Auto Transformer. Installation and Userʼs Manual. Model: AT. Please contact Customer Support at VOLTS for further information.

Transcription

1 Auto Transformer Installation and Userʼs Manual Model: AT Rev Please contact Customer Support at VOLTS for further information. Copyright all rights reserved by Nextek Power Systems, Inc. in the United States and in other countries throughout the world.

2 ABOUT NEXTEK POWER SYSTEMS SAFETY STANDARDS & REQUIREMENTS PERSONNEL QUALIFICATIONS INSTALLATION QUALIFICATIONS PRODUCT SPECIFICATIONS CAUTIONS AND WARNINGS INSTALLATION PROCEDURE Preparing The Auto-Transformer For Mounting Mounting The Auto-Transformer Wiring The Auto-Transformer TROUBLESHOOTING 13 For more information: Nextek Power Systems Tel: Burroughs Street Toll free: 1 (877) 24-VOLTS Detroit, Michigan Fax: info@nextekpower.com 2 Copyright all rights reserved by Nextek Power Systems, Inc. in the United States and in other countries throughout the world.

3 ABOUT NEXTEK POWER SYSTEMS Nextek Power Systems AC/DC integration technology represents a breakthrough in onsite electrical management, combining the availability of AC power with the quality and efficiency of a DC supply. NEXTEK PRODUCT BENEFITS Easy conversion of AC lighting fixtures to DC-powered units Easy conversion of AC grid power into DC power for commercial building applications Highly efficient management of peak loads Future-proof lighting and other systems to be developed Nextek Power Systems Direct Coupling Technology, directly connects clean power generated at a building to its electronic loads inside cutting down on overall power consumption, boosts electricity generated and stored on-site, and delivers a robust renewable energy ready network. DISCLAIMER Nextek Power Systems has made every reasonable effort to ensure the accuracy of the information in this catalog. Nextek Power Systems does not guarantee that the information is error free, nor do we make any other representation, warranty or guarantee that the information is accurate, correct, reliable or current. Nextek Power Systems, Inc. reserves the right to make any adjustments to the information contained herein at any time without notice. The specifications in this catalog are for reference purposes only and are subject to change without notice. Consult Nextek Power Systems for the latest design specifications. All trademarks are either the exclusive property of Nextek Power Systems, Inc. or other companies. Copyright by Nextek Power Systems, Inc. in the United States and other countries throughout the world. Copyright all rights reserved by Nextek Power Systems, Inc. in the United States and in other countries throughout the world. 3

4 1.0 SAFETY 1.1 SAVE THESE INSTRUCTIONS This manual contains important safety and operating instructions for the Nextek Auto-Transformer, Model AT. The following symbols are used throughout this manual to indicate potentially dangerous conditions or mark important safety instructions: DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. WARNING: Indicates a potentially dangerous condition. Use extreme caution when performing this task. CAUTION: Indicates a critical procedure for safe and proper operation of the controller. NOTE: Indicates a procedure or function that is important for the safe and proper operation of the controller. 1.2 Before using the Model AT, read all instructions and cautionary markings. 1.3 Electrical hazards are probably the most common hazards throughout the industry. Virtually all workplaces have electrical installations and use electricity. 1.4 It is very important that all industry employees be familiar with electrical hazards and know how to protect themselves when working on, near, or with electricity. In most cases, industry electrical and electronic equipment is designed for both maximum safety and efficiency. However, potentially hazardous conditions such as inadvertent contact with hazardous voltages may exist while performing servicing and maintenance, handling materials, or cleaning. 1.5 The improper use of electrical extension cords and portable electrical equipment can result in hazardous exposure. 1.6 WARNING - RISK OF ELECTRICAL SHOCK 1.7 DANGER TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, CAREFULLY FOLLOW THESE INSTRUCTIONS Mount the Model AT indoors. Prevent exposure to the elements and do not allow water to enter the unit. 4 Copyright all rights reserved by Nextek Power Systems, Inc. in the United States and in other countries throughout the world.

5 2.0 STANDARDS AND REQUIREMENTS 2.0 STANDARDS AND REQUIREMENTS 2.1 All AC cable types must meet all local and national codes. 2.2 Shut off all AC breakers before installing any unit into the field. 2.3 Torque all the Auto-Transformer ground terminals to 35 inch-pounds (4NM). 2.4 AC Wiring to Auto-Transformer: Use a minimum of 12 AWG, 3 conductor cables to reduce losses and ensure high performance Copper wiring must be rated at 60 C or higher The Auto-Transformer must be protected by a circuit breaker. 3.0 PERSONNEL QUALIFICATIONS 3.1 Installation work and electrical wiring of permanently-connected power units must be performed only by qualified service personnel in accordance with all applicable codes and standards, including fire-rated construction. 4.0 INSTALLATION QUALIFICATIONS 4.1 Every work environment should provide a safe place for every employee, which includes protecting the employee from electrical hazards such as fault currents to ground. 4.2 When an electrical ground fault occurs, the current flows through the path having minimum impedance to ground. It is imperative that an employee does not inadvertently become the conductor of the current. 4.3 Two approved methods of protecting the worker from a ground fault, in addition to other requirements for equipment-grounding conductors, are: Use of ground fault circuit interrupters (GFCI) An assured equipment grounding conductor program 4.4 Installers should be advised: These installation instructions are for use by qualified personnel only The equipment contains AC voltages. NOTE: Installers must reference the National Electric Code to ensure proper system wiring and grounding compliance. In addition, all state and federal Occupational Safety and Health Administration (OSHA) guidelines and regulations must be followed. Copyright all rights reserved by Nextek Power Systems, Inc. in the United States and in other countries throughout the world. 5

6 4.0 GENERAL REQUIREMENTS NOTE: INSTALLERS MUST REFERENCE THE SPECIFIC SITE SCOPE AND PROJECT DRAWINGS FOR ADDITIONAL INFORMATION AND CONSIDERATIONS, INCLUDING THE SYSTEM LAYOUT AND ANY RELATED ELECTRICAL DRAWINGS. 4.5 Tools Standard construction and electrical tools along with basic electrical safety and testing instruments are required for the installation of the combiner box. In addition to this, installation requires the following: Phillips Screwdriver Torque Wrench Wire Strippers 6 Copyright all rights reserved by Nextek Power Systems, Inc. in the United States and in other countries throughout the world.

7 5.0 PRODUCT SPECIFICATIONS COMPLIANCE UL1012 Power Units Other Than Class 2 RoHS Compliant (Pending) Transformer meets UL 506 and CSA C22.2 No. 66 MECHANICAL Weight 5.0 pounds Mounting Orientation Flat vertical surface using 4 screws Thermal Switch Shuts off operation at 120 C at transformer Operational Environmental Limits Temperature Range 0 C 50 C Temperature Rise at Rated Current: 54 C Humidity: 90% RH non-condensing Storage Environmental Limits Temperature Range -40 C 120 C Humidity: 90% RH non-condensing (transport and storage in protective container) Construction Made of 16 gauge steel Meets NEMA/EEMAC Type 1 requirements ELECTRICAL Input Power 277 VAC Rated Primary Current: 7.3 A Rated Frequency: 60 Hz Output 240 VAC 2 KVA Efficiency Quiescent Power =.78W 277 VAC input; 1600W output Copyright all rights reserved by Nextek Power Systems, Inc. in the United States and in other countries throughout the world. 7

8 6.0 CAUTIONS AND WARNINGS 6.1 The Nextek Auto-Transformer connection should only be performed by trained service personnel. 6.2 Follow installation procedure to install and to power up the system. 6.3 The Nextek Auto-Transformer is designed to keep the temperature of its surface from rising to more than 120 C. 6.4 Treat any conductors and parts of electric equipment as energized that have been de-energized, but have not been properly locked or tagged out and tested to a zero energy state. LOCKOUT/TAGOUT SHOULD ALWAYS BE USED. 6.5 AC connections are made inside the Nextek Auto-Transformer using wire connectors. 6.6 The Nextek Auto-Transformer does not come with the AC power cord. The AC power cord must be a three 12 AWG conductor cable. Refer to Table 6.1 for list of acceptable equivalent cords Basic Cord Type Other Suitable Types TS TST SP-2 SPE-2, SPT-2 SP-3 SPE-3, SPT-3 SV SVE, SVO, SVOO, SVT, SVTO, SVTOO SJ SJE, SJO, SJOO, SJT, SJTO, SJTOO SE SE, SO, SOO, ST, STO, STOO Table 6.1 Suitable Cord Types 6.7 There are no operator adjustable voltage selectors in this system. 8 Copyright 2012 all rights reserved by Nextek Power Systems, Inc. in the United States and in other countries throughout the world.

9 7.0 INSTALLATION PROCEDURE 7.1 Preparing The Auto-Transformer For Mounting Be sure to turn off all main power before starting this project, using the Lock Out/Tag Out method. Refer to the facility electrical drawings to identify the mounting locations and any specific electrical location requirements or special instructions. You must mount the autotransformer in a position/ location where it is easily accessible Enclosed in the shipping container are: Transformer housing Ground kit & wire connectors (right) Additional material required for mounting (not included) Four Hex Flange Head (Lag Screws) 1/4 x 1-1/2 long The input power cord must be a three 12 AWG conductor cable The output power cord must be a three 12 AWG conductor cable Removing the front panel Loosen the four front screws of the enclosure Remove the front panel. Copyright all rights reserved by Nextek Power Systems, Inc. in the United States and in other countries throughout the world. 9

10 7.0 INSTALLATION PROCEDURE Grounding kit installation instructions: Drill a 7/32 hole in the enclosure at the top of the enclosure Remove paint where the grounding connector will contact the enclosure to insure electrical continuity Install the grounding connector with the bolt, star washer and hex nut provided. 10 Copyright all rights reserved by Nextek Power Systems, Inc. in the United States and in other countries throughout the world.

11 7.0 INSTALLATION PROCEDURE 7.2 Mounting The Auto-Transformer The auto-transformer is designed to be mounted to plywood Use four hex flange head (Lag Screws) 1/4 x 1-1/2 long to secure the auto-transformer using all four holes inside back side of the enclosure, making sure the unit is straight and level. 7.3 Wiring The Auto-Transformer Turn off power before installing or removing any connectors Strip wires 5/ Cable Insertion into enclosure Using the side punch-outs, insert the input and output cables through the holes using the appropriate sized conduit Connection Hold stripped wires together with ends even and align any frayed strands Push wires into connector and screw on until two twists are visible in wires Input voltage (277 VAC) L-1 Common tied to red wire on the auto-transformer L-2 Feed tied to black wire on the auto-transformer N Ground tied to chassis utilizing the grounding kit Output voltage (240 VAC) L-3 Common tied to red wire on the auto-transformer L-4 Feed tied to brown wire on the auto-transformer N Ground tied to chassis utilizing the grounding kit Copyright all rights reserved by Nextek Power Systems, Inc. in the United States and in other countries throughout the world. 11

12 7.0 INSTALLATION PROCEDURE Installing the front panel Place the panel over the four screws Tighten the screws down. 12 Copyright 2012 all rights reserved by Nextek Power Systems, Inc. in the United States and in other countries throughout the world.

13 8.0 TROUBLESHOOTING FAULT No Power at the Ouput Device PROCEDURE Make sure the power circuit feeding the device is turned on. Make sure the circuit is wired properly Safely and cautiously check to make sure the device has not overheated from an excessive current draw. If it has, you will need to turn off the output to allow the device to cool. The output power draw will need to be reduced to prevent overheating Copyright all rights reserved by Nextek Power Systems, Inc. in the United States and in other countries throughout the world. 13

14 For more information: Nextek Power Systems Tel: Burroughs Street Toll free: 1 (877) 24-VOLTS Detroit, Michigan Fax: info@nextekpower.com