DOCSLIB.ORG

Electrical Legend Abbreviations

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Electrical Legend Abbreviations 1 2 3 4 5 6 ELECTRICAL LEGEND ABBREVIATIONS SYMBOL DESCRIPTION SYMBOL DESCRIPTION ABBREVIATIONS DESCRIPTION ABBREVIATIONS DESCRIPTION CONNECTION POINT TO EQUIPMENT SPECIFIED. FURNISHED CONTACT - NORMALLY OPEN WITH NEMA SIZE A AMMETER, AMPERE, AMBER M MAGNETIC CONTACTOR 1 AND INSTALLED UNDER OTHER DIVISIONS. RACEWAY, INDICATED AS APPLICABLE AF AMPERE FRAME COIL CONDUCTOR AND CONNECTION SPECIFIED IN DIVISION 16. AFD ADJUSTABLE FREQUENCY MCC MOTOR CONTROL CENTER CONTACT - NORMALLY CLOSED COORDINATE FINAL CONNECTION WITH EQUIPMENT DRIVE MH MANHOLE, METAL HALIDE SUPPLIER. AFF ABOVE FINISHED FLOOR MO MOTOR OPERATOR OVERLOAD RELAY HEATER AFG ABOVE FINISHED GRADE MS MOTOR STARTER MOTOR, SQUIRREL CAGE INDUCTION, HORSEPOWER AS AMMETER SWITCH, MT MOUNT M MAGNETIC STARTER WITH NEMA SIZE INDICATED INDICATED ON ONE-LINE DIAGRAM, (M) SHOWN ON PLANS 1 AMPERE SENSOR MTD MOUNTED ASU AIR SUPPLY UNIT LUMINAIRE, SEE SCHEDULE CIRCUIT BREAKER, MAGNETIC TRIP ONLY, FRAME A 1 AT AMPERE TRIP N NEUTRAL 100/M SIZE SHOWN, 3 POLE UNLESS INDICATED OTHERWISE. ATC AUTOMATIC THROWOVER NA NON-AUTOMATIC CONTROL NC NORMALLY CLOSED 4 LUMINAIRE AND POLE, SEE SCHEDULE CIRCUIT BREAKER, THERMAL MAGNETIC TRIP SHOWN, ATS AUTOMATIC TRANSFER NL NIGHT LIGHT 400 CH2M HILL 3 POLE UNLESS INDICATED OTHERWISE. SWITCH NO NORMALLY OPEN c a or SMALL LETTER SUBSCRIPT AT SWITCH AND LUMINAIRE S NP NAMEPLATE 2a INDICATES SWITCHING. SUBSCRIPT NUMBER SWITCH - CURRENT RATING INDICATED, 3 POLE BC BARE COPPER AT LUMINAIRE INDICATES CIRCUIT IN PANELBOARD. 100 UNLESS INDICATED OTHERWISE. BRKR BREAKER OC ON CENTER LA-2 HOME RUN - DESTINATION SHOWN OL OVERLOAD RELAY FUSE - RATING INDICATED or EXPOSED CONDUIT AND CONDUCTORS* 225 C CONDUIT, CONTACTOR G CB CIRCUIT BREAKER PB PULL BOX, PUSH BUTTON or CONCEALED CONDUIT AND CONDUCTORS* G GROUND CC CONTROL CABLE SWITCH CKT CIRCUIT PC PHOTOCELL NOTE: CPT CONTROL POWER PH PHASE * ALL UNMARKED CONDUIT RUNS CONSIST OF TWO NO.12 CONDUCTORS IN TRANSFORMER, SECONDARY VOLTAGES, PHASE AND TRANSFORMER PMR PHASE MONITOR RELAY or CONDUIT. RUNS MARKED WITH CROSSHATCHES INDICATE NUMBER OF NO. 12 RATING INDICATED AS APPLICABLE CR CONTROL RELAY PNL PANEL CONDUCTORS. CROSSHATCH WITH SUBSCRIPT "G" INDICATES GREEN GROUND 120V CRE CORROSION-RESISTANT PS PRESSURE SWITCH WIRE. SIZE CONDUIT ACCORDING TO SPECIFICATIONS AND APPLICABLE CODE. 120/240V CRS COATED RIGID STEEL PT POTENTIAL TRANSFORMER 15 KVA, 1PH CONDUIT PVC POLYVINYL CHLORIDE GROUND TEST WELL CT CURRENT TRANSFORMER CONDUIT PUSH-BUTTON SWITCH, MOMENTARY CONTACT, GROUND ROD NORMALLY OPEN DC DIRECT CURRENT R RED DIV DIVISION RCPT RECEPTACLE CROSSHATCHES WITH BAR INDICATE #10 CONDUCTOR. PUSH-BUTTON SWITCH, MOMENTARY CONTACT, REQD REQUIRED SIZE CONDUIT ACCORDING TO SPECIFICATIONS NORMALLY CLOSED E EMPTY RM REMOTE MULTIPLEXER AND APPLICABLE CODE. EO ELECTRIC OPERATOR RS RIGID STEEL CONDUIT PUSH BUTTON SWITCH, MAINTAINED CONTACTS WITH EQPT EQUIPMENT RT REMOTE TELEMETRY B CONDUIT DOWN MECHANICAL INTERLOCK ESS EMERGENCY SHUTDOWN RVNR REDUCED VOLTAGE SWITCH NON-REVERSING CONDUIT UP ETM ELAPSED TIME METER RVR REDUCED VOLTAGE EXST EXISTING REVERSING DB DIRECT BURIED CONDUIT NORMALLY CLOSED, TIME DELAY OPENING FDR FEEDER SA SURGE ARRESTOR S SWITCH: SCCR SHORT CIRCUIT CURRENT NORMALLY CLOSED, TIME DELAY CLOSING F FUSE WP- WEATHERPROOF FLR FLOOR RATING FLUOR FLUORESCENT S/N SOLID NEUTRAL CONVENIENCE RECEPTACLE - DUPLEX UNLESS SPECIFIED FVNR FULL VOLTAGE SPD SPEED NORMALLY OPEN, TIME DELAY CLOSED OTHERWISE NON-REVERSING SST STAINLESS STEEL WP- WEATHERPROOF C- CLOCK HANGER FVR FULL VOLTAGE SV SOLENOID VALVE TL- TWIST LOCK CRE- CORROSION RESISTANT NORMALLY OPEN, TIME DELAY OPEN REVERSING SW SWITCH CONTROL STATION, SEE CONTROL DIAGRAMS FOR TYPE. CS REMOTE DEVICE G GREEN, GROUND T THERMOSTAT GALV GALVANIZED TB TERMINAL BOARD CONDUIT FITTING OR JUNCTION BOX O GFCI GROUND FAULT CIRCUIT TC TIME CLOSE J SELECTOR SWITCH - MAINTAINED CONTACT - CHART INTERRUPTER TD TEMPERATURE DETECTOR H A IDENTIFIES OPERATION: GFR GROUND FAULT RELAY RELAY 30 NONFUSED DISCONNECT SWITCH, SIZE INDICATED, 3 POLE UNLESS INDICATED OTHERWISE. X00 GND GROUND TDR TIME DELAY RELAY POSITION TJB TERMINAL JUNCTION BOX FUSED DISCONNECT SWITCH, SIZE INDICATED 00X CKT HAND OFF AUTO H HIGH SPEED T.O. TIME OPEN TS AUTO TRANSFORMER 60/40 F (60/40, 60 = SWITCH RATING: 40 = FUSE RATING) 1 X O O X - CLOSED CONTACT HH HANDHOLE 3 POLE UNLESS INDICATED OTHERWISE. HID HIGH INTENSITY TEMPERATURE SWITCH 2 O O X O - OPEN CONTACT DISCHARGE TSP TWISTED SHIELDED PAIR HPS HIGH PRESSURE SODIUM TST TWISTED SHIELDED TRIAD 2 CONTACTOR, MAGNETIC, NEMA SIZE INDICATED. TYP TYPICAL CURRENT TRANSFORMER, NUMBER INDICATED HS HAND SWITCH C (3) COMBINATION (FUSE OR CIRCUIT BREAKER AS INDICATED) IC INTERRUPTING CAPACITY UH UNIT HEATER 2 MAGNETIC STARTER, NEMA SIZE INDICATED, SEE I &C INSTRUMENTATION AND UVR UNDER VOLTAGE RELAY CONTROL DIAGRAM. INDICATING LIGHT, PUSH-TO-TEST, LETTER CONTROL A INDICATES COLOR INCAND INCANDESCENT V VOLTMETER, VOLT METERING FACILITIES INST INSTANTANEOUS VFD VARIABLE FREQUENCY INDICATING LIGHT - LETTER INDICATES COLOR DRIVE A A - AMBER G - GREEN J, J-BOX JUNCTION BOX VS VOLTMETER SWITCH B - BLUE R - RED C - CLEAR W - WHITE K KEY INTERLOCK W WATT WHD WATTHOUR DEMAND L LIGHTING CONTACTOR, METER LOW SPEED WP WEATHERPROOF LOS LOCKOUT STOP PUSH THIS DOCUMENT, AND THE IDEAS DESIGNS INCORPORATED HEREIN, AS AN INSTRUMENT OF PROFESSIONAL SERVICE, IS PROPERTY CH2M HILL AND IS NOT TO BE USED, IN WHOLE OR PART, FOR ANY OTHER PROJECT WITHOUT THE WRITTEN AUTHORIZATION OF CH2MHILL. BUTTON XFDR TRANSDUCER LR LATCHING RELAY LT FLEX LIQUID TIGHT FLEX XFMR TRANSFORMER CONDUIT XFPR TRANSPONDER LTS LIGHTS NOTES: 1. THIS IS A STANDARD LEGEND SHEET. SOME SYMBOLS OR ABBREVIATIONS REUSE OF DOCUMENTS: MAY APPEAR ON THIS DRAWING AND NOT ON THE PLANS. D 2. FOR ADDITIONAL ABBREVIATIONS OF OTHER DIVISIONS (HVAC, MECHANICAL, FESS RO ION AND STRUCTURAL/ARCHITECTURAL), SEE OTHER LEGENDS. P A D L E .O R S G SS E A O N E W T M G S O S I I H K N I E G T E E R R 9-30-06 Exp. DSGN VERIFY SCALE GENERAL SHEET 4 TG OSSOWSKI HYDROGEOLOGIC, INC S E L L A A BAR IS ONE INCH ON T EC IC I DR A TR N OU-I MID-PLUME GROUNDWATER TREATMENT T R ORIGINAL DRAWING. DWG 01-G-04 E FO PM HAMLIN OF CALI FORT ORD CHK 0 1" MONTEREY, CALIFORNIA DATE JULY 2006 RL HAMILTON IF NOT ONE INCH ON ELECTRICAL LEGEND APVD THIS SHEET, ADJUST PROJ 343084.01 M WRAY NO. DATE REVISION BY APVD SCALES ACCORDINGLY. FILENAME: 01ng004d_343084.dgn PLOT DATE: 7/6/2006 PLOT TIME: 11:47:36 AM.
Load more

Recommended publications
  • Installation Instructions Rotary Pha Secon Ve Rters
    I N S T A L L A T I O N I N S T R U C T I O N S R O T A R Y PHA S E C O N VE R T E R S Notice Before permanently installing this converter make sure it will operate your load! You may temporarily connect your converter through the cover opening and satisfy yourself that your converter is adequate to operate your equipment before removing any knockouts or making permanent connections which would prevent return or exchange of this device. Be sure to read all the instructions carefully before you attempt installation–we cannot be responsible for the failure of an incorrect installation. Important–To the installing Licensed Electrician 1. The generated phase (T3) is red in color. DO NOT connect the generated phase (T3) to any single-phase loads, lights, or magnetic starter holding coils. 2. DO NOT connect a single-phase supply line to T3 3. This is a Delta 3-phase system. High voltage to ground (neutral) from T3 is perfectly normal and will not affect the normal operation of 3-phase equipment. W arning: Disconnect power before servicing or connecting any equipment! Electric shock can injure or kill you. This equipment should be installed in accordance with local and National Electric Codes. 1. Connect your rotary converter(s) and 3-phase equipment according to the appropriate wiring diagram following. Charts are provided which list wire, transformer and fusing recommendations for converters and 3-phase motors. Be sure all equipment is properly grounded per NEC Article 250.
    [Show full text]
  • Electrical Motor Controls Chapter 4 (Fourth Edition) Chapter 2 (Fifth Edition)
    Electrical Motor Controls Chapter 4 (Fourth Edition) Chapter 2 (Fifth Edition) 1. Which drawing type shows physical details as seen by the eye? 2. Which drawing is similar to a pictorial drawing but has circles or rectangles for components? 3. Which drawing type shows the circuitry necessary for operation but not the physical components or their location? 4. Which diagram shows the most direct path and logical sequence of operation? 5. What is necessary in an electrical circuit before current can flow? 6. What are the main parts of an electrical circuit? 7. What is the term used to describe a circuit where a person is required to initiate and action? 8. What is indicated when two wires cross with a dark black node on the point? 9. How is a start pushbutton indicated on a line diagram? 10. What are three actions that will stop the motor in Diagram 4-10 4th Edition (Diagram 2- 12 5th Edition) once it has started? 11. What type of contact is required on a float switch to maintain a water level in a tank? 12. What is the term used to describe an electrical device that converts electrical energy into linear mechanical force? 13. Which device is constructed similar to a solenoid but is designed to operate a set of contacts with the linear movement? 14. What is the difference between a Contactor and a Magnetic Starter? 15. What is the proper procedure when an overload condition occurs in a motor starter? 16. Which components are typically located inside a control panel? 17.
    [Show full text]
  • Introduction Types of Motor Starters
    Introduction Motor starters are one of the major inventions for motor control applications. As the name suggests, a starter is an electrical device which controls the electrical power for starting a motor. These electrical devices are also used for the purpose of stopping, reversing and protecting electric motors. The following are the two major components of a starter: 1. Contactor: The main function of the contactor is to control the electric current to the motor. A contactor can make or break power to the circuit. 2. Overload Relay: Overheating and drawing too much current can cause the motor to burn out and become practically useless. Overload relays prevent this from happening and protect the motor from any potential danger. A starter is an assembly of these two components, which allows it to turn on or off an electric motor or motor controlled electrical equipment. The starter also provides the necessary overload protection to the circuit. Types of Motor Starters There are several types of motor starters. However, the two most basic types of these electrical devices are: 1. Manual Starters Manual starters are devices that are operated manually. These starters are extremely easy and straightforward to operate and do not require expert intervention. The starter includes a button (or rotary knob) which enables a user to turn the connected equipment on or off. The buttons feature mechanical linkages, which make the contacts open or close, starting or stopping the motor. The following features of a manual starter make it a preferred choice over other types: • These starters deliver a safe, as well as economical operation.
    [Show full text]
  • Unified Facilities Criteria (Ufc) Interior Electrical Systems
    UFC 3-520-01 June 10, 2002 UNIFIED FACILITIES CRITERIA (UFC) INTERIOR ELECTRICAL SYSTEMS U.S. ARMY CORPS OF ENGINEERS NAVAL FACILITIES ENGINEERING COMMAND CANCELLED AIR FORCE CIVIL ENGINEER SUPPORT AGENCY (Preparing Activity) APPROVED FOR PUBLIC RELEASE: DISTRIBUTION UNLIMITED UFC 3-520-01 June 10, 2002 UNIFIED FACILITIES CRITERIA (UFC) UNIFIED FACILITIES GUIDE SPECIFICATIONS (UFGS) FORMAT STANDARD Any copyrighted material included in this UFC is identified at its point of use. Use of the copyrighted material apart from this UFC must have the permission of the copyright holder. Record of Changes (changes are indicated by \1\ ... /1/) Change No. Date Location CANCELLED UFC 3-520-01 June 10, 2002 FOREWORD The Unified Facilities Criteria (UFC) system is prescribed by MIL-STD 3007 and provides planning, design, construction, sustainment, restoration, and modernization criteria, and applies to the Military Departments, the Defense Agencies, and the DoD Field Activities in accordance with USD(AT&L) Memorandum dated 29 May 2002. UFC will be used for all DoD projects and work for other customers where appropriate. All construction outside of the United States is also governed by Status of forces Agreements (SOFA), Host Nation Funded Construction Agreements (HNFA), and in some instances, Bilateral Infrastructure Agreements (BIA.) Therefore, the acquisition team must ensure compliance with the more stringent of the UFC, the SOFA, the HNFA, and the BIA, as applicable. UFC are living documents and will be periodically reviewed, updated, and made available to users as part of the Services’ responsibility for providing technical criteria for military construction. Headquarters, U.S. Army Corps of Engineers (HQUSACE), Naval Facilities Engineering Command (NAVFAC), and Air Force Civil Engineer Support Agency (AFCESA) are responsible for administration of the UFC system.
    [Show full text]
  • Greenheck Motor Starters
    Greenheck Motor Starters The worlds best fans deserve the best motor protection. April 2015 Greenheck Motor Starters Engineers Are you ensuring the best quality and Specify Greenheck consistency with your motor starter motor starters specification? with your fan and: The motor starter you specify is critical to ensuring • Get the best and maximum protection for today’s high efficiency fan quickest respondingg motor mottor motors. It can also be used to interface with the protection available. building management system (BMS). Specifying • Select additional features for damper control Greenheck’s motor starter with your fan will ensure and fire safety system interfacing. that you get the best possible protection for your fan. • Greenheck’s CAPS program automatically sizes the motor starter to match the fan. Contractors Are you spending too much time Furnish Greenheck motor starters coordinating motor starter issues with your fan and: at the jobsite? • Eliminate sorting and guess work at the jobsite. Yes, it is possible to provide a superior motor starter, Starters ship with tags that match the fan. save money, and eliminate jobsite headaches. The • Significantly reduce installation time with Greenheck motor starter provides superior motor intelligent pre-engineered design and easy protection, has an attractive first cost, and ensures that plug-in terminal strip. the starter is correctly sized and tagged to match the • Fine tune with adjustable wide range electronic fan. Coordinating motor starters really can be that easy! overload protection. • Eliminate start-up delays. Communication Challenges Built-up Starters Communication breakdowns between the mechanical Even with good communication, problems can occur and electrical trades often lead to challenges with when “built-up” starters use mismatched, incomplete or motor starters.
    [Show full text]
  • Basic Electricity and Motor Controls (PDF)
    Basic Electricity and Motor Controls Chapter 7 What Is In This Chapter? 1. The basic components of an atom 2. Basic electrical units and symbols 3. The difference between a conductor and an insulator 4. The difference between open and closed circuits 5. The difference between AC and DC power 6. All explanation of single and three phase power 7. How electromagnets work 8. The function of common electrical components found in small water systems 9. Common pump electrical control components Key Words • AC • Electromagnetism • Insulator • Sine Wave • Amperage • Electron • Magnetic Breaker • Single Phase Power • Atom • EMF • Magnetic Starter • Three Phase Power • Brake Horsepower • Heater • Neutron • Voltage • Conductor • Hertz • Proton • DC • Horsepower • Resistance 224 Chapter 7 Basic Electricity and Motor Controls Electrical Basics In order to develop a basic understanding of how electrical equipment and motor controls work, we need to review basic electrical theory. And since electrical theory is based on atomic theory, we need to begin with a review of how atoms work. Atomic Theory The Atom – Nucleus 1 Atom – The smallest part of an ele- If we break matter into its smallest component, the base unit is the atom1. An atom ment that still retains the properties of that element. is composed of three components: the center is called the nucleus and contains two 2 Neutron – A neutrally charged types of particles, protons and neutrons. The protons have a positive charge and the particle in the nucleus of an atom. neutrons2 have a neutral or zero charge. This particle has the same weight as a proton, an atomic weight of 1.
    [Show full text]
  • Background Plan and One Line Symbols Wiring Device
    1 2 3 4 5 6 7 BACKGROUND PLAN AND ONE LINE SYMBOLS I.S.A. STANDARD LETTER FUNCTIONS GENERAL NOTES: SYMBOL DESCRIPTION SYMBOL FIRST LETTER SUCCEEDING LETTERS 1. ELECTRICAL MATERIALS AND EQUIPMENT ITEMS SHOWN IN LIGHT LINE WEIGHT ON THE DRAWINGS ARE CONTROL SWITCH (SEL. OR P.B.) SEE CIRCUITS FOR SPECIFIC TYPE A ANALYSIS, ANALOG ALARM B BURNER, FLAME BATCH EXISTING ITEMS TO REMAIN. ELECTRICAL MATERIALS AND EQUIPMENT ITEMS SHOWN IN HEAVY LINE F FL SEE CIRCUITS FOR SPECIFIC TYPE FLOAT SWITCH - FLOW SWITCH C CONDUCTIVITY, COMMAND CONTROL (FEEDBACK TYPE) WEIGHTS ARE NEW THIS CONTRACT. D DENSITY, SPECIFIC GRAVITY 2. ITEMS SHOWN CROSSHATCHED ON THE DRAWINGS ARE EXISTING ITEMS TO BE REMOVED. T M TEMPERATURE - HUMIDISTAT SWITCH (SUBSCRIPT=NO. OF STAGES) www.tetratech.com E VOLTAGE PRIMARY ELEMENT 3. INSTALL A SINGLE CONDUCTOR INSULATED (RHW, THHN, OR XHHW) COPPER GROUND WIRE IN EACH TEL: 734.665.6000 F FLOW RATE RATIO Ann Arbor, MI 48108 F L P V LIMIT (PROXIMITY TYPE) PRESSURE - VACUUM SWITCH CONDUIT, SIZE AS SHOWN ON DRAWINGS OR AS A MINIMUM PER THE NATIONAL ELECTRICAL CODE. THIS G GAGING GLASS GROUND WIRE SHALL BE CONNECTED AT EACH END TO THE EQUIPMENT GROUND. CONDUIT SHALL BE ELECTRICAL OR MECHANICAL ALTERNATOR (SEE WIRING) 710 Avis Drive, Suite 100 ALT H HAND, MANUAL HIGH 3/4" MIN. I CURRENT INDICATE 4. THE FOLLOWING COMPONENT IDENTIFICATION SHALL BE USED AS OS OVERLOAD SWITCH OR DEVICE J POWER SCAN APPROPRIATE: TB TERMINAL BOX K TIME, TIME SCHEDULE CONTROL (NO FEEDBACK) L LEVEL, LIGHT LOW 4.1. (F) FIELD MOUNTED NOT AT STARTER OR OTHER CONTROL PANELS.
    [Show full text]
  • Power Transmission Engineering DECEMBER 2016 ]————
    ® DECEMBER 2016 2017 BUYERS GUIDE HIGH-SPEED/LIGHT RAIL INFRASTRUCTURE UPGRADES AIR BEARINGS APPLICATIONS TIMING BELTS AND PULLEYS: DESIGN & INSTALLATION www.powertransmission.com Think Heading 1 Body copy text .Harum fugit aut aspellit omnihil simuste mporrume volumquam fugit harumqui insideipsam, ipsanditis doles earum resed eatithe sae dita dolorate box. rest eos ipsam, se maxim auten- explitate lam, quidesti officia dolor sam, volup- delest volum doloremquis mo tem. It rest tatis expliti onsecatio. Itat exero to beat hitio Sam et doluptat rercienet, optatat urissunt vendi nulpa et veri omnim nihillaccus, offictibus volupta tasped quassi cone rere perferf erecea- eatet lab idi tessint volore in reptinvellit quamus, quod minimet ut quid ut preribusdam ut opta volorem et am verum unt. simuste mporrume volumquam fugit harumqui Heading 2 Optimizedita dolorate restdriveline eos ipsam, se performancemaxim auten- with a Sam et doluptat rercienet, optatat urissunt rangedelest volumof proven doloremquis moSKF tem. Itgearbox rest solutions. volupta tasped quassi cone rere perferf erecea- quod minimet ut quid ut preribusdam ut opta With expertise in bearings, seals, – up to 20% more load for a given life of lubrication and condition monitoring, a gear unit. SKF can add value to the complete gear And when needed, complete gearbox unit by enhancing reliability and remanufacturing services from SKF can performance, while improving the cost- return gearboxes to like-new or even effectiveness of the complete solution. better-than-new condition. For example, upgraded SKF Explorer For more information, visit skf.com spherical roller bearings have enhanced wear and contamination resistance, and are better able to sustain external loads CONTENTS ® DECEMBER 2016 [40] 2017 BUYERS GUIDE! FEATURE ARTICLES [20] In Transit TECHNICAL ARTICLES High-Speed/Light Rail Infrastructure Upgrades Offer Unique Opportunities for PT [72] Baldor Basics: Motors Industry.
    [Show full text]
  • Federal Pump Full Accessory Catalog
    •••••••••••••• High Light Standard NEMA 1,4 & 12 Enclosure Multiplex control options Automatic control and alternation Thermal and Moisture Sensor alarm option Watertight control design For sewage, effluent, and industrial waste water 09/'16 SUPSD 06/'15 INTRODUCTION The Federal SBS Controller is designed for the control of submersible sewage and sump pumps. However, it can be used for level control of other types of pumps as well. The control system is consisted of a control panel for wall mounting and a pilot device. SBS controllers are available for use with single and duplex pump units SBS: Control Panel The standard SBS Control Panel is furnished in a SENSOR POWER NEMA-1 general purpose enclosure or a NEMA- 4 watertight enclosure. Other enclosure types are available when required by special job conditions. The mechanical hardware in the panel includes through-the-door local disconnect switches, H- O-A switches with integral pilot light, magnetic starters with overload, and adjustable alarm horn with silencing push button. For digital electronics, the panel includes a Programmable Logic Controller (for Pump-On and Pump-Off, automatic alternation, simultaneous pump operation, and high water alarm signaling), power relay, and control relay. Modular components mounted on rails were selected for the easy repair and replacement. Options for thermal and moisture sensor alarm previsions are available for the MSC(-QD), VSS(- QD) pump series. SBS: Pilot Device Compatible with, but not limited to, Federal The SBS Pilot Device includes the required Pump’s VSS(-QD), MSC(-QD), BGP(-QD), JJM(- number of normally open mechanical bulbs with QD), and VSSD in simplex and duplex design, a mounting bracket and junction box.
    [Show full text]
  • Electrical Level 3
    Electrical Level 3 Motor Controls 26311-14 Objectives When trainees have completed this lesson, they should be able to do the following: 1. Identify contactors and relays both physically and schematically and describe their operating principles. 2. Identify pilot devices both physically and schematically and describe their operating principles. 3. Interpret motor control wiring, connection, and ladder diagrams. 4. Select and size contactors and relays for use in specific electrical motor control systems. 5. Select and size pilot devices for use in specific electrical motor control systems. 6. Connect motor controllers for specific applications according to National Electrical Code® (NEC®) requirements. Motor Controls 26311-14 Performance Task 1. Make all connections for a magnetic motor controller, controlled by two pushbutton stations, including the connections for holding the circuit interlock. Motor Controls 26311-14 1.0.0 – 2.4.0 Introduction; Electromechanical Relays • Electromechanical relays (EMRs) are used in control circuits to operate low-current loads. • A typical double-pole, double-throw, single-break (DPDT-SB) open-frame power relay is shown here. Motor Controls 26311-14 1.0.0 – 2.4.0 Miniature Four-Pole, Double-Throw, Single-Break (4PDT-SB), Plug-In Relay Each of the poles on this relay has a normally closed (N.C.) and a normally open (N.O.) contact with a common single-break (SB) moving contact. Motor Controls 26311-14 1.0.0 – 2.4.0 Relay Contact and Pole Designations Motor Controls 26311-14 1.0.0 – 2.4.0 Examples of Relay Contact Configurations Motor Controls 26311-14 1.0.0 – 2.4.0 Relay Contact Form Identification Motor Controls 26311-14 1.0.0 – 2.4.0 Typical SPDT-SB Power Relay and Symbol Representation Motor Controls 26311-14 1.0.0 – 2.4.0 Detail View of a Power Relay • When a control signal voltage is applied to the relay solenoid coil, the magnetic field created through the core attracts the metal armature and draws it into contact with the core.
    [Show full text]
  • Chapter 1: ELECTRICAL SAFETY
    Chapter 1: ELECTRICAL SAFETY Answers to Chapter Review REVIEW QUESTIONS 1. True or False: A heating and air conditioning service technician can usually troubleshoot heating and air-conditioning systems without the voltage being supplied to the equipment. False 2. What is a live electrical circuit? a circuit that is being supplied with electrical potential (voltage) 3. Which of the following voltages will a refrigeration, heating, and air-conditioning technician come in contact with in the industry? d. all of the above 4. Electrical shock occurs when a person _________. c. becomes part of an electric circuit 5. What are the important elements of electrical safety when working around live circuits? • Respect electricity. • Do not be careless. • Make sure electrical power is disconnected from circuits that are being worked on if possible. • Learn the safety rules in section 1.7 of this chapter. 6. Which of the following conditions is the most dangerous and likely to cause serious injury? d. The technician touches a live conductor with his right hand and touches a ground with his left hand. 7. Which of the following is the standard by which electrical installations are measured in the United States? a. National Electrical Code ® 8. True or False: A current flow of 0.1 ampere or less could be fatal. True 1 Copyright © 2019 Cengage Learning 9. What type of ladder should the technician use on the job? e. both b and c 10. What precautions should be taken when you see a coworker receiving an electrical shock? Never touch a person who is receiving an electrical shock.
    [Show full text]
  • Schneider Electric DIGEST
    Table of Contents Section 22 Pressure, Vacuum, and Float Switches Electronic—Industrial New! Pressure Sensors XMLG 22-4 Electronic Pressure Switches XMLF 22-6 Electromechanical—Industrial XMLG XMLF Electronic Pressure Sensor Pressure Switch New! Pressure Switches XMLA, B, C, D Compact International 22-8 p. 22-4 p. 22-6 9012G General Industrial 22-11 9012G Machine Tool 22-12 9012G Dual Stage and Differential 22-13 Vacuum Switches 9016GAW, GAR 22-17 Electromechanical—Commercial FLOAT SWITCHESFLOAT 9012G 9012G Machine Tool Industrial Pressure Switch Pressure Switch Vacuum Switches 9016GVG 22-17 PRESSURE, VACUUM, AND p. 22-11 p. 22-12 Pressure Switches 9013FHG—Air Compressor 22-18 9013FRG, FSG, FYG—Water Pump 22-19 22 9013G—Air Compressor 22-20 Float Switches 9036D, G—Open Tank 22-21 9036FG—Open Tank 22-22 9037E—Closed Tank 22-22 XMLA Electromechanical 9016G 9037H—Closed Tank 22-23 Pressure Switch Vacuum Switch p. 22-8 p. 22-17 9038A—Alternators, Open Tank 22-24 9038C, D—Alternators, Closed Tank 22-24 Renewal Parts Renewal Part Kits Class 9998, for Class 9012–9038 22-26 9013F 9013G Water Pump Switch Air Compressor Switch p. 22-19 p. 22-20 9036D 9037H Open Tank Float Switch Closed Tank Float Switch p. 22-21 p. 22-23 © 2009 Schneider Electric 22-1 All Rights Reserved Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com Pressure, Vacuum, and Selection Guide Float Switches Class 9012 / Refer to Catalog 9012CT9701 or 9014CT0201
    [Show full text]