,
(9) Code & Standards,
(10) Transformers and Harmonic Distortion,
(11) Multi-mode UPS Systems,(12) Electrical Rooms,
(13) Generator Systems,
(14) Generator Fuel Systems,
(15) Battery Systems,
(16) Earthing / Grounding and Bonding, etc.

Electrical Distribution System in a Data Center

There are many different loads in the data center, such as IT devices, air conditioners (CRAC Units), pumps, lighting, etc. The critical supply from the utility / transformer / generator to the load is enabled by various types of power equipment. We are going to illustrate these equipment that are critical and without which it would not be possible to operate the data center.

Figure 1 is a block diagram of an electrical distribution system showing the name and the typical location of the electrical distribution equipment in a data center and the power flow path (Uptime Institute Tier Level II, N+1 Design) . This diagram is only an example of an electrical architecture and attempts to include all the possible major types of equipment used and their typical location in a data center. In the real world, a typical data center electrical design has much more complexity and diversity than that in this diagram.

Uptime Institute Tier II, N+1 Design

Figure 1 

Uptime Institute Tier III Design

Uptime Institute Tier IV, 2N+1 Design

Tracing the flow of power along its path (starting from the utility to the IT load) in the figure 1 above. It shows 8 essential facilities are critical for the power supply. This facilities distribute power to the downstream loads and also protect the power distribution system in the data center:

• Medium-voltage switchgear
• MV/LV transformer
• Low-voltage switchgear / switchboard / automatic transfer switch (ATS)
• UPS system with input/output switchboard and UPS distribution switchboard
• Power distribution Units (PDUs) and remote power panels (RPPs)
• Busway
• Panelboard
• Rack PDUs (rPDUs) / outlet strips

All facilities above, except for rack PDUs (rPDUs), are considered to be assemblies containing circuit breakers, switches, various types of relays, buses and connections, and control and auxiliary devices. Each device is optimized for long life and ease of maintenance.

The IEC 61947 & IEC 62271, which specifies the HV and LV switchgear terminology, considers switchboard to be the same as switchgear. For some regions like, North American, switchgear and switchboard are specified differently by ANSI and UL standards.

About Us


SMA combines with professional Chartered Engineers (CEng) from the Institute of Engineering Technology (IET), the Chartered Institute of Building Services Engineers (CIBSE) and the Hong Kong Institution of Engineers (HKIE). Our engineers have more than 20 years experience in data center design & build, building services engineering and energy conservation in the private and public sectors.

The team prepares the engineers and IT personnel to face any challenges in data centers and critical facilities of any size, in any location. For other design considerations / topics in data center and critical infrastructure, please visit 


(1) Site Selection,
(2) Space Planning,
(3) Cooling,
(4) Redundancy,
(5) Fire Suppression,
(6) Meet Me Rooms,
(7) UPS Selection,
(8) Raised Floor,
(9) Code & Standards,
(10) Transformers and Harmonic Distortion,
(11) Multi-mode UPS Systems,
(12) Electrical Rooms,
(13) Generator Systems,
(14) Generator Fuel Systems,
(15) Battery Systems,
(16) Earthing / Grounding and Bonding, etc.

Never Stop Learning - Get your Training Manuals for Critical Facilities and Data Center Design

Reliability and Redundancy Matter - Your data center / critical facilities should be kept rolling under any circumstances. Understanding the infrastructure's design and operations can minimize disruptions and avoid costly downtime.

With our high quality training courses and credential programs, you are able to gain the knowledge and best practices in data center / critical infrastructure design, operations and efficiency:

   

Budget concern? Inconvenient to travel and take the face-to-face courses? Why don't consider to purchase the self-learning kit / training manuals which are currently on sale for further learning and reference?

• Electrical Design for Mission Critical Supply
  http://www.amazon.com/dp/9887797219
  
  Total Number of Slide: 130
  Hard Copy: Black & White
  Digital Copy: DVD Included (in color and PDF format)

• HVAC Design and Cooling for Data Center Efficiency
  http://www.amazon.com/dp/9887797200
  
  Total Number of Slide: 263
  Hard Copy: Black & White
  Digital Copy: DVD Included (in color and PDF format)

• Project Management for Data Center & Critical Facilities: From Design to Commissioning
  http://www.amazon.com/dp/9887797235
  
  Total Number of Slide: 216
  Hard Copy: Black & White
  Digital Copy: DVD Included (in color and PDF format)

Each manual is edited by a team of Chartered Engineers (CEng) who has more than 20 years experience in data center design & build, building services engineering, facilities management and energy conservation in the private and public sectors. All content has been fully taken into account the requirements of international codes and standards, which prepare you to face most of the challenges in data centers and critical facilities of any size, in any location.


For order details, please contact our team (www.stmedia-asia.com/contact.html) or visit the Amazon online. Payment can be made by bank wire or credit card. Worldwide shipping will be provided.

    

    

  

  

  

About us

Strategic Media Asia (SMA) provides an interactive environment and opportunities for members of engineers to exchange professional views and experience on critical infrastructure and electrical and mechanical facilities through various training courses and site tour events.

In addition, our team is one of the CPD Course Providers of the Chartered Institution of Building Services Engineers (CIBSE).


For details, please visit http://www.stmedia-asia.com/trainings.html.

Part Time Vancancies for Local Engineers in Critical Infrastructure (Maintenance)

Strategic Media Asia Limited (SMA) is one of the approved CPD course providers of the Chartered Institution of Building Services Engineers (CIBSE). Our mission is to provide an interactive environment and opportunities for the members of IT, critical facilities and building services engineers to exchange professional views and experience.





One of the leading data center owners in Hong Kong is looking for 2 - 3 part time engineers for the general maintenance of critical facilities in their data centers (ranged from Tier 3 to Tier 4-Ready) in Hong Kong. The critical facilities include

(1) CRAC Systems, Cooling Towers; 
(2) UPS, PDUs, Switchgear, Transformers and other Critical Supply Systems.


Those who interest in the opportunity and completed any one of our critical facilities courses:-

- Data Center / Critical Facilities Design & Infrastructure Engineering (2-day)
- Air Conditioning System Design for Critical Infrastructure / Data Center (2-day)
- Electrical Design for Mission Critical Supply (2-day)
- Project Management for Critical Facilities: From Design to Commissioning (2-day)


with relevant experience in data center environment / critical infrastructure are welcome to apply. Remittance will be based on work hours (in hourly rate). For details, please send your CV and salary expectation to info @ stmedia-asia.com. Only engineers with HKID card / working permit in Hong Kong will be entitled and referred. Thank you.



    
    
     

About Us


SMA combines with professional Chartered Engineers (CEng) from the Institute of Engineering Technology (IET), the Chartered Institute of Building Services Engineers (CIBSE) and the Hong Kong Institution of Engineers (HKIE). Our engineers have more than 20 years experience in data center design & build, building services engineering and energy conservation in the private and public sectors.

The team prepares the engineers and IT personnel to face any challenges in data centers and critical facilities of any size, in any location. For other design considerations / topics in data center and critical infrastructure, please visit 


(1) Site Selection,
(2) Space Planning,
(3) Cooling,
(4) Redundancy,
(5) Fire Suppression,
(6) Meet Me Rooms,
(7) UPS Selection,
(8) Raised Floor,
(9) Code & Standards,
(10) Transformers and Harmonic Distortion,
(11) Multi-mode UPS Systems,
(12) Electrical Rooms,
(13) Generator Systems,
(14) Generator Fuel Systems,
(15) Battery Systems,
(16) Earthing / Grounding and Bonding, etc.