BPS Series Bypass Switch BPT Series Bypass Transformer FOR CFR UNINTERRUPTIBLE POWER SUPPLIES CANADA Alpha Technologies 5700 Sidley Street Burnaby, B.C.
Operator's Manual BPS Series Bypass Switch BPT Series Bypass Transformer FOR CFR UNINTERRUPTIBLE POWER SUPPLIES ©1995 Alpha Technologies 020-133-B0 03/95
THE ALPHA BPS SERIES 6. MAINTENANCE IMPORTANT SAFETY PRECAUTIONS CAUTION: Before attempting to install either the Bypass Switch or the Bypass Transformer please read the instructions contained in this manual. It provides information on how to install and test bypass switches in North America and some foreign countries. If in doubt, contact Alpha Technologies for assistance.
6. MAINTENANCE 6.2 Warranty IMPORTANT SAFETY INSTRUCTIONS CONTAINED IN THIS MANUAL LIMITED WARRANTY Alpha Technologies warrants its equipment to be free of manufacturing defects in material and workmanship for a period of 24 months from the date of manufacture. The liability of Alpha Technologies under this warranty is solely limited to repairing, replacing, or issuing credit (at the discretion of Alpha Technologies) provided that: 1. 2. 3. 4.
. SCHEMATIC DIAGRAMS The Alpha BPS SERIES Table of Contents The Alpha Bypass Switch and Bypass Transformer 1. INTRODUCTION 1.1 1.2 1.3 1.4 The Alpha Bypass Switch The Alpha Bypass Transformer Bypass Switch Terminology Bypass Selection Guide 2. INSTALLATION 2.2 2.1 Unpacking and Inspection Bypass Switch Installation 2.3 Circuit Breaker Rating and Wire Gauge 3. OPERATION 3.2 3.1 Testing Bypass Switch Operation Bypass Switch Operating Procedure 4. SPECIFICATIONS 4.1 4.2 5. 6.
1. INTRODUCTION 5. SCHEMATIC DIAGRAMS 1.1 The Alpha Bypass Switch (BPS) The Bypass Switch is a manually operated mechanical switch which is used to select an alternate source of power for critical loads should the UPS require service or maintenance. Normally the output to the critical load is powered by the UPS and the Bypass Switch is in the UPS position.
1. INTRODUCTION 5. SCHEMATIC DIAGRAMS 1.3 Bypass Switch Terminology, continued Make-Before-Break Make-Before-Break Bypass Switches provide continuous power to the load during switching. The bypass supply and the UPS output supply are momentarily connected in parallel to ensure that power to the load is not interrupted when switching. The duration of time the two supplies remain in parallel is determined by how quickly the switch is operated.
18 Figure 8. System Bypass Schematic 208V IN - 120V/240V OUT 3 120V 120V / 208V 120V /240V 120V 120 / 208V 120 / 240V 120V 120 / 208V 120 / 240V 230V 50 Hz 120V 120V 120V 208V 208V 208V 240V 240V 240V 230V BPS 2M3P Fig. 12 BPS 2M3P Fig. 11 BPS 2B3P Fig. 12 BPS 2B3P Fig. 11 BPS 2B3P BPT 3000 Fig. 7 BPT 3000 Fig. 7 BPS 2B3P Fig. 9 BPS 2M3P BPS 2M3P Fig. 9 BPS 2B3P BPT 3000-S or BPT 3000 Fig. 8 Fig. 6 BPT 3000 Fig. 7 BPS 2M3P BPT 3000-S or BPT 3000 Fig. 8 BPS 2B3P Fig.
2. INSTALLATION 5. SCHEMATIC DIAGRAMS 2.1 Unpacking and Inspection Carefully inspect the contents while removing them from the shipping container. If items appear damaged or are missing, contact Alpha Technologies and the shipping company immediately. Most shipping companies have only a short claim period. Make sure the following items have been included: 1. Bypass Switch and/or a Bypass Transformer 2. Operator’s Manual 3.
5. SCHEMATIC DIAGRAMS 2. INSTALLATION 2.2 Bypass Switch Installation CAUTION: The installation and testing of the Bypass Switch must be performed only by qualified personnel familiar with installing electrical equipment. This must be done in accordance with the rules and regulations of local and national electrical codes. The installation of a bypass circuit breaker is required. To select the proper size circuit breaker refer to Table 2. Procedure: 1.
2. INSTALLATION 5. SCHEMATIC DIAGRAMS 2.3 Circuit Breaker Rating and Wire Gauge Systems with a Bypass Isolation Transformer Installed: Install a Bypass Circuit Breaker with the current rating specified in Table 2. Use the wire gauge, as specified, for all connections to the Bypass Switch, especially if there is 208V or 240V supplied to the load.
5. SCHEMATIC DIAGRAMS 3. OPERATION 3.1 Testing Bypass Switch Operation CAUTION: This test must first be performed with all power to the Bypass Switch turned OFF. To test that all connections are made correctly, with all power to the bypass switch turned off, measure the resistance between pin 2 & 3, 5 & 7, and between 9 & 11 to ensure that there is no connection between the two sources of power (UPS and BYPASS).
5. SCHEMATIC DIAGRAMS 3. OPERATION Always operate the switch with a quick continuous motion, do not hold it in midposition. • DO NOT operate the bypass switch while the UPS is in inverter mode (LINE FAILURE light on the front panel will be ON). NOTES: 1. Bypass Switch - Closed Bypass Switch - Open Figure 3. System Bypass Schematic 120V IN - 120V/240V OUT 8 13 2. • The UPS will be internally configured for either 208V or 240V. Check the nameplate rating of the UPS to verify the correct voltage.
5. SCHEMATIC DIAGRAMS 4.0 SPECIFICATIONS MODEL A B C D E F G 2M3P, 2B3P (inches) (mm) 10.5 266 12 304 9.1 231 2 50 2 50 2 50 1.5 38 Bypass Switch Dimensions NOTES: 1. The UPS will be internally configured for either 208V or 240V. Check the nameplate rating of the UPS to verify the correct voltage. 4.1 BPS Specifications Figure 2.
5. SCHEMATIC DIAGRAMS 4.0 SPECIFICATIONS 4.2 MBT Specifications Bypass Transformer - Closed Bypass Transformer - Open BYPASS TRANSFORMER MECHANICAL AND ELECTRICAL SPECIFICATIONS MODEL HxWxD BPT BPT BPT BPT BPT 10”x14”x10” 15”x16”x12” 15”x16”x12” 24”x24”x18” 24”x24”x18” 3000 5000 7500 10K 15K Regulation: Frequency: Approval: Ambient Temperature: Insulation Class: Acoustic noise: Mounting: (254x356x254mm) (381x406x284mm) (381x406x305mm) (610x610x457mm) (610x610x457mm) Weight Eff.
5. SCHEMATIC DIAGRAMS 4.0 SPECIFICATIONS 4.2 MBT Specifications Bypass Transformer - Closed Bypass Transformer - Open BYPASS TRANSFORMER MECHANICAL AND ELECTRICAL SPECIFICATIONS MODEL HxWxD BPT BPT BPT BPT BPT 10”x14”x10” 15”x16”x12” 15”x16”x12” 24”x24”x18” 24”x24”x18” 3000 5000 7500 10K 15K Regulation: Frequency: Approval: Ambient Temperature: Insulation Class: Acoustic noise: Mounting: (254x356x254mm) (381x406x284mm) (381x406x305mm) (610x610x457mm) (610x610x457mm) Weight Eff.
5. SCHEMATIC DIAGRAMS 4.0 SPECIFICATIONS MODEL A B C D E F G 2M3P, 2B3P (inches) (mm) 10.5 266 12 304 9.1 231 2 50 2 50 2 50 1.5 38 Bypass Switch Dimensions NOTES: 1. The UPS will be internally configured for either 208V or 240V. Check the nameplate rating of the UPS to verify the correct voltage. 4.1 BPS Specifications Figure 2.
5. SCHEMATIC DIAGRAMS 3. OPERATION Always operate the switch with a quick continuous motion, do not hold it in midposition. • DO NOT operate the bypass switch while the UPS is in inverter mode (LINE FAILURE light on the front panel will be ON). NOTES: 1. Bypass Switch - Closed Bypass Switch - Open Figure 3. System Bypass Schematic 120V IN - 120V/240V OUT 8 13 2. • The UPS will be internally configured for either 208V or 240V. Check the nameplate rating of the UPS to verify the correct voltage.
5. SCHEMATIC DIAGRAMS 3. OPERATION 3.1 Testing Bypass Switch Operation CAUTION: This test must first be performed with all power to the Bypass Switch turned OFF. To test that all connections are made correctly, with all power to the bypass switch turned off, measure the resistance between pin 2 & 3, 5 & 7, and between 9 & 11 to ensure that there is no connection between the two sources of power (UPS and BYPASS).
2. INSTALLATION 5. SCHEMATIC DIAGRAMS 2.3 Circuit Breaker Rating and Wire Gauge Systems with a Bypass Isolation Transformer Installed: Install a Bypass Circuit Breaker with the current rating specified in Table 2. Use the wire gauge, as specified, for all connections to the Bypass Switch, especially if there is 208V or 240V supplied to the load.
5. SCHEMATIC DIAGRAMS 2. INSTALLATION 2.2 Bypass Switch Installation CAUTION: The installation and testing of the Bypass Switch must be performed only by qualified personnel familiar with installing electrical equipment. This must be done in accordance with the rules and regulations of local and national electrical codes. The installation of a bypass circuit breaker is required. To select the proper size circuit breaker refer to Table 2. Procedure: 1.
2. INSTALLATION 5. SCHEMATIC DIAGRAMS 2.1 Unpacking and Inspection Carefully inspect the contents while removing them from the shipping container. If items appear damaged or are missing, contact Alpha Technologies and the shipping company immediately. Most shipping companies have only a short claim period. Make sure the following items have been included: 1. Bypass Switch and/or a Bypass Transformer 2. Operator’s Manual 3.
18 Figure 8. System Bypass Schematic 208V IN - 120V/240V OUT 3 120V 120V / 208V 120V /240V 120V 120 / 208V 120 / 240V 120V 120 / 208V 120 / 240V 230V 50 Hz 120V 120V 120V 208V 208V 208V 240V 240V 240V 230V BPS 2M3P Fig. 12 BPS 2M3P Fig. 11 BPS 2B3P Fig. 12 BPS 2B3P Fig. 11 BPS 2B3P BPT 3000 Fig. 7 BPT 3000 Fig. 7 BPS 2B3P Fig. 9 BPS 2M3P BPS 2M3P Fig. 9 BPS 2B3P BPT 3000-S or BPT 3000 Fig. 8 Fig. 6 BPT 3000 Fig. 7 BPS 2M3P BPT 3000-S or BPT 3000 Fig. 8 BPS 2B3P Fig.
1. INTRODUCTION 5. SCHEMATIC DIAGRAMS 1.3 Bypass Switch Terminology, continued Make-Before-Break Make-Before-Break Bypass Switches provide continuous power to the load during switching. The bypass supply and the UPS output supply are momentarily connected in parallel to ensure that power to the load is not interrupted when switching. The duration of time the two supplies remain in parallel is determined by how quickly the switch is operated.
1. INTRODUCTION 5. SCHEMATIC DIAGRAMS 1.1 The Alpha Bypass Switch (BPS) The Bypass Switch is a manually operated mechanical switch which is used to select an alternate source of power for critical loads should the UPS require service or maintenance. Normally the output to the critical load is powered by the UPS and the Bypass Switch is in the UPS position.
Figure 11. System Bypass Schematic 240V IN - 120V/240V OUT 21 2. NOTES: 1. The UPS will be internally configured for either 208V or 240V. Check the nameplate rating of the UPS to verify the correct voltage. Omit this connection if 120V output is not required or available. 5.
5. SCHEMATIC DIAGRAMS The Alpha BPS SERIES Table of Contents The Alpha Bypass Switch and Bypass Transformer 1. INTRODUCTION 1.1 1.2 1.3 1.4 The Alpha Bypass Switch The Alpha Bypass Transformer Bypass Switch Terminology Bypass Selection Guide 2. INSTALLATION 2.2 2.1 Unpacking and Inspection Bypass Switch Installation 2.3 Circuit Breaker Rating and Wire Gauge 3. OPERATION 3.2 3.1 Testing Bypass Switch Operation Bypass Switch Operating Procedure 4. SPECIFICATIONS 4.1 4.2 5. 6.
THE ALPHA BPS SERIES 6. MAINTENANCE IMPORTANT SAFETY PRECAUTIONS CAUTION: Before attempting to install either the Bypass Switch or the Bypass Transformer please read the instructions contained in this manual. It provides information on how to install and test bypass switches in North America and some foreign countries. If in doubt, contact Alpha Technologies for assistance.
6. MAINTENANCE 6.2 Warranty IMPORTANT SAFETY INSTRUCTIONS CONTAINED IN THIS MANUAL LIMITED WARRANTY Alpha Technologies warrants its equipment to be free of manufacturing defects in material and workmanship for a period of 24 months from the date of manufacture. The liability of Alpha Technologies under this warranty is solely limited to repairing, replacing, or issuing credit (at the discretion of Alpha Technologies) provided that: 1. 2. 3. 4.
BPS Series Bypass Switch BPT Series Bypass Transformer FOR CFR UNINTERRUPTIBLE POWER SUPPLIES CANADA Alpha Technologies 5700 Sidley Street Burnaby, B.C.
