Gtec NS3000 Series User manual

NS3000_60-120KVA User Manual ENG rev.02I
Uninterruptible power supply
NS3000 series
60-120kVA 3/3 UPS
USER Manual

II NS3000 UPS 60KVA~120KVA User Manual
Preface
Usage
The manual contains information on installing, using, operation and maintenance of
the Tower UPS. Please carefully read this manual prior to installation.
Users
Technical Support Engineer
Maintenance Engineer
Note
Our company is providing a full range of technical support and services. Customer
can contact our local office or customer service center for help.
The manual will update irregularly, due to the product upgrading or other reasons.
Unless otherwise agreed，the manual is only used as guide for users and any
statements or information contained in this manual make no warranty expressed or
implied.

NS3000_60-120KVA User Manual ENG rev.02III
Contents
Contents
1. Safety Precautions ..................................................................................................................... 1
Safety Message Definition .................................................................................................... 1
Warning Label ......................................................................................................................... 1
Safety Instruction .................................................................................................................... 1
Move & Install ......................................................................................................................... 2
Debug & Operate.................................................................................................................... 2
Maintenance & Replacement ............................................................................................... 2
Battery Safety ......................................................................................................................... 3
Disposal ................................................................................................................................... 4
2. Product Introduction .................................................................................................................. 5
2.1 System Configuration ...................................................................................................... 5
2.2 Power Module .................................................................................................................. 5
2.3 Operation Mode ............................................................................................................... 5
2.3.1 Normal Mode ......................................................................................................... 6
2.3.2 Battery Mode ......................................................................................................... 6
2.3.3 Bypass Mode ........................................................................................................ 7
2.3.4 Maintenance Mode (Manual Bypass) ................................................................ 7
2.3.5 ECO Mode ............................................................................................................. 8
2.3.6 Auto-restart Mode ................................................................................................. 8
2.3.7 Frequency Converter Mode ................................................................................ 8
2.4 UPS Structure .................................................................................................................. 8
2.4.1 UPS Configuration ................................................................................................ 8
2.4.2 UPS Outlook .......................................................................................................... 9
3. Installation Instruction.............................................................................................................. 11
3.1 Location ........................................................................................................................... 11
3.1.1 Installation Environment .................................................................................... 11
3.1.2 Site Selection ...................................................................................................... 11
3.1.3 Size and Weight .................................................................................................. 11
3.2 Unloading and Unpacking ............................................................................................ 13
3.2.1 Moving and Unpacking of the Cabinet ............................................................ 13
3.3 Positioning ...................................................................................................................... 15
3.3.1 Positioning Cabinet ............................................................................................ 15
3.4 Battery ............................................................................................................................. 16
3.5 Cable Entry ..................................................................................................................... 17
3.6 Power Cables ................................................................................................................. 17
3.6.1 Specifications ...................................................................................................... 17
3.6.2 Specifications for Power Cables Terminal ...................................................... 18
3.6.3 Circuit Breaker .................................................................................................... 18
3.6.4 Connecting Power Cables ................................................................................. 19
3.7 Control and Communication Cables ........................................................................... 20

IV NS3000 UPS 60KVA~120KVA User Manual
3.7.1 Dry Contact Interface ......................................................................................... 20
3.7.2 Communication Interface .................................................................................. 25
4. LCD Panel ................................................................................................................................. 26
4.1 Introduction ..................................................................................................................... 26
4.2 LCD panel for Cabinet .................................................................................................. 26
4.2.1 LED Indicator ...................................................................................................... 26
4.2.2 Control and Operation Keys ............................................................................. 27
4.2.3 LCD touch Screen .............................................................................................. 28
4.3 Main Menu ...................................................................................................................... 29
4.3.1 Cabinet ................................................................................................................. 29
4.3.2 Power unit ...................................................................................................... 32
4.3.3 Setting ............................................................................................................ 34
4.3.4 Log .................................................................................................................. 36
4.3.5 Operate .......................................................................................................... 43
4.3.6 Scope ............................................................................................................. 45
5. Operations ................................................................................................................................. 47
5.1 UPS Start-up .................................................................................................................. 47
5.1.1 Start from Normal Mode .................................................................................... 47
5.1.2 Start from Battery (option) ................................................................................. 48
5.2 Procedure for Switching between Operation Modes ................................................ 48
5.2.1 Switching the UPS into Battery Mode from Normal Mode ........................... 48
5.2.2 Switching the UPS into Bypass Mode from Normal Mode ........................... 48
5.2.3 Switching the UPS into Normal Mode from Bypass Mode ........................... 49
5.2.4 Switching the UPS into Maintenance Bypass Mode from Normal Mode ... 49
5.2.5 Switching the UPS into Normal Mode from Maintenance Bypass Mode ... 50
5.3 Battery Maintenance ..................................................................................................... 50
5.4 EPO ................................................................................................................................. 51
5.5 Installation of Parallel Operation System ................................................................... 52
6. Maintenance ............................................................................................................................. 54
6.1 Precautions ..................................................................................................................... 54
6.2 Instruction for Maintaining Power Module .................................................................. 54
6.3 Instruction for Maintaining monitor unit and bypass unit ......................................... 54
6.4 Battery setting ................................................................................................................ 55
7. Product Specification ............................................................................................................... 58
7.1 Applicable Standards .................................................................................................... 58
7.2 Environmental Characteristics ..................................................................................... 58
7.3 Mechanical Characteristic ............................................................................................ 58
7.4 Electrical Characteristics .............................................................................................. 59
7.4.1 Electrical Characteristics (Input Rectifier) ....................................................... 59
7.4.2 Electrical Characteristics (Intermediate DC Link) .......................................... 60
7.4.3 Electrical Characteristics (Inverter Output) ..................................................... 61
7.4.4 Electrical Characteristics (Bypass Mains Input) ............................................. 62

NS3000_60-120KVA User Manual ENG rev.02V
Contents
7.5 Efficiency ......................................................................................................................... 62
7.6 Display and Interface .................................................................................................... 62
Appendix A …………………………………………………………………………………..63

NS3000 UPS 60KVA~120KVA User Manual
1
1. Safety Precautions
This manual contains information concerning the installation and operation of
Tower UPS. Please carefully read this manual prior to installation.
The Tower UPS cannot be put into operation until it is commissioned by
engineers approved by the manufacturer (or its agent). Not doing so could
result in personnel safety risk, equipment malfunction and invalidation of
warranty.
Safety Message Definition
Danger: Serious human injury or even death may be caused, if this requirement
is ignored.
Warning: Human injury or equipment damage may be caused, if this
requirement is ignored.
Attention: Equipment damage, loss of data or poor performance may be caused,
if this requirement is ignored.
Commissioning Engineer: The engineer who installs or operates the equipment
should be well trained in electricity and safety and familiar with the operation,
debug, and maintenance of the equipment.
Warning Label
The warning label indicates the possibility of human injury or equipment
damage, and advises the proper step to avoid the danger. In this manual, there
are three types of warning labels as below.
Labels Description
Danger
Serious human injury or even death may be caused, if this
requirement is ignored.
Warning
Human injury or equipment damage may be caused, if this
requirement is ignored.
Attention
Equipment damage, loss of data or poor performance may be
caused, if this requirement is ignored.
Safety Instruction
Danger
 Performed only by commissioning engineers.
 This UPS is designed for commercial and industrial
applications only, and is not intended for any use in life-
support devices or system.
Warning
 Read all the warning labels carefully before operation, and
follow the instructions.
 When the system is running, do not touch the surface with
this label, to avoid any hurt of scald.
 ESD sensitive components inside the UPS, anti-ESD
measure should be taken before handling.

2 NS3000 UPS 60KVA~120KVA User Manual
Move & Install
Danger
 Keep the equipment away from heat source or air outlets.
 In case of fire, use dry powder extinguisher only, any liquid
extinguisher can result in electric shock.
Warning
 Do not start the system if any damage or abnormal parts
founded.
 Contacting the UPS with wet material or hands may be subject
to electric shock.
Attention
 Use proper facilities to handle and install the UPS. Shielding
shoes, protective clothes and other protective facilities are
necessary to avoid injury.
 During positioning, keep the UPS way from shock or vibration.
 Install the UPS in proper environment, more detail in section
3.3.
Debug & Operate
Danger
 Make sure the grounding cable is well connected before
connecting the power cables, the grounding cable and neutral
cable must be in accordance with the local and national codes
practice.
 Before moving or re-connecting the cables, make sure to cut
off all the input power sources, and wait for at least 10
minutes for internal discharge. Use a multi-meter to measure
the voltage on terminals and ensure the voltage is lower than
36V before operation.
Attention
 The earth leakage current of load will be carried by RCCB or
RCD.
 Initial check and inspection should be performed after long
time storing of UPS.
Maintenance & Replacement
Danger
 All the equipment maintenance and servicing procedures involving
internal access need special tools and should be carried out only by
trained personnel. The components that can only be accessed by
opening the protective cover with tools cannot be maintained by
user.
 This UPS full complies with “IEC62040-1-1-General and safety
requirements for use in operator access area UPS”. Dangerous
voltages are present within the battery box. However, the risk of
contact with these high voltages is minimized for non-service
personnel. Since the component with dangerous voltage can only be
touched by opening the protective cover with a tool, the possibility of
touching high voltage component is minimized. No risk exists to any
personnel when operating the equipment in the normal manner,
following the recommended operating procedures in this manual.

NS3000 UPS 60KVA~120KVA User Manual
3
Battery Safety
Danger
 All the battery maintenance and servicing procedures involving
internal access need special tools or keys and should be carried out
only by trained personnel.
 WHEN CONNECTED TOGETHER, THE BATTERY TERMINAL
VOLTAGE WILL EXCEED 400Vdc AND IS POTENTIALLY
LEATHAL.
 Battery manufacturers supply details of the necessary precautions to
be observed when working on, or in the vicinity of, a large bank of
battery cells. These precautions should be followed implicitly at all
times. Particular attention should be paid to the recommendations
concerning local environmental conditions and the provision of
protective clothing, first aid and fire-fighting facilities.
 Ambient temperature is a major factor in determining the battery
capacity and life. The nominal operating temperature of battery is
20°C. Operating above this temperature will reduce the battery life.
Periodically change the battery according to the battery user manuals
to ensure the back-up time of UPS.
 Replace the batteries only with the same type and the same number,
or it may cause explosion or poor performance.
 When connecting the battery, follow the precautions for high-voltage
operation before accepting and using the battery, check the
appearance the battery. If the package is damaged, or the battery
terminal is dirty, corroded or rusted or the shell is broken, deformed
or has leakage, replace it with new product. Otherwise, battery
capacity reduction, electric leakage or fire may be caused.
 Before operating the battery, remove the finger ring, watch,
necklace, bracelet and any other metal jewelry
 Wear rubber gloves.
 Eye protection should be worn to prevent injury from accidental
electrical arcs.
 Only use tools (e.g. wrench) with insulated handles.
 The batteries are very heavy. Please handle and lift the battery
with proper method to prevent any human injury or damage to
the battery terminal.
 Do not decompose, modify or damage the battery. Otherwise,
battery short circuit, leakage or even human injury may be
caused.
 The battery contains sulfuric acid. In normal operation, all the
sulfuric acid is attached to the separation board and plate in the
battery. However, when the battery case is broken, the acid will
leak from the battery. Therefore, be sure to wear a pair of
protective glasses, rubber gloves and skirt when operating the
battery. Otherwise, you may become blind if acid enters your
eyes and your skin may be damaged by the acid.
 At the end of battery life, the battery may have internal short
circuit, drain of electrolytic and erosion of positive/negative
plates. If this condition continues, the battery may have
temperature out of control, swell or leak. Be sure to replace the
battery before these phenomena happen.
 If a battery leaks electrolyte, or is otherwise physically damaged,
it must be replaced, stored in a container resistant to sulfuric acid
and disposed of in accordance with local regulations.
 If electrolyte comes into contact with the skin, the affected area
should be washed immediately with water.

4 NS3000 UPS 60KVA~120KVA User Manual
Disposal
Warning
Dispose of used battery according to the local instructions
Warning
Dispose the packaging in the correct way
After unpacking save the shipping materials, recycle or dispose
them as law disposal
Warning
End product life
This product not be disposed of as urban waste:
The product’s components must be disposed of separately as a
Weee.
Any violations are punishable in accordance with the current
regulations.
Improper disposal of the product, or the improper use of the
product or its parts, may be harmful to the environment and to
human health.
In the states of the European community or If is provided of local
state disposal is possible return the product to the manufacturer,
or ask a withdrawal when is purchasing an equivalent
equipment.

NS3000 UPS 60KVA~120KVA User Manual
5
2. Product Introduction
2.1 System Configuration
The Tower UPS is configured by the following part: Power modules, Bypass &
Monitoring module, and cabinet with manual Bypass switch. One or several
battery strings should be installed to provide backup energy once the utility fails.
The UPS structure is shown in Fig. 2-1.
Fig. 2-1 UPS Configuration
2.2 Power Module
The power module structure is shown as Fig.2-2. The power module contains
a rectifier, an inverter, and a DC/DC converter for charge and discharge of the
external batteries.
Fig 2-2 Power module structure
2.3 Operation Mode
The Modular UPS is an on-line, double-conversion UPS that permits operation
in the following modes:
 Normal mode
 Battery mode
 Bypass mode
 Maintenance mode (manual bypass)
 ECO mode
 Auto-restart mode
 Frequency Converter mode

6 NS3000 UPS 60KVA~120KVA User Manual
2.3.1 Normal Mode
The inverter of power modules continuously supply the critical AC load. The
rectifier/charger derives power from the AC mains input source and supplies
DC power to the inverter while simultaneously FLOAT or BOOST charging its
associated backup battery.
Fig 2-3 Normal mode operation diagram
2.3.2 Battery Mode
Upon failure of the AC mains input power, the inverter of power modules, which
obtain power from the battery, supply the critical AC load. There is no
interruption in power to the critical load upon failure. After restoration of the AC
mains input power, the” Normal mode” operation will continue automatically
without the necessity of user intervention.
Fig 2-4 Battery mode operation diagram
Note
With the function of Battery cold start, the UPS may start without utility. See more detail in
section 5.1.2.

NS3000 UPS 60KVA~120KVA User Manual
7
2.3.3 Bypass Mode
If the inverter overload capacity is exceeded under Normal mode, or if the
inverter becomes unavailable for any reason, the static transfer switch will
perform a transfer of the load from the inverter to the bypass source, with no
interruption in power to the critical AC load. Should the inverter be
asynchronous with the bypass, the static switch will perform a transfer of the
load from the inverter to the bypass with power interruption to the load. This is
to avoid large cross currents due to the paralleling of unsynchronized AC
sources. This interruption is programmable but typically set to be less than 3/4
of an electrical cycle, e.g., less than 15ms (50Hz) or less than 12.5ms (60Hz).
The action of transfer/re-transfer can also be done by the command through
monitor.
Rectifier
AC/DC
Main
Static Bypass
Manual Bypass
Inverter
DC/AC
Charge/
Discharge
Output
Battery
Bypass
Fig. 2-5 Bypass mode operation diagram
2.3.4 Maintenance Mode (Manual Bypass)
A manual bypass switch is available to ensure continuity of supply to the critical
load when the UPS becomes unavailable e.g. during a maintenance procedure.
(See Fig.2-6).
Rectifier
AC/DC
Main
Static Bypass
Manual Bypass
Inverter
DC/AC
Charge/
Discharge
Output
Battery
Bypass
Fig .2-6 Maintenance mode operation diagram
Danger
During Maintenance mode, dangerous voltages are present on the terminal of input, output
and neutral, even with all the modules and the LCD turned off.

8 NS3000 UPS 60KVA~120KVA User Manual
2.3.5 ECO Mode
To improve system efficiency, UPS rack system works in Bypass mode at
normal time, and inverter is standby. When the utility fails, the UPS transfers to
Battery Mode and the inverter powers the loads.
Fig.2-7 ECO Mode operation diagram
Note
There is a short interruption time (less than 10ms) when transfer from ECO mode to battery
mode, it must be sure that the interruption has no effect on loads.
2.3.6 Auto-restart Mode
The battery may become exhausted following an extended AC mains failure.
The inverter shuts down when the battery reaches the End of Discharge Voltage
(EOD). The UPS may be programmed to “System Auto Start Mode after EOD”.
The system starts after a delay time when the AC mains recovers. The mode
and the delay time are programmed by the commissioning engineer.
2.3.7 Frequency Converter Mode
By setting the UPS to Frequency Converter mode, the UPS could present a
stable output of fixed frequency (50 or 60Hz), and the bypass static switch is
not available.
2.4 UPS Structure
2.4.1 UPS Configuration
The UPS configuration is provided in Table 2.1
Table2.1 UPS Configuration
Item Components Quantity/ pcs Remark
Cabinet
Circuit Breaker 4 Requisite, factory
installed
Bypass &
Monitoring module 1 Requisite, factory installed
Dust filter 1 Optional.

NS3000 UPS 60KVA~120KVA User Manual
9
2.4.2 UPS Outlook
The UPS outlook is shown as Fig.2-8 to Fig. 2-11.
Fig.2-8 60KVA System outlook
Anchor Bolt
Front Door
Dust Filter
Fig. 2-9 90-120KVA System outlook

10 NS3000 UPS 60KVA~120KVA User Manual
SPD
Communication Interface
Power Cable Connectors
Dry contact
Cold Start
Main Input CB
Ouput CB
Maintenance Bypass CB
Bypass CB
LCD Control Panel
Power Module
Cable Entry Hole
Fig. 2-10 90-120KVA System outlook-Front View
Cabinet Aerial Socket
Bypass Fans
P D U
Fig. 2-11 90-120KVA System outlook-Back View

NS3000 UPS 60KVA~120KVA User Manual
11
3. Installation Instruction
3.1 Location
As each site has its requirements, the installation instructions in this section are
to act as a guide for the general procedures and practices that should be
observed by the installing engineer.
3.1.1 Installation Environment
The UPS is intended for indoor installation and uses forced convection cooling
by internal fans. Please make sure there is enough space for the UPS
ventilation and cooling.
Keep the UPS far away from water，heat and inflammable and explosive,
corrosive material. Avoid installing the UPS in the environment with direct
sunlight, dust, volatile gases, corrosive material and high salinity.
Avoid installing the UPS in the environment with conductive dirt.
The operating environment temperature for battery is 20℃-25℃. Operating
above 25℃ will reduce the battery life, and operation below 20℃ will reduce the
battery capacity.
The battery will generate a little amount of hydrogen and oxygen at the end of
charging; ensure the fresh air volume of the battery installation environment
must meet EN50272-2001 requirements.
If external batteries are to be used, the battery circuit breakers (or fuses) must
be mounted as close as possible to the batteries, and the connecting cables
should be as short as possible.
3.1.2 Site Selection
Ensure the ground or installation platform can bear the weight of the UPS
cabinet ,batteries and battery rack．
No vibration and less than 5 degree inclination horizontally.
The equipment should be stored in a room so as to protect it against excessive
humidity and heat sources.
The battery needs to be stored in dry and cool place with good ventilation. The
most suitable storage temperature is 20 ºC to 25ºC.
3.1.3 Size and Weight
The size of three views for the UPS cabinet is shown in Fig.3-1.
Attention
Ensure there is at least 0.8m before the front of the cabinet so as to easily maintain the
power module with the front door fully open and at least 0.5m behind for ventilation and
cooling. The room reserved for the cabinet is shown in Fig.3-3.

12 NS3000 UPS 60KVA~120KVA User Manual
Fig.3-1 Size of the 60KVA UPS (Unit : mm）
Fig.3-2 Size of the 90-120KVA for the cabinet（Unit：mm）

NS3000 UPS 60KVA~120KVA User Manual
13
500
500
800
Fig.3-3 Room reserved for the cabinet（Unit：mm）
The weight for the UPS cabinet is shown in Table 1.1
Table 1.1Weight for the cabinet
Configuration
Weight
UPS 60KVA 176Kg
UPS 90KVA 231Kg
UPS 120KVA 266kg
3.2 Unloading and Unpacking
3.2.1 Moving and Unpacking of the Cabinet
The steps to move and unpack the cabinet are as follows：
1. Check if any damages to the packing. (If any, contact to the carrier)
2. Transport the equipment to the designated site by forklift, as shown in
Fig.3-3.

14 NS3000 UPS 60KVA~120KVA User Manual
Fig.3-3 Transport to the designated site
3. Open the top plate of the steel-edged wooden case with slotted awl and
pier, followed by side boards (see
Fig.3-4).
Fig.3-4 Disassemble the case
4. Remove the protective foam around the cabinet.
Fig.3-5 Remove the protective foam
5. Check the UPS.
(a) Visually examine if there are any damages to UPS during