Motor Data sheet

1) http://motor.hyosung.com/datasheet/NT111B.pdf
2) Standrad ratings available

• http://www.paigewire.com/430-150.htm

3) Basic datasheet

• The NEC states that the motor nameplate must show the following information:
  Rated voltage or voltages
  Rated full-load amps for each voltage level
  Frequency
  Phase
  Rated full-load speed
  Insulation class and rated ambient temperature
  Rated horsepower
  Time rating
  Locked-rotor code letter
  Manufacturer's name and address http://ecmweb.com/mag/electric_understanding_induction_motor/

4) Sample data sheets
5) Motor Vendors list

• Siemens Limited
• Crompton Greves
• Kirloskar Electrical
• ABB
• BHEL
• Alstom
• Jyoti
• NGEF
• Integrated Electric ocmpany
• Marathon Electric motors

6 ) Misc

Industrial motor control

Tips for motor selection

Transformer data sheet

1) http://www.marsonselectricals.com/btdchart.html
2) Transformer DS-1

Short Circuit Studies

Short circuit calculations provide currents and voltages on a power system during fault conditions. This information is required to design an adequate protective relaying system and to determine interrupting requirements for circuit breakers at each switching location. Fault conditions can be balanced or un-balanced shunt faults or series faults.

The calculation procedures are as follows:

Load Flow Studies

Load Flow calculation provides the active , reactive power , bus voltage magnitude and their phase angle at all the buses under existing aswell as contemporary condition of power system.

Basic Engineering

HOME

Basic Engineering:

Basic Engineering sometimes also called as FEED (Front End Engineering Design).
Basic engineering which is conducted after completion of Conceptual Design or Feasibility Study. At this stage, before start of E.P.C (Engineering, Procurement and Construction), various studies take place to figure out technical issues and estimate rough investment cost. This work is normally contracted to a specific consultant, if it is a big one to an EPC contractor.
It is important to reflect client’s intentions and project specific requirements in to the FEED Package without fail, in order to avoid significant change during EPC Phase.
For an Electrical Engineer the Output of Basic Engineering:

1) Preliminary SLD
2) Major Equipment Specification

Feasibility studies

Report on Feasibility Studies:

Feasibility study is also called as conceptual design.
In the case of a company planning to progress into a new business, the consultants prepare what is known as a conceptual design giving a picture of the general form of that business, and based on the blueprint thereby produced, we carry out a feasibility study (an investigation of its possibilities as a business, abbreviated FS), which considers the profitability or otherwise of the business from various perspectives. Feasibility studies are usually performed in several stages, with the precision of investigation increasing step-by-step, until development as a business is finally decided, if it is judged that this will yield high profitability. Feasibility study as its starting point and commencing with a market survey selects the production process, investigates the optimum configuration for process utility equipment, calculates equipment and operating costs, and produces an optimized highly economical proposal that considers the entire plant lifecycle.

List of manufacturers

LIST OF MANUFACTURERS

Circuit Breakers & Kiosks Manufacturers :

1) M/s ABB Ltd., Flat No.007, 1st Floor, Saipragathi Towers, Himayatnagar Main Road, Hyderabad.
2) M/s Siemens Ltd., 144, Mahatma Gandhi Road, Chennai.
3) M/s Crompton Greaves Ltd., Minerva House, 4th Floor, Sarojinidevi Road, Secunderabad.
4) M/s Alstom Ltd., 5/4/187, M.G.Road, Karbala Maidan, Secunderabad.
5) M/s. Megawin Switchgear P Ltd., 505, 5th Floor, Minerva Complex, 94, SD Road, Secunderabad-3

ACSR Conductor:

1) M/s Anam Electrical Manufacturing Co., Kadiyam, East Godavari District.
2) M/s Arrow Cables Ltd., S.No. 343, Bachpally (V), Quthbullapur, Ranga Reddy District.
3) M/s Sterlite Industries India Ltd., Atur Chambers, 2a-Moledina Road, Poona.
4) M/s Oswal Cables Pvt. Ltd., Plot No. P-6/2, Industrial Development Area, Nacharam, Hyderabad.
5) M/s Hiren Aluminium Ltd., 9, A.K. Naik Marg, Near Empire Cinema, C.S.T.(V.T.), Mumbai.
6) M/s Deepak Cables (I) Ltd., 313 & 314, 3rd Floor, Embassy Centre No. 11, Cresent Road, Bangalore.
7) M/s Gupta Cables Pvt. Ltd., Cuttack Road, Bhubaneshwar.
8) M/s Smitha Conductors Ltd., 1402/03, Raheja Centre, Nariman Point, Mumbai.
9) M/s.Hind Aluminium Industries Ltd., Khanvel, Silvassa – 396230

132 & 220 kV CTs, PTs and CVTs:

1. M/s ABB Ltd.,
Plot No. 007, Sai Pragati Towers, Himayat Nagar Main Road, Hyderabad - 500 029
Fax: 040-27607580/ 080-28396552 Ph: 27675988

2. M/s Alstom Instrument Transformers Pvt. Ltd.,
27th km, Bellary Road, Dodajalla Post, Bangalore –562157
Ph: 080-28467230, 28467088 Fax: 080-28467395/28467671.

3. M/s BHEL, R&D, Ektara Building, 39 Sarojini Road, Secunderabad – 500 003.
Ph: 27703209 Fax: 27700716.

4. M/s Crompton Greaves Ltd.,
Minerva House, 4th Floor, 94, Sarojinidevi Road, Post Box No.1670,
Secunderabad-500 003. Ph: 2784727, Fax: 27842921.

5. M/s. SCT Ltd., C-15, Industrial area, Site No.3, Meerut Road, Ghaziabad(UP) - 201003

132 kV & 220 kV LIGHTNING ARRESTORS:

1. M/s Lamco Lightning Arrestor Pvt. Ltd.,
B 39, Industrial Estate, Sanathnagar, Hyderabad – 500 018.
Ph: 23702089, Fax: 23703535.


2. M/s Oblum Electricals Industries Private Ltd.,
A-16 & 17 Assisted Private, Industrial Estate, Balanagar, Hyderabad – 500 037

3. M/s Alstom IT (D) Ltd., 27th km, Bellary Road, Doddajala Post, Bangalore – 562 157.
Fax: 080 – 8467395.

4. M/s Crompton Greaves Ltd.,
Minerva House, 4th Floor, 94, Sarojinidevi Road, Post Box No.1670,
Secunderabad -500 003. Tel: 7847270, 7847090,843604, Fax: 040-7842921


132 kV & 220 kV ISOLATORS:

1. M/s G.R.Power Switchgear Ltd.,
27/B, IDA, IV phase, Jeedimetla, Hyderabad – 500 055.
Phone No.23195062 Fax: 23191355

2. M/s Versatek Switchgears Pvt. Ltd.,
1-7-81, Pederghasht Road, Secunderabad – 500 003.
Phone No.27751685 Fax: 27814673

3. M/s Southern Switchgear Industries,
145/B, Samartha Soudha, Sanjeeva Reddy Nagar, Hyderabad – 500 038
Phone No.23701150 Fax: 23703028

4. M/s Switchgears & Structurals (I) Private Ltd
Plot No.132&133, Phase-V, IDA, Jeedimetla, Hyderabad – 500 055.
Phone No.23193379 Fax: 23193319

5. M/s Universal Isolators, No.24, Palasia, A.B.Road, Indore-452 008, Madya Pradesh,
Phone No.0731-2562368 Fax: 0731 – 2562576

6. M/s Elpro International Ltd.,
Plot No.89 & 90, IDA, Ghandinagar, PO: Balanagar, Hyderabad – 500 037
Fax: 23079992



CONTROL & RELAY PANELS:

1. M/s G.E.Power Controls,
42/1 & 45/14, Electronic City, Phase II, Hosur Road, BANGALORE - 561 229
Fax: 080 - 8528469/8523357

2. M/s Easun Reyrolle Ltd.,
98, SIPCOT, Industrial Complex, HOSUR, Tamil Nadu – 635 126.
Phone: 04344 – 276995 Fax; 04344 –276397

3. M/S ALSTOM Limited, 19/1.GST ROAD, PALLAVARAM, CHENNAI – 600 003
Tel: 044-22368621 Fax:044-22367276

4. M/s ABB Ltd.,
Flat No.007, 1stFloor, Sai Pragati Towers, Himayatnagar, Hyderabad-500 029
Tel: 040-27675988 / 27660795 Fax: 040 - 27607580

LTAC PANELS

1. The Jain Enterprises,
41-4—3/11, Tadithota, Near R.K. Supply lane, RAJAHMUNDRY – 533 103
Phone: 0883 –2467026 Fax: 0883 – 2468803

2. M/s. Bodapati Control Systems Pvt. Ltd.,
10A, Type-III, Prashanthnagar, IE Kukatpally, Hyderabad – 500 072.
Ph: 040-23811692, 55456721, 23074847 Fax: 040-23718263

SOLID CORE INSULATORS and DISC INSULATORS

1. M/s Aditya Birla Industries Private Limited
District: Panchamahal, Taluka: Halol, Post Office: Meghasar, Gujarat – 389 350
Phone No.02676223375 Fax: 02676-2223375
2. M/s Insulators & Electricals Company, 131/5, M.P.Nagar, Zone-II, Bhopal – 462011.
Phone No.0755-25283584 Fax: 0755 – 2553538
3. M/s. W.S. Industries (I) Ltd., Post Bag NO. 6, Porur, Chennai –600 161.
Phone No.044-55500811 Fax: 24766382.

4. M/s Modern Insulators Ltd., P.B.No.23, Abu Road, Pin: 307 026 Rajastan (India)
Phone No.02974-228043 Fax No.02974 –221098.

5. M/s. Saravana Insulators, Chennai

6. M/s. BHEL, Ceramic Business Unit, Pro.C.N.Rao Circle,
Opp. Indian Institute of Science, Malleswaram, Bangalore – 560 012.

7. M/s.Hindusthan Chemicals Ltd., Khurja (U.P.)

CONTROL AND POWER CABLES:

1. M/s.Goyolene Fibres ( India) Private Limited, Cable Division,
'J' block, Ranjit Studio, D.S.Phalke Road, Dadar (East),Mumbai – 400 014
Fax:022-24168061

2. M/s.Vikas Cable Company, D-22, Hauz Khas, New Delhi - 110 016
Ph:011-26964398 Fax:011-26961711

3. M/s.Krishna Electrical Industries Limited,
MPI House, Gola Ka Mandir, Air Port Road, Gwalior – 474 005
Ph:0751-368087/363397 Fax:0751-366974

4. M/s.Arun manufacturing Company, 169, Karawal Nagar, Delhi -110 094
Fax: 011 – 2962667

5. M/s.Deco Industries ( India), A-99/5, Wazirpur Industrial Area, Delhi – 110 052
Ph:011-27371026/27374575 Fax:011-27375878

6. M/s.Poly Cab Wires Pvt., Ltd.,
401, 4th floor,Surya kiran Coplex, S.D.Road, Secunderabad – 500 003
Ph:55326228 Fax:55326229

7. M/s.Laxmi Power Cables Pvt., Ltd.,
Geeta Griha Building, 1st floor, Lohar Chawl, Picket Road, Mumbai - 400 002.
Fax:022-22004652

8. M/s.Incom Wires & Cables Ltd.,
C-46, Mayapuri Industrial Area, Phase - II, New Delhi – 110064
Ph:011-5400496/5400360 Fax:011-5404913

9. M/s. Arrow Cables Ltd., S.No.343, Bachpally (V), Quthbullapur, Ranga Reddy Disrict
Ph. Nos. 040-23045832 / 23042563 Fax: 040-23041069

10. M/s. Grid India Power Cables Pvt. Ltd., Gurgaon.


XLPE CABLES

1. M/s. Universal Cables Ltd., Plot No. 839/E, Road No. 42, Jubilee Hills,
Hyderabad-500033. Tel. No. 040-23608218 Fax No. 040-23553272.
Registered Office: Tel. No. 076762-257121 to 257127 Fax No.07672-257129/257131

2. M/s. RPG Cables Ltd., 1-10-9/1/5, Prabha Plaza, 2nd Floor, Begumpet Airport Road,
Hyderabad-500016. Tel. No. 040-55325272/73 Fax No. 040-55325288.

3. M/s. Hindusthan Vidyut Products Ltd., Kanchenjunga (7th Floor), 18,
Barakhamba Road, New Delhi-110001. Tel. No. 011-23310001 Fax No. 011-23313707.

4. M/s. Cable Corporation of India Ltd., 9-1-87-119/2, First Floor, St. John’s Road,
Secunderabad-500025. Tel. No. 040-27703045 Fax No. 040-27713493.
Regd. Office: Laxmi Building, 4th Floor, 6, Shoorji Vallabhdas Marg, Ballard Estate, Mumbai-400001. Tel. No. 022-2666764/5/6/7 Fax No. 022-2632694.

BATTERIES & CHARGERS & DCDB :

1. M/s Dubas Engineering Pvt. Ltd.,
347/1A, Bilekahalli, 6th Cross, 2nd stages, B.T.M. Layout, Off: Banner Ghatta Road,
Bangalore – 560 076 Fax: 27729024

2. M/s Kejriwal Auto Electric & Engineering Works
1/4C, Khagendra Chattarjee Road, Cossipore, Kolkata – 700 002.
Fax: 033 - 25575184

3. M/s Amara Raja Batteries Ltd.,
Suite 203, 6-3-55, L.B.Bhavan, Somajiguda, Hyderabad – 500 082.
Fax: 23324594

4. M/s Agarwal Salt Company,
Plot No.54, Industrial Area, Road No.6, Rani Bazar, Bikaner- 334 001.
Fax: 2529086.

5. M/s Chhabi Electricals Pvt. Ltd., E-66, MIDC, Jalgoan – 425 003 Maharastra State.
Fax: 0257 – 2213434.

6. M/s Servilink Engineers Pvt Ltd.,
2, Alkapuri society, Alkapuri, Vadodara – 390 005 Gujarat
Fax: 0265 – 2338039.

7. M/s Caldyne Automatics Ltd.,
Plot No. Y-21, Block-EP, Sector-V, Salt Lake Electronics Complex,
Bidhannagar, Kolkatta – 700 091. Fax: 033-23577062

8. M/s AAJ Accumulators Pvt Ltd., W-54 – MIDC, Shiroli, Kolhapur-416 122.
Fax: 0230 – 2469685/ 0231-2651797






7/3.15mm HTGS wire :

1 M/s UIC Wires Limited, Kolkata
2 M/s Geekay Wires Private Ltd., Hyderabad
3 M/s. Ramsarup Industries, Kolkata


i) Galvanised Bolts & Nuts
ii) Electro galvanised Rectangular Spring Washers
iii) Flat Washers

1 M/s Nexo Industries, Ludhiana
2 M/s HR Steel Industries, Howrah
3 M/s NL Engineers Pvt. Ltd., Mohali
4 M/s Himalaya Engg. Works Pvt. Ltd., Hyderabad (Washers)
5 M/s Naveen Metal Industries, Kolkata (Washers)
6 M/s Spring Lock Industries, Vadodara (Washers)
7 M/s.Remax (India) Ltd., Ludhiana

Power Transformers 220 KV
1. M/S BHEL, Bhopal,Jhansi.
2. M/s Crompton Greaves, Mombai.
3. M/s ABB , Baroda.
4. M/s Areva , Alahabad.
5. M/s Siement , Mumbai.
6. M/s Bharat Bijilee, Mumbai.
7. M/s IMP, Mumbai.
8. M/s Vijaya Electricals, Hyderabad.
9. M/s TELK, Angamalli

Hardware and Accessories for Power Conductor & Earthwire:

1 M/s. IAC Electricals Pvt. Ltd., Kolkata
2 M/s. Tyco Electronics Systems India Pvt. Ltd., Bangalore
3 M/s. Godavari Mechanical Industries, Hyderabad
4 M/s. Durga Line Materials, Hyderabad
5 M/s. Kailash Enterprises, Hyderabad
6 M/s. Uday Clamps Mfg. Co., Hyderabad
7 M/s. Modern Malleable Ltd., Kolkata
8 M/s. Star Iron Works Ltd., Kolkata
9 M/s. Asbesco (I) Pvt. Ltd., Kolkata

Motor Manufacturers list:
Siemens Limited
Crompton Greves
Kirloskar Electrical
ABB
BHEL
Alstom
Jyoti
NGEF
Integrated Electric ocmpany
Marathon Electric motors

Planning Guide for the Supply and Distribution system

1) Load Definition and forecasting

• Load survey
• Load requirements and characteristics
• Demand
• Forecasting and palnning

2) Plant distribution systems

3) Equipment locations

4) Plant Utilization volatge

5) Primary utility Supplu service

6) generation

7) single line diagram

8) short circuit analysis

9) Protection and protection device coordination

10) communications

Voltage classification

India: As per the Indian Electricity Rules, 1956, vide Rule 2(av), the following are the limits:
Low Voltage: Not exceeding 250V
Medium Voltage: Not exceeding 650V
High Voltage: Not exceeding 33000V
Extra High Voltage: Exceeding 33000V
******
But, in IS 13234 – 1992, which is the "Guide for short-circuit current calculation in Three-phase A.C. Systems" – it is mentioned vide Table I that:
Low Voltage: 100V to 1000V
Medium Voltage: > 1kV to 35kV
High Voltage: > 35kV to 230kV
******
France: Vide a publication dated 14th November 1998, the French Regulations define three voltage levels as below:
Low Voltage: <> 1kV but 50kV
******
CENELEC (The European Electrotechnical Standardisation Committee): Vide a publication dated 27th July 1992, the CENELEC recognises the following voltage levels:
Low Voltage: <> 1kV but 35kV
******
IEC (International Electrotechnical Commission): In IEC 60071, the following ranges are defined:
Low Voltage: <> 1kV but 245kV
The acronyms EHV (Extra High Voltage) and UHV (Ultra High Voltage), though are being used elaborately in India, have never been officially defined in any of the above three standards.
USA:
i) Vide IEEE Std. 241-1990 (IEEE Recommended Practice for Electric Power Systems in Commercial Buildings), Clause 3.1.1.2,
Low Voltage: A class of nominal system voltages 1000V or less
Medium Voltage: A class of nominal system voltages greater than 1000V and less than 100000V
High Voltage: A class of nominal system voltages equal to or greater than 100000V or less than 230000V
******
ii) Vide ANSI C84.1-1989 (Voltage ratings for electric power systems and equipment),
Low Voltage: 120V to 600V
Medium Voltage: 2400V to 69000V
High Voltage: 115000V to 230000V
******
iii) Vide ANSI C92.2-1987 (Power Systems – Alternating Current Electrical Systems and Equipment Operating at Voltages above 230kV Nominal – Preferred Voltage Ratings)
Extra High Voltage: 345000V to 785000V
Ultra High Voltage: 1100000V
******
Note: IEEE – Institution of Electrical and Electronic Engineers
ANSI – American National Standards Institute

Bid evaluation document

1) Good one, for Bid evaluation reports.

Battery sizing calculations

1) Basics of battery sizing

2) Battery sizing

3) IEEE-485 from scribbed

SLD preparation

1) Substation singli line diagram
2) 11 KV substation SLD

Substation design and Detail Engineering

1. Substation design
2. Project eport on 220 KV station
3.Bus bar schemes and power evacuation arrangements
4) EHV transmission systems Basics

Data sheet of ACB

http://www.cglonline.com/pdfs/international/low_voltage/acb.pdf

ANSI Device numbers for Electrical devices

ANSI Device Numbers

From Wikipedia, the free encyclopedia

In the design of electrical power systems, the ANSI Standard Device Numbers denote what features a protective device supports (such as a relay or circuit breaker). These types of devices protect electrical systems and components from damage when an unwanted event occurs, such as an electrical fault. Device numbers are used to identify the functions of devices shown on a schematic diagram.

List of Device Numbers and Acronyms

1 - Master Element

2 - Time Delay Starting or Closing Relay

3 - Checking or Interlocking Relay

4 - Master Contactor

5 - Stopping Device

6 - Starting Circuit Breaker

7 - Rate of Change Relay

8 - Control Power Disconnecting Device

9 - Reversing Device

10 - Unit Sequence Switch

11 - Multi-function Device

12 - Overspeed Device

13 - Synchronous-speed Device

14 - Underspeed Device

15 - Speed - or Frequency, Matching Device

16 - Data Communications Device (see note 5)

17 - Shunting or Discharge Switch

18 - Accelerating or Decelerating Device

19 - Starting to Running Transition Contactor

20 - Electrically Operated Valve

21 - Distance Relay

22 - Equalizer Circuit Breaker

23 - Temperature Control Device

24 - Volts Per Hertz Relay

25 - Synchronizing or Synchronism-Check Device

26 - Apparatus Thermal Device

27 - Undervoltage Relay

28 - Flame Detector

29 - Isolating Contactor or Switch

30 - Annunciator Relay

31 - Separate Excitation Device

32 - Directional Power Relay

33 - Position Switch

34 - Master Sequence Device

35 - Brush-Operating or Slip-Ring Short-Circuiting Device

36 - Polarity or Polarizing Voltage Devices

37 - Undercurrent or Underpower Relay

38 - Bearing Protective Device

39 - Mechanical Condition Monitor

40 - Field (over/under excitation) Relay

41 - Field Circuit Breaker

42 - Running Circuit Breaker

43 - Manual Transfer or Selector Device

44 - Unit Sequence Starting Relay

45 - Abnormal Atmospheric Condition Monitor

46 - Reverse-phase or Phase-Balance Current Relay

47 - Phase-Sequence or Phase-Balance Voltage Relay

48 - Incomplete Sequence Relay

49 - Machine or Transformer, Thermal Relay

50 - Instantaneous Overcurrent Relay

51 - AC Inverse Time Overcurrent Relay

52 - AC Circuit Breaker

53 - Exciter or DC Generator Relay

54 - Turning Gear Engaging Device

55 - Power Factor Relay

56 - Field Application Relay

57 - Short-Circuiting or Grounding (Earthing) Device

58 - Rectification Failure Relay

59 - Overvoltage Relay

60 - Voltage or Current Balance Relay

61 - Density Switch or Sensor

62 - Time-Delay Stopping or Opening Relay

63 - Pressure Switch

64 - Ground (Earth) Detector Relay

65 - Governor

66 - Notching or Jogging Device

67 - AC Directional Overcurrent Relay

68 - Blocking or "Out-of-Step" Relay

69 - Permissive Control Device

70 - Rheostat

71 - Liquid Level Switch

72 - DC Circuit Breaker

73 - Load-Resistor Contactor

74 - Alarm Relay

75 - Position Changing Mechanism

76 - DC Overcurrent Relay

77 - Telemetering Device

78 - Phase-Angle Measuring Relay

79 - AC Reclosing Relay

80 - Flow Switch

81 - Frequency Relay

82 - DC Reclosing Relay

83 - Automatic Selective Control or Transfer Relay

84 - Operating Mechanism

85 - Communications,Carrier or Pilot-Wire Relay

86 - Lockout Relay

87 - Differential Protective Relay

88 - Auxiliary Motor or Motor Generator

89 - Line Switch

90 - Regulating Device

91 - Voltage Directional Relay

92 - Voltage and Power Directional Relay

93 - Field Changing Contactor

94 - Tripping or Trip-Free Relay

95 - For specific applications where other numbers are not suitable

96 - For specific applications where other numbers are not suitable

97 - For specific applications where other numbers are not suitable

98 - For specific applications where other numbers are not suitable

99 - For specific applications where other numbers are not suitable

AFD - Arc Flash Detector

CLK - Clock or Timing Source

DDR - Dynamic Disturbance Recorder

DFR - Digital Fault Recorder

ENV - Environmental Data

HIZ - High Impedance Fault Detector

HMI - Human Machine Interface

HST - Historian

LGC - Scheme Logic

MET - Substation Metering

PDC - Phasor Data Concentrator

PMU - Phasor Measurement Unit

PQM - Power Quality Monitor

RIO - Remote Input/Output Device

RTU - Remote Terminal Unit/Data Concentrator

SER - Sequence of Events Recorder

TCM - Trip Circuit Monitor

SOTF - Switch On To Fault

Note 1: A suffix letter may be used with the device number; for example, suffix N is used if the device is connected to a Neutral wire (example: 59N in Siemens Relay is used for protection against Neutral Displacement); and suffixes X,Y,Z are used for auxiliary devices. Similarly, the "G" suffix denotes a "ground", hence a "51G" being a time overcurrent ground relay[1].

Note 2: A suffix number may also be used with a device number: numbers are used to distinguish multiple "same" devices in the same equipment such as 51-1, 51-2.[2]

Note 3: Device numbers may be combined if the device provides multiple functions, such as the instantaneous/time-delay AC over current relay denoted as 50/51[2]

Note 4: For function descriptions, refer to IEEE standards reference library or American Standards C37.2 2008. For understanding and learning application of these devices, many technical reference books have been published and are available. These device numbers and their application are typically in the domain of electrical engineers, specifically power generation, transmission or distribution system engineers in regards to safely controlling and protecting users and equipment[2]

Note 5: For device 16, the suffix letters further define the device: the first suffix letter is S for Serial or E for Ethernet. The subsequent letters are: C Security Processing Function VPN, Encryption F Firewall or message Filter M Network Managed Function R Router S Switch T Telephone Component. So a managed Ethernet switch would be 16ESM