TECHNOWARE EVO STAR 10 Installation and User Manual

EVO STAR

Uninterruptible Power Supply

EVO STAR 10 – 50KVA

Installation and user manual

Tecnoware Power Systems

EVO STAR 10-50

2

INTRODUCTION

The Uninterruptible Power Supply EVO STAR provides critical loads with continuous

computer grade power. Reliability and performance are the key design considerations. The UPS

design also maximizes isolation of the load from disturbances and interruptions, minimizes

maintenance and repair time with its slide out modular system, and provides monitoring of

significant system operating characteristics.

Proper installation and operation of the UPS are equally important factors in system

reliability. This manual provides complete information on installation, operating and

preventative maintenance of the UPS and Battery Cabinet. Illustrations showing the function of

all operator controls, instruments, alarms and indicating lights are also given.

This manual is for EVO STAR from 10 to 50 Kva.

Tecnoware Power Systems

EVO STAR 10-50

3

GENERAL INDEX

INTRODUCTION...........................................................................................2

EMERGENCY PROCEDURES...................................................................6

1

IDENTIFYING PACKAGED U.P.S................................................8

1.1 VERIFYING THE GOODS............................................................................... 8

2

HANDLING, STORING AND POSITIONING ............................9

2.1 HANDLING ........................................................................................................ 9

2.2 U.P.S. STORAGE .............................................................................................. 9

2.2.1 U.P.S. .......................................................................................9

2.2.2 BATTERY CABINETS....................................................................9

2.3 POSITIONING................................................................................................ 10

CHOOSING THE ROOM..............................................................10

2.3.1 10

3

GENERAL DESCRIPTION ............................................................11

3.1 OPERATING PRINCIPAL............................................................................. 11

3.1 DESCRIPTION AND PARTS .................................................................................. 11

3.1.1 RECTIFIER................................................................................12

3.1.2 INVERTER ................................................................................12

3.1.3 STATIC COMMUTATOR ...............................................................13

3.2 DESCRIPTION AND PARTS........................................................................ 13

3.3 PART LAYOUT ................................................................................................ 14

3.3.1 BREAKERS...............................................................................16

3.3.2 FUSES ....................................................................................16

3.3.3 TERMINAL CONNECTORS ..........................................................17

3.3.3.1

POWER UP TO 50 KVA .............................................................. 17

3.4 CONNECTING THE U.P.S. TO THE MAINS SUPPLY............................ 18

3.4.1 COMPATIBILITY WITH THE POWER SUPPLY .................................18

3.4.1.1

INDIRECT POWER SUPPLY ........................................................ 19

3.4.1.2

INPUT WIRE SIZING ................................................................ 19

3.4.1.3

PROTECTION OF THE U.P.S. OUTPUT LINE.................................. 19

3.4.2 CONNECTING THE SYSTEM........................................................20

3.5 CONNECTING THE BATTERIES TO THE U.P.S............................................... 21

3.5.1 CONNECTION TO A 120cm HEIGHT BATTERY CABINET ..................21

CONNECTING WITHOUT THE RISERVE LINE ( standard) .........................22

CONNECTING WITH RESERVE LINE ( optional) ......................................22

CONNECTING WITH RESERVE LINE ( optional) ......................................23

Tecnoware Power Systems

EVO STAR 10-50

4

3.5.2 CONNECTION TO A 180cm HEIGHT BATTERY CABINET...................24

4

STARTING-UP AND SHUTTING DOWN THE MACHINE .... 25

4.1 STARTING-UP THE MACHINE ...................................................................25

4.2 SHUTTING DOWN .........................................................................................26

4.2.1 EMERGENCY POWER OFF SWITCH (optional)................................26

5

ACTIVATING THE MANUAL BY-PASS .................................... 27

5.1 ACTIVATING THE BY-PASS KEEPING THE U.P.S SWITCHED ON.28

5.2 ACTIVATING THE BY-PASS SHUTTING DOWN THE U.P.S..............28

6

CHECK TOOLS................................................................................ 29

6.1 THE CONTROL PANEL AND ITS FUNCTIONS .......................................29

6.1.1 MONITORING...........................................................................31

6.1.2 DIAGNOSTIC TOOLS .................................................................32

6.1.2.1

EVENT AND HISTORY MENUS ....................................................32

6.1.2.2

BATTERY TEST.........................................................................34

6.1.3 FUNCTIONING MODE CONFIGURATION .......................................34

6.1.3.1

BATTERY CHARGE MODE...........................................................34

6.1.3.2

FORCING ON INVERTER MODE ..................................................34

6.1.4 STRUCTURE MENU....................................................................35

6.2 P.C. INTERFACE .............................................................................................39

6.3 REMOTE PANEL (OPTIONAL)....................................................................39

6.3.1 INSTALLATION OF REMOTE PANEL WITHOUT E.P.O. .....................40

6.3.2 INSTALLING THE REMOTE PANEL WITH E.P.O. .............................42

7

BATTERIES ..................................................................................... 43

7.1 EXTERNAL BATTERY CABINETS...............................................................44

7.1.1 DESCRIPTION OF THE B2 BATTERY CABINET WITH BATTERIES FROM

40A/H 45

7.1.2 DESCRIPTION OF THE B4 MODEL BATTERY CABINET FROM 65 UP TO

130 A/H............................................................................................46

8

TECHNICAL CHARTS ................................................................... 47





All trademark are property of their respective owners.

TECNOWARE s.r.l.

www.service.tecnoware.com

This manual has been printed and edited by TECNOWARE s.r.l.

Tecnoware Power Systems

EVO STAR 10-50

5

WARNING

PLEASE READ THIS TECHNICAL HANDBOOK VERY CAREFULLY

BEFORE CARRYING OUT INSTALLATION PROCEDURES

PLEASE KEEP THIS HANDBOOK IN A WELL-KNOWN PLACE

WITHIN REACH OF ALL UPS USER

In this handbook you will find explanations on how to install, set-up, and use the uninterrupted

static power supply.

All technicians and users who are about to use these UPS must have previously read this

handbook.

Only technicians trained by Tecnoware only must carry out the installation and maintenance.

Inside this machine there are continuously working fans, therefore do not insert

any type of object in the ventilation grids.

Please use protective rubber gloves when working on damaged batteries.

Never remove the doors and protection covers while the equipment is operative.

When working on the UPS you must remove any metallic objects you may be

wearing, such as rings, watches, pens and any other type of object which could

provoke a short circuit when operating inside the machine.

There are dangerous voltages in the uninterruptible static power supply even

when it’s turned off with all the switches switched off and with the access covers

removed!

There is a dangerous voltage at the ends of the batteries even when the switches

are disconnected.

Please operate very carefully on the batteries; a short circuit can cause great

damage to people or objects.

Do not smoke and do not use a naked flame when working on the equipment.

If the uninterruptible power supply system or the room where this is installed

should catch fire never use water to put out the flames.

Tecnoware Power Systems

EVO STAR 10-50

6

CAUTION!

EMERGENCY PROCEDURES

If there is an emergency it is possible to disconnect the power supply charge by switching

off all the switches on the control panel. On the machines that are equipped you may press the

E.P.O. button.

PEOPLE HIT BY ELECTRICAL DISCHARGE

Ask immediately for the help of a qualified and trained person.

When a rather high voltage and high intensity electric hit a body current this can provoke

burns. The burns appear in and around the areas where the current enters and exits the body.

Even if only small burns are visible on the skin, the tissues beneath could be seriously

damaged. In any case, and however serious the burn may be, NEVER TOUCH the injured

person with bare hands until you are sure that the electricity has been cut off.

SYMPTOMS AND SIGNS

 Redness, edema, skin burns or skins carbonisation in the areas where the electricity

entered and exited the body.

 The person may loose consciousness.

 The person may stop breathing or his/her heart may stop beating.

 Shock symptoms.

FIRST AID

Cut off the power supply and move the injured person away from the source of contact. Call

immediately for an ambulance and, if necessary, for the help of a technician specialised in

electrical equipment.

Tecnoware Power Systems

EVO STAR 10-50

7

PEOPLE WHO HAVE COME INTO CONTACT WITH CORROSIVE LIQUIDS

Ask immediately for qualified expert help.

All batteries installed in this system are completely dry and no corrosive liquids leak out of

their cases if the batteries are in perfect condition. If the storage batteries get damaged in any

way, this could provoke the leakage of the electrolyte or a short circuit of the internal cells; the

electrolyte is corrosive and causes burns.

SYMPTOMS AND SIGNS

 A piercing sensation on the skin.

 The skin will appear reddened sometimes with small blisters and exfoliation.

FIRST AID

Place the injured area under a strong jet of cold running water for at least 10 minutes so as

to avoid further damage to the tissues.

N.B. Make sure that the water can flow away freely as the substance that caused the burn

contaminates it. While swilling the injured area be careful not to splash yourself with

contaminated water. Call for an ambulance immediately.

.

If the electrolyte comes into contact with eyes you must intervene immediately by washing

them with running water until expert medical help arrives.

If the battery electrolyte is swallowed it is advisable to make the injured person drink plenty of

milk or water.

IN ALL CASES ASK FOR EXPERT MEDICAL HELP

Tecnoware Power Systems

EVO STAR 10-50

8

1 IDENTIFYING PACKAGED U.P.S.

On receiving the goods you should verify the contents. On the front of the package you will

find the sticker which will allow you to identify the contents.

In the picture you can see the identity sticker which is placed on the packaging of the

equipment:

Picture 1

In the picture you can see the identity sticker placed on the packaging of the battery:

Picture 2

1.1 VERIFYING THE GOODS

After making sure that the goods are those required, please check that the equipment has

not been damaged. In order to do this you must verify the integrity of the packaging. After

having removed the packaging check that the metal panels have not been damaged during

transport. If the goods are not compliant in any way please put them back in their original

packaging and send them back to the manufacturer.

1. Specifies voltage and frequency input

admittance

2.

Specifies voltage and frequency

output admittance

3.

Specifies the number of batteries

which may be

3. inside the machine

4. Specifies internal battery capacity

5.

Specifies the serial number of the

product

6. Specifies weight

1. Specifies the battery cabinet model

2.

Specifies the number of batteries

contained

3. Specifies battery capacity

4.

Specifies the serial number of the

product

5. Specifies weight

3

5

7

2

4

6

1

2

3

4

5

Tecnoware Power Systems

EVO STAR 10-50

9

2 HANDLING, STORING AND POSITIONING

2.1 HANDLING

1. Remove the screws which fasten the machine to the pallet (Picture 3).

2. Remove the wooden pallet by using a lift truck and carefully place it on the floor (Picture 4).

3. For floor handling you will only need a transpallet with a suitable loading capacity.

Picture 3

2.2 U.P.S. STORAGE

2.2.1 U.P.S.

If you need to store the UPS this must be protected from dust and dirt (even if it is well

packaged). It must not be exposed to the inclemency of the weather and the room shouldn’t

be too humid (humidity below 90% non-condensing), nor should the UPS be exposed to

sources of heat; room temperature should be between +1 e +40°C.

2.2.2 BATTERY CABINETS

If you need to store a complete battery cabinet, you should respect all the conditions

mentioned in the previous paragraph. You should also remember that battery discharge over

time, even when not in use, therefore it is necessary to recharge them every 4 months.

In any case, you must follow the manufacturers’ indications to store the batteries.

Non-compliance with these indications can cause an efficiency decrease and a

shorter life of the storage batteries.

Tecnoware Power Systems

EVO STAR 10-50

10

2.3 POSITIONING

Installation space varies according to the size of the U.P.S (see charts 8) and to the battery

cabinet. A distance margin from the walls of the room where the U.P.S. is positioned is also

necessary for air circulation and ordinary/extraordinary maintenance. Please refer to picture 5

for minimum margin distances. All models need a distance margin of at least 40cm either side

or at least a metre from the ceiling.

Picture 4

2.3.1

CHOOSING THE ROOM

Element Requirements

Room access

•

All the doors which the equipment has to go through in order to reach the

chosen room have to be large enough to allow the passage of the U.P.S

(charts 8) and its handling equipment

. We advise you to forbid access to

the place where the U.P.S. and its battery cabinets are placed to all non

authorized users.

Room size

•

Room space must be suitable to allow installation of the equipment and

periodical and extraordinary maintenance.

• Wh

en choosing the rooms please remember that the equipment must not

be exposed to the inclemency of the weather, to corrosive substances, to

excessive humidity (humidity below 90% non-

condensing) or to very high

sources of heat.

• The environment should not be

very dusty. Please be very careful if you

decide to carry out any building work after setting up the machine.

Floor load

• According to the data in charts 8 you must check that the floors of the

chosen rooms can support the equipment’s weight.

Ventilation

• Room temperature should be preferably between 15° and 25°C

•

Ventilators expel the heat dissipated by the U.P.S. into the air, therefore the

room structure must be suitable to guarantee sufficient aeration to

eliminate the heat produced by the U.P.S.

• If room temperature does not comply with the recommended parameters or

if air circulation in the room is not adequate, you must supply the room with

a ventilation system or, if this should not be sufficient, install an air

conditioning system.

Safety rules

•

The rooms where the U.P.S. is installed must be equipped according to fire

and safety regulations.

40

cm

40

cm

40

cm

U.P.S. from 10 to 50 KVA

Tecnoware Power Systems

EVO STAR 10-50

11

3 GENERAL DESCRIPTION

3.1 OPERATING PRINCIPAL

The U.P.S. is a continuous double conversion system with an output transformer. It works

by carrying out a continuous double conversion of the main supply, guaranteeing a constant

stablized supply of both voltage and frequency, maintaining charge and control of the batteries

(On-line functioning). In order to guarantee continuous supply when the voltage of the electric

system are no longer correct, power is drawn from the batteries. The system is supplied

complete with an automatic static commutator that connects the output to the back-up power

supply, or if there are special alarms such as the E.P.O. (Emergency Power Off) it shuts down

completely output voltage.

3.1 DESCRIPTION AND PARTS

During normal functioning (picture 5) the system takes power from the mains by means of the input terminal (1).

The voltage goes through the disconnecting switch (point 4) and the fuse board (point 6/a) in order to reach the rectifier

module (point 7), exiting which is a continuous controlled voltage available to charge or maintain battery efficiency

through the fuse (6/b) and the “battery disconnecting switch” (point 8) and to the inverter input (11). This step is to

generate a three-phase voltage, stabilized and synchronized with the back-up voltage. The static commutator (11) selects

the power source to power the load, usually on inverter (10). If there is an increase of output current or with specific

alarms, the device (12) will commutate to the emergency supply (7) maintaining output continuity. If transferring takes

place, output continuity is allowed by the synchronism of the voltages generated with the emergency voltage. If

asynchronous commutation should take place there will be a power “dip” for maximum 20 ms.

When the power supply is not in the set parameters, the equipment maintains output voltage by taking power from the

batteries (picture 9). The system is provided with a current control that keeps the current inside set parameters in the

event of current overloaded.

4

3

2

5

6/a

7

6/b

1

10

8

9

11

12

13

Emergency network

(optional)

Linea di by-pass

1. Main voltage

2. Manual By-pass

3. Disconnecting

switch back-up line

4. Disconnecting

switch main

5. Back-up network

fuse board

6. Fuse board

a) Main input

b) Battery

7. Rectifier

8. Battery switch

9. Battery

10. Inverter

11. Static

commutator

12. System output

disconnector

13. Exit

Picture 5

1/A

RECT. INV.

B.M.

B.S.

BATT.

Tecnoware Power Systems

EVO STAR 10-50

12

3.1.1 RECTIFIER

The rectifier, indicated in picture 5 with the abbreviation RECT. transforms alternating current voltage of the main

line to direct current voltage. Its engineering allows, through a six pulse absorption, to feed the inverter in its status of

maximum voltage output at the same time as the battery charge.

Normally, direct current voltage is constantly set at 436Vdc (sustaining voltage), but when recharging the batteries,

this voltage will be automatically limited by a current limiter.

3.1.2 INVERTER

The inverter, indicated in picture 5 with the abbreviation INV., has the role of transforming direct current voltage,

taken from the rectifier output, into sinusoidal voltage, which may be used by the user. This process is carried out by

using power semiconductors, piloted by a PWM signal, which through a transformer and a capacitance filter give us a

very stable three-phase voltage with a harmonic distortion lower than one unit.

The controlling logic of the inverter also controls output current intensity limiting it to a value which

corresponds to 150% nominal current voltage

Input voltage TO BATTERIES

TO INVERTER

U

V

W

Output voltage

L1 L2

L3

LN

Tecnoware Power Systems

EVO STAR 10-50

13

3.1.3 STATIC COMMUTATOR

The static commutator indicated in picture 5 as B.S., is a commutator made with semiconductors which can select

which power source to connect appliances to. During normal functioning the U.P.S. output is taken at the inverter output

(U.P.S. on-line), but if there is an internal or external event it will commute to the reserve system.

Commutating from one source to another occurs without creating voltage “dips” only with

conditions of synchronism between inverter output and the reserve system. If there is forced

commuting, without synchronism, decided by the user, this will occur with a voltage dip of max.

20 Sm.

Commuting Conditions on inverter:

1. Inverter switched on and working and synchronized with the

reserve system

2. Loss of system

3. Voluntary forcing through control panel

Commuting Conditions on reserve:

1. Malfunctioning of the inverter

2. Current overcharge

3. U.P.S. switched off

4. Voluntary forcing through control panel

5. By-manual closing of the breaker

3.2 DESCRIPTION AND PARTS

During normal functioning (picture 6) the system takes power from the mains by means of

the input terminal (B). The voltage goes through the disconnecting switch and the fuse board

in order to reach the rectifier module (C), exiting which is a continuous controlled voltage

available to charge or maintain battery efficiency and to the inverter input (E). This step is to

generate a three-phase voltage, stabilized and synchronized with the back-up voltage. The

static commutator (F) selects the power source to power the load, usually on inverter (E). If

there is an increase of output current or with specific alarms, the device (F) will commutate to

the emergency supply (A) maintaining output continuity. If transferring takes place, output

continuity is allowed by the synchronism of the voltages generated with the emergency

voltage. If asynchronous commutation should take place there will be a power “dip” for

maximum 20 ms.

Picture 6

Tecnoware Power Systems

EVO STAR 10-50

14

When the power supply is not in the set parameters, the equipment maintains output

voltage by taking power from the batteries (Picture 7). The system is provided with a current

control that keeps the current inside set parameters in the event of current overloaded.

Picture 7

3.3 PART LAYOUT

It is important to be familiar with the parts that are necessary during the

connection procedures before connecting the equipment. In order to access the

parts which will be described you must remove the “second access”, which is

the metal panel used to protect the inside parts of the U.P.S. and also to

protect the user from accidental contacts with live parts.

Picture 8

KEY

A = Display board

B = Relay board

C = Interface connector

D = Terminal

E = Breakers

F = Fuse cards

= Earthing

Tecnoware Power Systems

EVO STAR 10-50

15

Main switch

Terminal board

Main input and battery

fuses

Back-up input fuses

(optional)

Battery switch

System output switch

Manual by-pass switch

Reserve switch

(optional)

User interface board

Battery cabinet

Tecnoware Power Systems

EVO STAR 10-50

16

3.3.1 BREAKERS

The U.P.S. has a system of breakers, which allows the user to carry out the necessary

operations in order to use and carry out maintenance on the equipment and to shut down the

power supply if there is an emergency. A sticker placed on the second access specifies the

name of each switch near the switch itself. The by-pass switch contains a protection device so,

as it cannot be disconnected inadvertently. The user can remove this protection device if

he/she decides to carry out a manual by-pass (Chapter 5).

1. MAINS SWITCH Break the mains supply, as specified in point 1 (picture 6).

2. RESERVE SWITCH Break the secondary power supply, as specified in point 7 (picture 6).

3. MANUAL BY-PASS Short-circuits the secondary input with the output.

4. OUTPUT SWITCH Break the loading power supply.

5. BATTERY SWITCH Break, according to the model, one or both battery polarities.

3.3.2 FUSES

The U.P.S. includes a system with two fuse groups, both counting three fuses each which

are able to disconnect electrical power input (points 1 and 7 picture 6), when the electrical

power is not within the set parameters. The type of fuse, which is used, guarantee quick

intervention and therefore are a guarantee also for optimum protection of the internal devices.

Furthermore, there is also a fuse on the line, which connects the U.P.S. to the batteries (point

6 picture 6), both for internal and external batteries.

Picture 12

Board A, (picture 12), to the user’s left, protects the state of the rectifier input, board B

(picture 12), to the user’s right, protects the reserve line. Whereas the single-fuse board C

protects the battery line.

Tecnoware Power Systems

EVO STAR 10-50

17

3.3.2.1 REPLACING THE FUSES

CAUTION!: ALL CONNECTING PROCEDURES DESCRIBED IN THIS

CHAPTER MUST BE CARRIED OUT BY AUTHORIZED ELECTRICIANS OR BY

QUALIFIED TECHNICIANS.

CAUTION!: BEFORE REPLACING THE FUSES YOU MUST CARRY OUT THE

MANUAL BY-PASS PROCEDURE WITH THE U.P.S. DISCONNECTED

(CHAPTER 5).

A nut screw fastens each fuse. When replacing a fuse you must unscrew the two knurled

nuts corresponding to the fuse, which must be replaced, remove the washers, replace the fuse

and put back the washers and the knurled nut in this order. IMPORTANT spare fuses are

supplied together with the U.P.S. If they have to be purchased please make sure that they are

extra-fast fuses for the current same as on machine so as to guarantee total protection.

3.3.3 TERMINAL CONNECTORS

3.3.3.1 POWER UP TO 50 KVA

In all the models the terminal board is on the front of the U.P.S. protected by the second

access.

It can be perpendicular or horizontal according to the model.

In any case, please refer to the alphanumeric specifications on the terminal board. The

jumpers are arranged as in the picture (highlighted in grey), and are used to short-circuit the

main input and the reserve input. According to the type of installation, you can remove them

to connect the system to an auxiliary power source (back-up supply, generator).

Picture 13

U, V, W = Main input

U1, V1, W1, N1 = Reserve input

U2, V2, W2, N2 = Output

D(-),C(+) = Battery pole input. D(-) negative pole, C(+) positive pole.

Tecnoware Power Systems

EVO STAR 10-50

18

3.4 CONNECTING THE U.P.S. TO THE MAINS SUPPLY

CAUTION!: ALL CONNECTING PROCEDURES DESCRIBED IN THIS

CHAPTER MUST BE CARRIED OUT BY AUTHORIZED ELECTRICIANS OR BY

QUALIFIED TECHNICIANS.

CAUTION!: THE U.P.S. NEED A NEUTRAL WIRE. THE SYSTEM CANNOT

WORK WITHOUT IT.

3.4.1 COMPATIBILITY WITH THE POWER SUPPLY

The parallel connection to the public mains is normally allowed, as the U.P.S. is comparable

to a passive charge. The mains supply must supply a higher power than the U.P.S rated power

as it has to take into account several factors, such as:

1. Power absorbed by the output charge on the uninterruptible power supply

2. System efficiency (see chart 15)

3. Power needed to charge the batteries

4. Input harmonic distortion

If you know the amount of power needed by the connected electrical equipment and you

can evaluate the probable expansion margins it is possible to make a first rough estimate of

the power required. As for the power absorbed by the batteries while charging, you can easily

work out the power required by multiplying 436 times 1/10 of the total battery capacity (E.g.:

For a 40A/h battery space, the power needed to charge the battery will be: 436 X (40 / 10) =

1,744 kW). As for input harmonic distortion please remember that for the power supply the

uninterruptible power supply is to be considered as a non-linear load, which generates

harmonic frequency currents multiples of (50/60 Hz). In function of the line impedance this

creates an harmonic voltage distortion. This latter value (total harmonic voltage distortion)

must not exceed the specific environment reference parameters. There are several ways of

reducing this parameter: by increasing the power supply, the section of power supplies cables

or by choosing an interruptible power supply with specific features (twelve-phase input, with

filter).

Tecnoware Power Systems

EVO STAR 10-50

19

3.4.1.1 INDIRECT POWER SUPPLY

TRANSFORMER

If you are using a system input isolation transformer this will reduce distortion effects and

stop its diffusion in the system. Therefore, apart from decreasing harmonic disturbance you

can also probably avoid oversizing the power supply line.

GENERATOR

Particular attention must be paid when sizing a possible input power unit; this has high

output impedance, which is defined on the rating plate as subtransient reactance of the

alternator. This parameter makes a negligible harmonic current distortion become a seriously

disturbing element for the correct functioning of the U.P.S.

3.4.1.2 INPUT WIRE SIZING

When choosing the wire you must bear in mind a technical, economical and safety

evaluation. Technically speaking, the main factors that affect wire sizing are voltage, current,

overcurrent, temperature and how the wires are laid. However, it is always a good rule to size

the wires so as the voltage drop on each wire is below 3% of the applied voltage. Particularly

important is the sizing of the neutral wire especially when the U.P.S. is used to power

unbalanced loads or loads with strong harmonic distortion. Taking into account these last

remarks, the enlargement factor must be decided according to the size of the phase wire

(usually 1,5-2 times).

3.4.1.3 PROTECTION OF THE U.P.S. OUTPUT LINE

The main electric distribution systems to which the U.P.S. can be connected are the TN-S

and TT systems (pictures 14 and 15). If you do not have this type of equipment please talk to

a specialized technician. The protection devices, which can be applied to the U.P.S. output line,

are against overcurrent and are differential. As for their size, please bear in mind that if there

is a power shortage the U.P.S. works on its own (disconnected from the main line), with a

current restriction equal to 150% of the rated current, therefore in order to protect against

overcurrent you must choose a device that is activated within this threshold. As for differential

protections you must use type A differentials (for alternate current and for switches with

continuous components), which are low sensitivity (0,3–0,5-1 A).

Tecnoware Power Systems

EVO STAR 10-50

20

3.4.2 CONNECTING THE SYSTEM

To connect the U.P.S. you must carry out the following procedures:

1. Open the front door, the key is attached to one of the supporting feet

2. Shutdown all breakers.

3. Verify the integrity of the by-pass breaker lock out

4. Make sure there is no voltage on the mains supply

5. Unscrew the second access panel setscrews and remove the panel

6. Connect the earthling wire for the mains to the earth bar

7. Connect the general mains to the U, V and W terminals of the U.P.S. ( in cyclic sense)

8. If the back-up supply mains are available disconnect the jumpers from terminals U1 and U,

V1 and V, W1 and W, then connect the back-up supply to the U1, V1 and W1 terminals

9. Connect the supply mains neutral wire to the N1 terminal

10. Connect the mains that power the connected electric equipment to U2, V2 e W2 terminals

at the U.P.S. output

11. Connect the mains neutral wire that powers the connected electric equipment to the N2

terminal at the U.P.S. output

12. If you need to connect external battery compartments please proceed to the following

paragraph.

13. Replace the second access panel and fasten its screws.

14. Lock the front door with its key

15. Reassemble the side grids on the supporting base

Page is loading ...

TECHNOWARE EVO STAR 10 Installation and User Manual

TECHNOWARE EVO STAR 10 Installation and User Manual

Related papers

Other documents