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Hubbell Dual-Lite Trident TRF 924 User Manual

65-125kva transformer cabinet
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TRIDENT TRF 924
65-125kVA Transformer Cabinet
USER MANUAL
003-2603

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  • Page 1 TRIDENT TRF 924 65-125kVA Transformer Cabinet USER MANUAL 003-2603...
  • Page 2 No reproduction of any part of this manual, even partial, is permitted without the authorization of Dual-Lite. Dual-Lite reserves the right to modify the product described herein, in order to improve it, at any time and without notice. Hubbell Lighting, Inc 701 Millennium Blvd Greenville, SC 29607 Web site: www.dual-lite.com/...
  • Page 3 SAFETY WARNINGS IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important instructions that you should follow during installation and maintenance of the transformer cabinet. Please read all instructions before operating the equipment and save this manual for future reference. READ AND FOLLOW ALL SAFETY INSTRUCTIONS ...
  • Page 4 DANGER This equipment contains lethal voltages. All repairs and service should only be performed by authorized service personnel. There are no user serviceable parts inside this equipment. Operation of switches and breakers require access to the cabinet interior and should only be performed by qualified personnel exercising appropriate caution.
  • Page 5 Table 6 of this manual. WARNING The UPS associated with this equipment contains batteries. Batteries can present a risk of electrical shock or burn from high short circuit current. Observe proper precautions. Servicing should only be performed by qualified service personnel knowledgeable of batteries and the required precautions.

  • Page 6: Table Of Contents

    Table of Contents SAFETY WARNINGS ......................iii   1 Introduction ........................1   1.1 Overview ........................1   1.2 Applicability ......................... 2   2. Cabinet Setup ........................3   2.1 Inspecting the Equipment ................... 3   2.2 Floor Loading ......................3   2.3 Clearances .........................

  • Page 7: Introduction

    1 INTRODUCTION 1.1 Overview The Transformer Cabinet for 65 kVA, 80 kVA, 100 kVA, and 125 kVA is a steel cabinet that can either attach to the left side of the UPS cabinet or remain free standing. The purpose of the Transformer Cabinet is to allow operation of a UPS 480 V in/out with 208 V input and/or output and/or provide an output neutral when an input neutral is desired but not available.

  • Page 8: Applicability

    1.2 Applicability When present, the input transformer is always a 208 V primary to 480 V secondary autotransformer with a circuit breaker between the transformer and the UPS. If input is wye configured, the input neutral connects to the autotransformer and the ground bond in the UPS is removed.

  • Page 9: Cabinet Setup

    2. CABINET SETUP This SECTION describes:  Equipment inspection  Floor loading and clearances  Removing and replacing the cabinet panels  Unloading the cabinet(s)  Attaching the cabinet to the UPS If a Maintenance Bypass Switch (MBS) is installed, the site where the equipment is located must be such that the required control connections between the cabinet and the UPS are no greater than 30 feet or 10 meters in length.

  • Page 10: Unloading The Cabinet(S)

    2.4 Unloading the Cabinet(s) The following tools are required for unloading the cabinet(s):  Wrenches for 3/8” lag bolts.  Forklift or pallet jack WARNING The cabinets are heavy (see Table 2). Unloading the cabinets requires at least two people to safely remove the cabinets from the pallet. To remove the Transformer Cabinet from the ship pallet: Make sure the forklift is rated for the cabinet weight.

  • Page 11: Attaching The Cabinet To The Ups

    2.5 Attaching the Cabinet to the UPS The Transformer Cabinet was constructed so that it can be mounted to the side of the UPS cabinet if desired. To attach the Transformer Cabinet to the UPS Cabinet: 1. Remove left side panel of UPS and save hardware. 2.

  • Page 12: Electrical Installation

    3. ELECTRICAL INSTALLATION 3.1 Overview Each of the pieces of equipment covered by this manual has four sets of power connections: 1. Input from the power source, typically, from the electric utility. 2. Power routed to the input of the UPS. 3.
  • Page 13 MAINTENANCE BYPASS OPTION CIRCUIT BREAKERS LOW VOLTAGE CONNECTIONS FOR U SE IN A C ONT ROL LE D EN VIRON MENT. R EFER TO H AND BO OK F OR EN VIR ONME NTAL C ON D ITION S. ATTENT IO N : Pour utilis ati on en atmosphère controlée.

  • Page 14: Wiring Installation

    3.3 Wiring Installation 1. Switch off utility power to the distribution point where the UPS will be connected. Be absolutely sure that there are no hazardous voltages present. Use appropriate procedures to assure safety. 2. Remove as many panels as needed for adequate access for wiring the cabinet. Open the front door of the Transformer Cabinet.

  • Page 15: Control Connections (Mbs Arrangement Only)

    3.4 Control Connections (MBS Arrangement Only) Four control connections must be made between the Transformer Cabinet with MBS arrangement and the UPS in order to provide backfeed protection, a required safety feature. There is also a provision to provide Remote Emergency Power Off (REPO). REPO causes the output breaker to trip, thereby removing power from the load.

  • Page 16: Switch Settings (Mbs Arrangement Only)

    3.4.3 Switch Settings (MBS Arrangement Only) Switch "S2" on the Options Control Board (refer to Figure 6) is a four position "DIP" switch that has four small rocker switches. Pushing on the top half of each switch section closes the switch and turns it ON, pushing on the lower half turns the switch OFF. There are labels on the board to help identify the switch section.
  • Page 17 REMOTE COMMANDS AND ALARMS CONNECTIONS ON FRONT OF UPS BEHIND DOOR SHUNT USE TWISTED SHIELDED REPO OPTION PAIR WIRE NORMALLY CLOSED NORMALLY OPEN 1 2 3 4 5 6 7 8 9 10 11 CUSTOMER LOW VOLTAGE CONNECTION TERMINAL BLOCK (MAINTENANCE BYPASS SWITCH OPTION ONLY) Figure 7 - Customer Low Voltage Connection Terminal Block Page | 11...

  • Page 18: Backfeed Protection (Mbs Arrangement Only)

    4. BACKFEED PROTECTION (MBS ARRANGEMENT ONLY) In some of the possible combinations of switch positions for the MBS, the output of the UPS could be connected to the input to the system. If the UPS is in Normal mode (the load is being supplied power from the inverter), this could cause damage to the UPS.
  • Page 19 MBS arrangement. (There are some indirect possibilities. For example, stopping the UPS by pressing the EPO could cause the On Bypass signal from the UPS to the Transformer Cabinet with MBS arrangement to change, tripping the Bypass Breaker if the UPS Output Breaker is also closed.

  • Page 20: Operation (Mbs Arrangement Only)

    5. OPERATION (MBS ARRANGEMENT ONLY) Refer to the User's Manual for the UPS for instructions on operating the UPS part of the system. If the UPS is part of a parallel system, special operating instructions apply. The purpose of the Maintenance Bypass Switch (MBS) is to facilitate servicing the UPS without removing power from the load.

  • Page 21: To Transfer From Normal Mode On The Ups To Maintenance Bypass

    5.1 To transfer from normal mode on the UPS to maintenance bypass— 1. Verify that the bypass source is satisfactory: at minimum, verify that the bypass source lamp (LED1 at upper left) on the front panel of the UPS is steady green and that the legend “BYPASS VOLTAGE FAIL”...

  • Page 22: Need To Operate The Ups As Part Of Maintenance, But Wish To Maintain Power To

    5.5 Need to operate the UPS as part of maintenance, but wish to maintain power to load— 1. If UPS is running, perform transfer from normal mode to MBS, see Section 5.1 To transfer from normal mode on the UPS to maintenance bypass—. After opening BKR3, the UPS can be left powered (via BKR1) and/or its mode can be changed as desired.

  • Page 23: Repo (Mbs Arrangement Only)

    UTILITY LOAD To place load on maintenance bypass: To place load on UPS: 1. Reference the UPS User's Handbook - Manual 1. Set circuit breaker 1 to the closed/on position. Transfer to Bypass. Place UPS in bypass. 2. Start the UPS as instructed in the UPS User's 2.
  • Page 24 Table 4 - Maintenance Bypass Switch State Change Procedures (refer to Table 3 for description of states) From State To State Procedure 1. Select Manual Bypass Mode on UPS. Normal Overlap 2. Verify load on bypass by observing front panel of UPS. 3.

  • Page 25: Maintenance

    6. MAINTENANCE Regular care will assure maximum availability of power. The Transformer Cabinets have exhaust fans. We recommend that these fans be replaced every two years. Keep the ventilation openings in the cabinet free of dust and debris. Wipe the cabinet exterior with a soft cloth, slightly dampened with water, to remove dust. Consider performing periodic infrared temperature measurements on the circuit breaker terminations.

  • Page 26: Technical Specifications

    7. TECHNICAL SPECIFICATIONS Table 5 - Technical Specifications Environmental Altitude De-rate load capability above 1000 meters 1% per 100 meters. Operating Temperature C Maximum Humidity Maximum 95%RH, Non-condensing Electrical 65 kVA 80kVA 100kVA 125kVA Rated voltage 480/277 480/277 480/277 480/277 Rated Current 109A 136A...
  • Page 27 Table 6 - Wire Size Requirements and Maximum Current Ratings *Wire must be rated 75°C or higher 480 V Input: Rated Supply Ground rating Current Breaker Minimum Wire Wire (kVA) Size Size 250 kcmil 480 V Output: Rated Load rating Current Breaker Minimum Wire...
  • Page 28 Table 7 - Terminal Tightening Torques UPS CONNECTIONS TERMINAL TORQUE Wire Size Torque #4 AWG – 350 kcmil 275 inch - pounds UTILITY AND LOAD CONNECTIONS TERMINAL TORQUE Wire Size Torque #4 AWG – 500 kcmil 375 inch - pounds GROUND LUG TORQUE Wire Size Torque...

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