GE Digital Energy STS-400-100-3 Installation And Operating Manual Download Page 32

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OPM_STS_400_25A_100_1GB_V011

GE DE STS: installation and operating manual 1.1 (GB)

Digital Energy

™

Static Transfer Switch

4.3.4 Trouble

shooting

DISTURBANCE

LED is ON

Check if PRIMARY SOURCE HEALTHY LED is ON

Check if SECONDARY SOURCE HEALTHY LED is ON

Check if SYNCHRONIZATION LEDs are ON

Check if TVSS ALARM LED is OFF

Check if RETRANSFER OFF LED is OFF

Check if MANUAL LED is OFF

OVERCURRENT

LED is ON

. Check with clamp meter if the output current of STS in all phases

is correct (notice crest factor of output current)

Switch off some load

OVERTEMP

LED is ON

Check if air ventilation in the cabinet is sufficient

. Check if each fan in STS is working

Check with clamp meter if the output current of STS in all phases

is correct (notice crest factor of output current). After restoring right

condition (nominal load), heatsink temperature drops down below

sensor deactivation level (hysteresis). It takes about 1 hour time.

During that time OVERTEMP LED is on.

TVSS ALARM

LED is ON

Check if any of transient voltage surge suppressors fuses are burnt

and replace them with new ones

RETRANSFER OFF

LED is ON

Check position of RETRANSFER button – turn it into ON position

(button is pushed)

MANUAL

LED is ON

Check position of OPERATION button – turn it into AUTOMATIC

position (button is pushed)

SYNCHRONIZATION

LEDs are

OFF

Check phase order in both inputs X01 and X02

Check phase delay in right phases between voltages in both

supplying sources

FAILURE

LED is ON

Check if OVERCURRENT LED is off

Check if OVERTEMP LED is off

Press RESET button to remove memorized alarm

Check PRIMARY FUSES and their indication switches

Check STS OUTPUT FUSES and their indication switches

Summary of Contents for Digital Energy STS-400-100-3

Page 1: ...Transfer Switch 400V 25 40 63 100A 3 4 pole GE Digital Energy General Electric Company Telephone 41 0 91 850 51 51 CH 6595 Riazzino Locarno Fax 41 0 91 850 51 44 Switzerland Website www gedigitalenergy com GE imagination at work Ver 1 1 GB STS g GE Consumer Industrial Digital Energy ...

Page 2: ...e 3 pole models STS 400 25 3 STS 400 40 3 STS 400 63 3 and STS 400 100 3 the 3 phase 4 pole models STS 400 25 4 STS 400 40 4 and STS 400 63 4 Please keep this manual in a safe place for future reference and carefully read the important safety instructions in chapter 1 before installation of this device 2004 by GE Consumer Industrial All rights reserved The information contained in this publication...

Page 3: ...n 3 6 Starting up 4 OPERATION 21 4 1 Operation mode settings 4 1 1 Preferred source selection 4 1 2 Automatic retransferring 4 1 3 Manual operation 4 1 4 Reset button 4 2 Manual bypass operation 4 2 1 Bypassing load to primary source 4 2 2 Return from primary bypass mode to STS operation 4 2 3 Bypassing load to secondary source 4 2 4 Return from secondary bypass mode to STS operation 4 3 Service 4...

Page 4: ...y of this manual GE accepts no responsibility or liability for any loss or damage resulting from the use of the information contained in this document This document shall not be copied nor reproduced without the permission of GE Due to technical improvements some of the information contained in this manual may be changed without notice 1 2 Safety warnings and symbols Safety warnings The text of th...

Page 5: ...he care and use of safety equipment Are trained to immediate rescue measures first aid Have completed instructions with appropriate confirmation of GE 1 4 Intended use A Static Transfer Switch STS is designed to transfer power supply between independent AC power sources thus protecting the connected load from power supply interruptions It protects automatic systems for power industry power supply ...

Page 6: ...n a controlled indoor environment and free of conductive contaminants and protected against animal intrusion Check for sufficient floor loading capacity Avoid placing the unit in direct sunlight or near heat sources It is important that the unit has adequate ventilation Maintain air movement around and through the unit Do not block the air vents The unit must be placed in a sufficiently ventilated...

Page 7: ...owledge of the overall system and should be carried out by properly qualified skilled and competent service personnel only Refer to section 1 3 for further details Operators shall make sure that the system is ready for operation and that all cabinet doors are properly closed before switching it on Warning signs are placed on all cabinet doors to warn of excessive voltage over 50 V in the control c...

Page 8: ...arging of Lead Acid batteries guideline The standards mentioned above fulfil the requirements for CE marking The product mentioned in this manual conforms to the relevant requirements to the appropriate EU Directive i e that this product meets all relevant EU Directives and that it can be sold inside the European Union without national commercial hindrances Relevant EU Directives for GE are called...

Page 9: ...supplied to the load The neutral wires in the 3 pole STS type are connected together whereas the neutral wires in the 4 pole type are being switched the same way as the phase wires The static transfer switch STS is connected to two sources of electrical power with terminals called X01 PRIMARY SOURCE and X02 SECONDARY SOURCE The rated voltage of both sources is 400V AC phase to phase and the freque...

Page 10: ...URCE ON K5 STS SECONDARY SOURCE ON In normal mode of operation the process of transferring the supply from one input to the other one is performed automatically The start up procedure is described in chapter 3 operation is explained in chapter 4 The device is equipped with a mechanical interlock plate that prevents against unintentional short circuit during manipulation with high current switches ...

Page 11: ...gure 3 STS with opened door PRIMARY SECONDARY NORMAL BYPASS BYPASS MODE K1 STS K2 STS OUTPUT PRIMARY SOURCE SECONDARY SOURCE K4 STS K3 STS K5 STS PRIMARY SECONDARY BYPASS BYPASS ON OFF SW1 SW2 SW3 SW4 SW5 SW6 SW8 SW7 MAIN AND AUXILARY FUSES RELAY COMMUNICATION TERMINAL BLOCK XO1 PRIMARY SOURCE XO3 OUTPUT XO2 SECONDARY SOURCE ...

Page 12: ... Figure 4 a High current terminals location for all types excluding STS 400 100 3 cover removed PRIMARY SECONDARY NORMAL BYPASS BYPASS MODE K1 STS K2 STS OUTPUT PRIMARY SOURCE SECONDARY SOURCE K4 STS K3 STS K5 STS PRIMARY SECONDARY BYPASS BYPASS X10 X11 1 14 1 14 X01 L1 L2 L3 N X03 L1 L2 L3 N X02 L1 L2 L3 N PE PE PE PE PE ...

Page 13: ...r Switch g Figure 4 b High current terminals location for STS 400 100 3 cover removed PRIMARY SECONDARY NORMAL BYPASS BYPASS MODE K1 STS K2 STS OUTPUT PRIMARY SOURCE SECONDARY SOURCE K4 STS K3 STS K5 STS PRIMARY SECONDARY BYPASS BYPASS X10 X11 1 14 1 14 X01 L1 L2 L3 N X03 X02 PE PE PE PE PE L1 L2 L3 N L1 L2 L3 N ...

Page 14: ...al Energy Static Transfer Switch g OUTPUT PRIMARY SOURCE SECONDARY SOURCE K4 STS K3 STS K5 STS Figure 5 a Fuses and TVSS location without STS 400 100 3 KO1 KO2 Primary Source Fuses O2 O3 O1 Output Fuses Fuse burn indication for primary source fuses KO3 Fuse burn indication for output fuses ...

Page 15: ...ital Energy Static Transfer Switch g OUTPUT PRIMARY SOURCE SECONDARY SOURCE K4 STS K3 STS K5 STS Figure 5b Fuses and TVSS location for STS 400 100 3 KO1 KO2 KO3 Primary Source Fuses Fuse burn indication for output fuses O2 O3 O1 Output Fuses Fuse burn indication for primary source fuses ...

Page 16: ...sient Voltage Surge Suppressor are placed behind the plate with MAIN AND AUXILARY FUSES label figure 4 Exchange of fuses and TVSS units is possible after removing that plate figure 6 Fuses are placed in the primary input line and in the output line figure 1 Each fuse is equipped with a signalling circuit which indicates a burnt fuse The signalling circuit is based on an auxiliary overcurrent circu...

Page 17: ...uring transport pay attention to For storage and transport the cabinet of the Static Transfer Switch STS is covered with cardboard sheet belted with steel wrapping bands to europalettes or other suitable for forklift transport The package box supplies the following information Name or logo of manufacturer Quality control sign Warnings according to PN 67 O 79252 Standard Figure 6 View of crate pack...

Page 18: ... to the frame 4 Recycle the packing material in compliance with all applicable regulations 3 3 Location This STS is intended to be used in a controlled indoor environment and free of conductive contaminants and protected against animal intrusion Check for sufficient floor loading capacity Avoid placing the unit in direct sunlight or near heat sources It is important that the unit has adequate vent...

Page 19: ...nings and strictly follow the procedures and practices as described in this manual Do not touch electronic components They may be electrostatic sensitive and are for that reason easily damaged due to improper handling To avoid potential health risks electrical components should not be mechanically damaged or destroyed NOTE Before making any connection and switching on the STS check the following c...

Page 20: ...g device PRIMARY SOURCE into the X01 PRIMARY SOURCE terminal figure 4 7 Firmly connect five wires coming from the second supplying device SECONDARY SOURCE into the X02 SECONDARY SOURCE terminal figure 4 8 Firmly connect the five wires going to the load STS OUTPUT into the X03 STS OUTPUT terminal figure 4 9 Check the connection of three external lines Especially the output line going to the load sh...

Page 21: ...ton OPERATION button is released if manual mode is on Remote control is blocked when manual mode is on 3 Set switch K4 STS PRIMARY SOURCE into ON position 4 Check if the LEDs on the control panel indicate that the primary source is preferred healthy and on 5 Set switch K5 STS SECONDARY SOURCE into ON position 6 Check if the LEDs on the control panel indicate the secondary source as healthy and pro...

Page 22: ... if the preferred source is healthy again Manual mode connections are set manually not automatically 4 1 Operation mode settings Three buttons on the control panel determine the current operation mode OPERATION RETRANSFER and PREFERRED SOURCE Figure 7 Control panel 4 1 1 Preferred source selection Button designation Position Operation PRIMARY button is released PRIMARY SOURCE or REMOTE CONTROL sel...

Page 23: ...3 Manual operation Button designation Position designation Operation MANUAL button is released Manual operation is active OPERATION MANUAL is on MANUAL LED is on NOTE OPERATION AUTOMATIC button is pushed Automatic operation is active NOTE Remote control is blocked when manual mode is on If MANUAL mode of operation is selected the active source may be changed even if the second one is not operation...

Page 24: ...eck if LEDs on the control panel indicate that the primary source is preferred healthy and currently supplying the load 3 Open the door of the STS 4 Unscrew the knurled nut that locks the Interlock Plate 5 Set switch K5 STS SECONDARY SOURCE into OFF position 6 Move the Bypass Interlock Plate into PRIMARY BYPASS position 7 Set switch K1 STS PRIMARY BYPASS into ON position 8 Set switch K3 STS OUTPUT...

Page 25: ...ASS BYPASS MODE K1 STS K2 STS OUTPUT PRIMARY SOURCE SECONDARY SOURCE K4 STS K3 STS K5 STS PRIMARY SECONDARY BYPASS BYPASS RELAY COMMUNICATION TERMINAL BLOCK XO1 PRIMARY SOURCE XO3 OUTPUT XO2 SECONDARY SOURCE K1 STS K2 STS OUTPUT PRIMARY SOURCE SECONDARY SOURCE K4 STS K3 STS K5 STS PRIMARY SECONDARY BYPASS BYPASS PRIMARY SECONDARY NORMAL BYPASS BYPASS MODE MAIN AND AUXILARY FUSES RELAY COMMUNICATIO...

Page 26: ...atic operation 3 Open the door of the STS 4 Unscrew the knurled nut that locks the Interlock Plate 5 Set switch K4 STS PRIMARY SOURCE into ON position 6 Check if LEDs on the control panel indicate that the primary source is preferred healthy and currently supplying the load 7 Set switch K3 STS OUTPUT into ON position 8 Set switch K1 STS PRIMARY BYPASS into OFF position 9 Move the Bypass Interlock ...

Page 27: ...e control panel indicate that the secondary source is preferred healthy and currently supplying the load 3 Open the door of the STS 4 Unscrew the knurled nut that locks the Interlock Plate 5 Set switch K4 STS PRIMARY SOURCE into OFF position 6 Move the Bypass Interlock Plate into SECONDARY BYPASS position 7 Set switch K2 STS SECONDARY BYPASS into ON position 8 Set switch K3 STS OUTPUT into OFF pos...

Page 28: ...g Figure 10 Switches set for secondary bypass mode of operation K1 STS K2 STS OUTPUT PRIMARY SOURCE SECONDARY SOURCE K4 STS K3 STS K5 STS PRIMARY SECONDARY BYPASS BYPASS PRIMARY SECONDARY NORMAL BYPASS BYPASS MODE MAIN AND AUXILARY FUSES RELAY COMMUNICATION TERMINAL BLOCK XO1 PRIMARY SOURCE XO3 OUTPUT XO2 SECONDARY SOURCE ...

Page 29: ...f automatic operation 3 Open the door of the STS 4 Unscrew the knurled nut that locks the Interlock Plate 5 Set switch K5 STS SECONDARY SOURCE into ON position 6 Check if LEDs on the control panel indicate that the secondary source is preferred healthy and currently supplying the load 7 Set switch K3 STS OUTPUT into ON position 8 Set switch K2 STS SECONDARY BYPASS into OFF position 9 Move the Bypa...

Page 30: ...S is out of order 6 Switch off K4 PRIMARY SOURCE 7 STS immediately transfers the load to the secondary source You can check the output transfer time locking output voltage waveform during transfer by oscilloscope 8 Switch on K4 PRIMARY SOURCE 9 STS transfers the load to the preferred primary source within 30 seconds the transfer time depends on the dipswitch settings 10 Set the secondary source as...

Page 31: ... switches K3 STS OUTPUT K4 STS PRIMARY SOURCE and K5 STS SECONDARY SOURCE should be in ON position Switches K1 STS PRIMARY BYPASS and K2 STS SECONDARY BYPASS should be in OFF position 9 Close the door of the STS 4 3 3 TVSS fuse exchange procedure 1 Open the door of the STS 2 Bypass the load to either the primary or secondary source according to one of the two procedures described in chapters 4 2 1...

Page 32: ...correct notice crest factor of output current After restoring right condition nominal load heatsink temperature drops down below sensor deactivation level hysteresis It takes about 1 hour time During that time OVERTEMP LED is on TVSS ALARM LED is ON Check if any of transient voltage surge suppressors fuses are burnt and replace them with new ones RETRANSFER OFF LED is ON Check position of RETRANSF...

Page 33: ...e of operation and with switches K3 K4 and K5 in OFF position ON OFF SW1 SW2 SW3 SW4 SW5 SW6 SW8 SW7 MAIN AND AUXILARY FUSES Figure 11 Access to DIP switches ON OFF SW1 SW2 SW3 SW4 SW5 SW6 SW8 SW7 ON 1 2 3 4 ON 1 2 3 4 ON 1 2 3 4 ON 1 2 3 4 ON 1 2 3 4 ON 1 2 3 4 ON 1 2 3 4 ON 1 2 3 4 Figure 12 DIP switches zoom NOTE DIP switches numbering order is from left to right side Each single DIP switch is ...

Page 34: ... ON X 16 SW2 Overvoltage level for PRIMARY SOURCE OFF OFF ON X 20 OFF OFF OFF X forbidden ON OFF OFF X 8 ON ON OFF X 12 OFF ON OFF X 16 OFF ON ON X 20 SW3 Undervoltage level for SECONDARY SOURCE OFF OFF ON X 24 OFF OFF OFF X forbidden ON OFF OFF X 6 ON ON OFF X 9 OFF ON OFF X 13 OFF ON ON X 16 SW4 Overvoltage level for SECONDARY SOURCE OFF OFF ON X 20 OFF OFF OFF X forbidden ON OFF OFF X 8 ON ON O...

Page 35: ...tantaneous current is larger than set level transfer is not performed OFF OFF X X 25 s OFF ON X X 1 s ON OFF X X 8 s Retransferring delay ON ON X X 0 8 s X X OFF OFF 50 ms X X OFF ON 17 ms X X ON OFF 25 ms SW7 Switching delay with unsynchronized sources X X ON ON 13 ms Delay between switching off and switching on OFF X X X Only possible setting for STS 400 XX 4 Other setting may cause wrong operat...

Page 36: ... ON OFF OFF OFF 8 SW2 Overvoltage level for PRIMARY SOURCE ON OFF OFF OFF 6 SW3 Undervoltage level for SECONDARY SOURCE ON OFF OFF OFF 8 SW4 Overvoltage level for SECONDARY SOURCE ON OFF OFF OFF 6 SW5 Level of delay angle between two synchronized input line voltages ON OFF OFF OFF 8 SW6 Overcurrent level ON OFF OFF OFF 3In Retransferring delay 0 8s SW7 Switching delay with unsynchronized sources O...

Page 37: ...C 11 11 NO 12 12 COMM Output FAILURE ALARM 2 Alarm is set if there is electrical connection between common and NO terminal 13 13 NC 14 X10 14 NO 15 1 COMM Output SECONDARY SOURCE ON Secondary source was selected if there is electrical connection between common and NC terminal 16 2 NC 17 3 NO 18 4 COMM Output PRIMARY SOURCE ON Primary source was selected if there is electrical connection between co...

Page 38: ...ive source may be changed even if second one is not operational 4 6 2 Communication Interface Module CI M1 The Communication Interface Module CI M1 is delivered as an option and it is used to communicate between devices and an external overall system with MODBUS communication protocol This module allows the device to be monitored by user control systems Data transmission is performed through a ser...

Page 39: ...PR TRANS and it has 16 positions Table 8 below shows the settings and corresponding transmission speed Table 8 PR TRANS setting Transmission speed in bauds 0 600 1 1200 2 2400 3 4800 4 9600 5 19200 6 38400 7 57600 8 115200 Figure 13 PCB of Communication Interface Module CI M1 The X2 user connector is a socket type RJ10 with outlets as in figure 14 Figure 14 RS485 connector X2 ISO GND A485 X2 RJ10 ...

Page 40: ...accordance with the MODBUS RTU protocol where the transmission module is in Slave mode of operation Register value and its meaning is presented in table 9 below Table 9 Objects map for MODBUS protocol Word Byte Bit Parameter Format 0 0 0 MANUAL_ON Logic 1 active 1 RETRANSFER_OFF Logic 1 active 2 PRIMARY_SOURCE_ON Logic 0 active 3 SECONDARY_SOURCE_ON Logic 0 active 4 FAILURE_ALARM Logic 1 active 5 ...

Page 41: ...72 4 8 125 7 D 178 B 2 231 E 7 20 1 4 73 4 9 126 7 E 179 B 3 232 E 8 21 1 5 74 4 A 127 7 F 180 B 4 233 E 9 22 1 6 75 4 B 128 8 0 181 B 5 234 E A 23 1 7 76 4 C 129 8 1 182 B 6 235 E B 24 1 8 77 4 D 130 8 2 183 B 7 236 E C 25 1 9 78 4 E 131 8 3 184 B 8 237 E D 26 1 A 79 4 F 132 8 4 185 B 9 238 E E 27 1 B 80 5 0 133 8 5 186 B A 239 E F 28 1 C 81 5 1 134 8 6 187 B B 240 F 0 29 1 D 82 5 2 135 8 7 188 B...

Page 42: ...h current terminal Cross section for the wire maximum Terminal designation Designation STS 400 100 3 Others PE 70 mm2 35 mm2 L1 70 mm2 35 mm2 L2 70 mm2 35 mm2 L3 70 mm2 35 mm2 X01 X02 X03 N 70 mm2 35 mm2 4 7 Fuse selection Figure 15 Overcurrent protection for supply and load lines of the STS Figure shows values for the STS 400 63 4 ...

Page 43: ...0A gG 63A gG 125A gG 80A gG 50A gG 100A gG 63A gG 40A gG STS 400 63 3 4 Fuses of line A and B minimum value STS fuses Fuses of load lines maximum value 100A gG 63A gG 40A gG 80A gG 50A gG 32A gG 63A gG 40A gG 25A gG STS 400 40 3 4 Fuses of line A and B minimum value STS fuses Fuses of load lines maximum value 63A gG 40A gG 25A gG 50A gG 32A gG 20A gG 40A gG 25A gG 16A gG STS 400 25 3 4 Fuses of li...

Page 44: ... RMS neutral STS 400 40 4 3 x 40 A RMS 80 A RMS neutral STS 400 25 4 3 x 25 A RMS 50 A RMS neutral STS 400 100 3 3 x 100 A RMS 200 A RMS neutral STS 400 63 3 3 x 63 A RMS 125 A RMS neutral STS 400 40 3 3 x 40 A RMS 80 A RMS neutral Rated output current STS 400 25 3 3 x 25 A RMS 50 A RMS neutral Maximum crest factor 3 5 Power factor cos φ 0 5 1 lag lead 1 5kV Iimp 15kA 8 20us Voltage surge withstan...

Page 45: ...tting 8 12 16 16 24 Transfer is performed when voltage value crosses the level Programmed by DIP switch selection Phase delay limit for synchronized sources 8 12 16 20 24 Programmed by DIP switch selection Transfer blocked after output current limit exceeding 3 In 4 5 In 6 In 7 5 In 9 In Transfer without overcurrent blockade Programmed by DIP switch selection Transfer delay after manual triggering...

Page 46: ...UAL mode of operation is selected active source may be changed even if second one is not healthy RETRANSFER OFF relay Retransfer to preferred source is not performed PRIMARY SOURCE OK relay Indicating if primary source is healthy SECONDARY SOURCE OK relay Indicating if secondary source is healthy PRIMARY SOURCE ON relay Indicating if primary source is active SECONDARY SOURCE ON relay Indicating if...

Page 47: ...OPM_STS_400_25A_100_1GB_V011 46 GE DE STS installation and operating manual 1 1 GB Digital Energy Static Transfer Switch g 5 2 Dimensions Figure 16 Front view ...

Page 48: ...OPM_STS_400_25A_100_1GB_V011 47 GE DE STS installation and operating manual 1 1 GB Digital Energy Static Transfer Switch g Figure 17 Side view of STS ...

Page 49: ...OPM_STS_400_25A_100_1GB_V011 48 GE DE STS installation and operating manual 1 1 GB Digital Energy Static Transfer Switch g Assembly holes Figure 18 Top view of STS ...

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