1、09-10 26 29 11 - 1 SECTION 26 29 11 MOTOR STARTERS SPEC WRITER NOTE: Delete between / - / if not applicable to project. Also delete any other item or paragraph not applicable to the section and renumber the paragraphs. PART 1 - GENERAL 1.1 DESCRIPTION All motor starters and variable speed motor cont
2、rollers, including installation and connection (whether furnished with the equipment specified in other Divisions or otherwise), shall meet these specifications. 1.2 RELATED WORK A. Other sections which specify motor driven equipment, except elevator motor controllers. /B. Section 13 05 41, SEISMIC
3、RESTRAINT REQUIREMENTS FOR NON-STRUCTURAL COMPONENTS: Requirements for seismic restraint for nonstructural components./ /C. Section 25 10 10, ADVANCED UTILITY METERING: For electricity metering installed in motor starters./ D. Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS: General elec
4、trical requirements and items that are common to more than one Section of Division 26. E. Section 26 05 26, GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS: Requirements for personnel safety and to provide a low impedance path for possible ground fault currents. F. Section 26 24 19, MOTOR-CONTROL CENTE
5、RS and Section 26 24 21, MOTOR-CONTROL PANELBOARDS: For multiple motor control assemblies, which include motor starters. 1.3 QUALITY ASSURANCE Refer to Paragraph, QUALIFICATIONS, in Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS. 1.4 SUBMITTALS A. Submit in accordance with Section 26 05
6、 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS: B. Shop Drawings: 1. Sufficient information, clearly presented, shall be included to determine compliance with drawings and specifications. 2. Include electrical ratings, dimensions, weights, mounting details, materials, running over current protection
7、, size of enclosure, over Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-09-10 26 29 11 - 2 current protection, wiring diagrams, starting characteristics, interlocking and accessories. C. Manuals: 1. Submit, simultaneously with the shop drawings, co
8、mpanion copies of complete maintenance and operating manuals, including technical data sheets, wiring diagrams and information for ordering replacement parts. a. Wiring diagrams shall have their terminals identified to facilitate installation, maintenance and operation. b. Wiring diagrams shall indi
9、cate internal wiring for each item of equipment and interconnections between the items of equipment. c. Elementary schematic diagrams shall be provided for clarity of operation. 2. Two weeks prior to the project final inspection, submit four copies of the final updated maintenance and operating manu
10、al to the Resident Engineer. D. Certification: Two weeks prior to final inspection, unless otherwise noted, submit four copies of the following certifications to the Resident Engineer: 1. Certification that the equipment has been properly installed, adjusted, and tested. 2. Certification by the manu
11、facturer that medium voltage motor controller(s) conforms to the requirements of the drawings and specifications. This certification must be furnished to the Resident Engineer prior to shipping the controller(s) to the job site. 1.5 APPLICABLE PUBLICATIONS A. Publications listed below (including ame
12、ndments, addenda, revisions, supplements and errata) form a part of this specification to the extent referenced. Publications are referenced in the text by basic designation only. B. Institute of Electrical and Electronic Engineers (IEEE): 519 Recommended Practices and Requirements for Harmonic Cont
13、rol in Electrical Power Systems C37.90.1 . Standard Surge Withstand Capability (SWC) Tests for Protective Relays and Relay Systems C. National Electrical Manufacturers Association (NEMA): ICS 1 Industrial Control and Systems General Requirements ICS 1.1 Safety Guidelines for the Application, Install
14、ation and Maintenance of Solid State Control Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-09-10 26 29 11 - 3 ICS 2 Industrial Control and Systems, Controllers, Contactors and Overload Relays Rated 600 Volts DC ICS 6 Industrial Control and Systems
15、Enclosures ICS 7 Industrial Control and Systems Adjustable-Speed Drives ICS 7.1 Safety Standards for Construction and Guide for Selection, Installation and Operation of Adjustable-Speed Drive Systems D. National Fire Protection Association (NFPA): 70 . National Electrical Code (NEC) E. Underwriters
16、Laboratories Inc. (UL): 508 Industrial Control Equipment PART 2 - PRODUCTS SPEC WRITER NOTE: Make material requirements agree with applicable requirements specified in the referenced Applicable Publications. Update and specify only that which applies to the project. 2.1 MOTOR STARTERS, GENERAL A. Sh
17、all be in accordance with the requirements of the IEEE, NEC, NEMA (ICS 1, ICS 1.1, ICS 2, ICS 6, ICS 7 and ICS 7.1) and UL. B. Shall have the following features: 1. Separately enclosed unless part of another assembly. 2. Circuit breakers and safety switches within the motor controller enclosures sha
18、ll have external operating handles with lock-open padlocking provisions and shall indicate the ON and OFF positions. 3. Motor control circuits: a. Shall operate at not more than 120 volts. b. Shall be grounded except as follows: 1) Where isolated control circuits are shown. 2) Where manufacturers of
19、 equipment assemblies recommend that the control circuits be isolated. c. Incorporate a separate, heavy duty, control transformer within each motor controller enclosure to provide the control voltage for each motor operating over 120 volts. d. Incorporate over current protection for both primary and
20、 secondary windings of the control power transformers in accordance with the NEC. 4. Overload current protective devices: /a. Overload relay (thermal or induction type. / Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-09-10 26 29 11 - 4 /b. Overload
21、 relay (solid state type. / c. One for each pole. d. Manual reset on the door of each motor controller enclosure. e. Correctly sized for the associated motors rated full load current. f. Check every motor controller after installation and verify that correct sizes of protective devices have been ins
22、talled. g. Deliver four copies of a summarized list to the Resident Engineer, which indicates and adequately identifies every motor controller installed. Include the catalog numbers for the correct sizes of protective devices for the motor controllers. 5. Hand-Off-Automatic (H-O-A) switch is require
23、d unless specifically stated on the drawings as not required for a particular starter. H-O-A switch is not required for manual motor starters. 6. Incorporate into each control circuit a 120-volt, solid state time delay relay (ON delay), minimum adjustable range from 0.3 to 10 minutes, with transient
24、 protection. Time delay relay is not required where H-O-A switch is not required. 7. Unless noted otherwise, equip with not less than two normally open and two normally closed auxiliary contacts. Provide green run pilot lights and H-O-A control devices as indicated, operable at front of enclosure wi
25、thout opening enclosure. Push buttons, selector switches, pilot lights, etc., shall be interchangeable. 8. Enclosures: a. Shall be the NEMA types shown on the drawings for the motor controllers and shall be the NEMA types which are the most suitable for the environmental conditions where the motor c
26、ontrollers are being installed. b. Doors mechanically interlocked to prevent opening unless the breaker or switch within the enclosure is open. Provision for padlock must be provided. c. Enclosures shall be primed and finish coated at the factory with the manufacturers prime coat and standard finish
27、. C. Motor controllers incorporated with equipment assemblies shall also be designed for the specific requirements of the assemblies. SPEC WRITER NOTE: A/E shall indicate sufficient information (make, model, etc.) on drawings regarding existing motor control centers for the Contractor to obtain new
28、components indicated on the contract documents. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-09-10 26 29 11 - 5 D. For motor controllers being installed in existing motor control centers or panelboards, coordinate with the existing centers or pane
29、lboards. E. Additional requirements for specific motor controllers, as indicated in other sections, shall also apply. F. Provide a disconnecting means or safety switch near and within sight of each motor. Provide all wiring and conduit required to facilitate a complete installation. 2.2 MANUAL MOTOR
30、 STARTERS A. Shall be in accordance with applicable requirements of 2.1 above. B. Manual motor starters. 1. Starters shall be general-purpose Class A, manually operated type with full voltage controller for induction motors, rated in horsepower. 2. Units shall include overload / and low voltage / pr
31、otection, red pilot light, / NO / NC / auxiliary contact / and toggle operator. C. Fractional horsepower manual motor starters. 1. Starters shall be general-purpose Class A, manually operated with full voltage controller for fractional horsepower induction motors. 2. Units shall include thermal over
32、load protection, red pilot light and toggle operator. D. Motor starting switches. 1. Switches shall be general-purpose Class A, manually operated type with full voltage controller for fractional horsepower induction motors. 2. Units shall include thermal overload protection, red pilot light / low vo
33、ltage protection /, / NO / NC / auxiliary contact / and toggle operator. 2.3 MAGNETIC MOTOR STARTERS A. Shall be in accordance with applicable requirements of 2.1 above. B. Starters shall be general-purpose, Class A magnetic controllers for induction motors rated in horsepower. Minimum size 0. C. Wh
34、ere combination motor starters are used, combine starter with protective or disconnect device in a common enclosure. D. Provide phase loss protection for each starter, with contacts to de-energize the starter upon loss of any phase. E. Unless otherwise indicated, provide full voltage non-reversing a
35、cross-the-line mechanisms for motors less than 75 HP, closed by coil action and opened by gravity. For motors 75 HP and larger, provide reduced voltage starters. Equip starters with 120V AC coils and individual control transformer unless otherwise noted. Locate “reset“ button to be accessible withou
36、t opening the enclosure. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-09-10 26 29 11 - 6 2.4 REDUCED VOLTAGE MOTOR CONTROLLERS A. Shall be in accordance with applicable portions of 2.1 above. B. Shall be installed as shown for motors on the contra
37、ct drawings. C. Shall have closed circuit transition for the types which can incorporate such transition. D. Shall limit inrush currents to not more than 70 percent of the locked rotor currents. E. Provide phase loss protection for each starter, with contacts to de-energize the starter upon loss of
38、any phase. 2.5 MEDIUM VOLTAGE MOTOR CONTROLLERS A. Shall be in accordance with applicable portions of 2.1 above. B. Shall have the following additional features: 1. Metal enclosed, free-standing, air break, reduced voltage, primary reactor, drawout type combined with fused disconnect switch. 2. Shal
39、l include the following components: a. Three pole, air break, drawout type, start contactor. b. Three pole, air break, drawout type, run contactor. Primary reactor with taps for 50, 65 and 80 percent of line voltage. c. Definite time transfer relay. d. Three current limiting, power type fuses. e. Co
40、ntrol power transformer, protected with current limiting fuses. f. Three current transformers and over current protective devices. g. Zero-sequence current transformers and associated devices for ground fault protection. h. Under voltage protection. i. Protection against single phasing. j. Stator th
41、ermal protection. k. Indicating type ammeter and selector switch. l. Red and green indicating lights. 3. A separate enclosure for each motor controller. 4. Shall be isolated by an externally operated mechanism. The secondary of the control power transformer shall also be opened by that device. 5. Su
42、itable and adequate compartments and barriers for medium voltage components. Isolate the power bus from the normally accessible compartments. 6. Medium voltage line receptacles shall be shuttered automatically when conductors are in the disconnected position and the disconnection shall be clearly in
43、dicated. 7. Interlocks shall include prevention of the following: a. Inadvertent operation of the isolating mechanism under load. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-09-10 26 29 11 - 7 b. Opening of the medium voltage compartment before t
44、he controller is isolated. c. Closing of the line contactor while the door is open. 8. Current and potential transformers for operating remote recording watt-hour and demand meters and the indicating meters at the motor controller. 9. Lock-open padlocking provisions. 10. Furnish accessories as recom
45、mended by the manufacturer of the motor controllers to facilitate convenient operation and maintenance of the controllers. C. Interrupting ratings shall be not less than the maximum short circuit currents available where the controllers are being installed or as indicated on the drawings. SPEC WRITE
46、R NOTE: Verify that variable speed controller is located adjacent to motor. Controller is combination type and serves as disconnect means for motor and controller. Motors shall be in accordance with the following voltage/HP ratings: 200 volt 5040 W (5 HP) Min 460 volt 239 KW (300 HP) Max 2.6 VARIABL
47、E SPEED MOTOR CONTROLLERS A. Shall be in accordance with applicable portions of 2.1 above. B. Shall be solid state, micro processor-based with adjustable frequency and voltage, three phase output capable of driving standard NEMA B design, three phase alternating current induction motors at full rate
48、d speed. The drives shall utilize a full wave bridge design incorporating diode rectifier circuitry with pulse width modulation (PWM). Other control techniques are not acceptable. Silicon controlled rectifiers (SCR) shall not be used in the rectifying circuitry. The drives shall be designed to be us
49、ed on variable torque loads and shall be capable of providing sufficient torque to allow the motor to break away from rest upon first application of power. C. Unit shall be capable of operating within voltage parameters of plus 10 to minus 10 percent of line voltage, and be suitably rated for the full load amps of the maximum watts (HP) within its class. SPEC WRITER NOTE: Require duration of
