TECHNICAL SPECIFICATION UNINTERRUPTIBLE POWER SYSTEM (UPS) RATED POWER 80KVA72KW

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TECHNICAL SPECIFICATION



Uninterruptible power system (UPS)



RATED POWER 80kVA/72kW – Three Phases

10min BUT @ 72 kW of load




TABLE DES MATIÈRES

ABBREVIATIONS 2

USER GUIDE 2

1. PURPOSE OF THE SPECIFICATION DOCUMENT 2

2. NORMATIVE CONFORMITY 3

3. ORIGINE 3

4. GLOBAL DESCRIPTION OF A STATIC UNINTERRUPTIBLE POWER SUPPLY 3

4.1. General characteristics 4

4.2. Rectifier 5

4.3. Battery management 5

4.4. Energy storage 6

4.5. IGBT inverter with integrated isolation transformer 6

4.6. Automatic static bypass 7

4.7. Manual maintenance bypass built in the UPS 7

4.8. External maintenance manual bypass 7

5. CONSTRUCTION SPECIFICATION 8

6. USER INTERFACE, controls and alarms  9

7. FACTORY TESTING AND INSPECTION 10

8. COMMISSIONING 10

9. MAINTENANCE CONTRACT 10



ABBREVIATIONS

For the purpose of this document, we have used the following standard abbreviations:


UPS Uninterruptible Power Supply

IGBT Insulated Gate Bipolar Transistor

DSP Digital Signal Processor

THDU Total Harmonic Distortion Voltage (Phase/Phase)

THDI Total Harmonic Distortion in Current

VFI Voltage and Frequency Independent

Output Voltage and frequency of the UPS independent from the input voltage and frequency thanks to the double conversion AC/DC & DC/ AC

AC Alternative Current

N Neutral

Generic symbol used for neutral connection

VRLA Valve Regulated Lead Acid

AGM Absorbent Glass Mat

EMC Electro Magnetic Compatibility

IEC International Electrotechnical Commission

EC European Conformity

EN European Norms


USER GUIDE

Paragraphs shown in red refer to options. They should be deleted if these options are not relevant to the current project.

Text in grey is to be completed, edited or selected according to the needs of the project.

Notes shown in purple are intended for specification users (engineering consultants or Socomec spec engineers).

Delete these notes before the specification is published.

The table of content shall be updated to this personalized specification

  1. PURPOSE OF THE SPECIFICATION DOCUMENT

This specification document describes the system of ..n.. double conversion Uninterruptible Power Supply system(s) (hereafter referred to as UPS) with isolation transformer embedded to the inverter, meaning integrated to the converter DC/AC (transformer based). This transformer has to ensure the galvanic isolation between main 1 and main 2, and also between the DC buc (battery included) & the output.

The system must provide high quality power to protect sensitive equipment which maximum power is …. kVA, …. kW.

The technical reference is SOCOMEC UPS DELPHYS MP elite +, 80 kVA/ 72 kW of rated power and system-installed as a standalone unit / redundant (1+1) / parallel / parallel redundant (N+1) or as a similar solution approved by us.

If case of several modules in parallel, please make sure you clearly specify the number of units included in the system.

If case of several parallel systems, please make sure you clearly specify the number of systems.


  1. NORMATIVE CONFORMITY

The system must comply with the following UPS standards:

  1. ORIGINE

The UPS must be developed, manufactured and tested in a European country (France). The development and the production site must be certified according to ISO14001 (Environmental management system) and ISO 9001 (Quality management system).

The UPS covered by this specification must have the EU marking, in accordance with European directive on safety and electromagnetic: 2014/35/UE (Low voltage directive) et 2014/30/UE (EMC). Relevant documentation and certificates must be made available on request.


  1. GLOBAL DESCRIPTION OF A STATIC UNINTERRUPTIBLE POWER SUPPLY

Each UPS must include the following sub-assemblies:


    1. General characteristics

Environment


Each UPS module must comply with the following key technical specifications:

Apparent rated power

80 kVA

Active rated power (Pn)

72 kW

Type of network (input/output)

Three-phase / Three-phase

UPS classification

VFI - SS – 111

Number of network inputs

Separate by-pass and rectifier network/ common

Rated input voltage

380 - 400 - 415 V

Rated input frequency

50 / 60 Hz

Rated output voltage

380-400-415 V sinusoidale

Rated output frequency

50 / 60 Hz

Acoustic pressure measured with a rated load and at a distance of 1 m (according to ISO 3746)

65 dBA

Dimensions of a UPS module (WxDxH in mm)

1003x850x1931mm

Weight of a UPS module

740 kg

Protection Index according to EN/IEC 60529-2

IP 20

Isolation transformer

Integrated to the inverter (transformer based)

Input neutral system

IT / TNS / TNC

Output neutral system

IT / TNS / TNC


For parallel systems, it will be possible to optimize the energy consumption by automatically adjusting the number of units coupled to the load when the installation is operating at partial load. In case of low load level, the over redundant modules are turned to “hot stand-by”. The load sharing will be balanced between the remaining still working in online double conversion (VFI-SS-111). Combined with low “stand-by units” power consumptions, the load rate increase on each available unit will result to the global efficiency improvement

For maximum power availability, this mode will be active in normal operation (no alarm present, input networks present and within tolerance). Equalization of operating hours of each unit will ensure a uniform aging of system components.

Automatic system transfer on bypass (eg in case of downstream short-circuit) instantly reactivate the static switch of all the units to take advantage of the overall system capability.

The activation / inhibition of this management function must be available to the user through the display / keypad interface.

    1. Rectifier

The UPS rectifier must be equipped with a load break switch. The rectifier has to be protected by a current limiter and it must be possible to operate the rectifier with an incorrect input phase transposition.


Rectifier bridge technology

IGBT

Rated voltage

400 V - 3 ph (without required neutral)

Voltage tolerance (without the use of batteries)

400V +/-15 %

Frequency range

45 - 65 Hz

Input power factor at full load

(without additional filters)

≥0.99

Input Harmonic distortion (THDi) at full load

(without additional filters)

2.3%

Soft-start current ramping for generator compatibility

(power walk-in)

50 A /sec. in standard

Can be customized from 10 to 1000 A/sec.

Automatic restart delay (input voltage recover)

Can be customized up to 3000 sec. with 1 sec steps

    1. Battery management

The system must insure the battery management following the battery supplier specifications.

A sensor to measure the temperature of the battery shall be provided and connected to the UPS


Charging current

0,1 C10

Floating voltage

Adjusted according to temperature


The UPS will be capable of charging the battery in sustained floating mode and will automatically switch to intermittent charging mode if necessary. The temperature threshold for switching from one mode to the other will be configurable. This function can also be inhibited.

.

    1. Energy storage

The UPS must be able to be connected to a two poles (+/-) energy accumulator which must guarantee a backup life of… minutes at end of life at a load of ... kW.

It will be a sealed lead-acid and maintenance-free battery (VRLA) / AGM technology / sealed lead-acid and maintenance-free battery (VRLA) gel technology / lead-acid unsealed battery / NiCd battery, with a rated life of 10-12 years according to EUROBAT / > 12 years according to EUROBAT at 20°C

Batteries will be supplied and installed in a separate metallic cabinet / on shelves with an acid container / on shelves without an acid container. The battery calculation sheet will be attached to the offer, specifying the rated output power (kW), the inverter efficiency and the voltage at the end of discharge.

The UPS must also be compatible with kinetic energy storage solutions (flywheel).

Please contact us to define a suitable specification

    1. IGBT inverter with integrated isolation transformer

The UPS inverter must use IGBT technology with a DSP control and a high switching frequency in order to support important variation of the output load rate.

The inverter must comply with the following specifications:

Inverter technology

IGBT with integrated isolation transformer

Rated output voltage

3 x 400 V with / without neutral

Rated frequency

50 / 60 Hz

Frequency stability (in back-up mode)

50 / 60 Hz ± 0,2 %

UPS rated apparent power

80 kVA

Permanent active power available at 35 °C

72 kW

Output voltage stability in dynamic conditions for a variation between 0 and 100% and vice versa

Class 1 (VFI-SS-111)

Output voltage stability in static mode between 0 to 100% load

1 % Vn

Total output voltage distortion with a linear load at rated power

THDu (Ph / Ph) ≤ 2 %

Total output voltage distortion - non-linear load

THDu (Ph / Ph) ≤ 3,9 %

Short circuit current capacity while the auxiliary mains is absent

Up to 3.5In during 100 ms

Overload capacity for 10 minutes

80kW

Overload capacity for 60 seconds

96kW


The inverter must be equipped with its own current limiting algorithm, so components are not damaged in case of an output short-circuit.

The UPS must provide a signal making possible to trip the battery protection at the end of the discharge or in case of emergency stop activation.




    1. Automatic static bypass

The bypass ensures the system switches over to the auxiliary source without any interruption in power.

The auxiliary source branch (line) of each UPS module must be equipped with a « Thyristor » static switch sized for a permanent operation at full power. The control logic of the bypass must ensure a no break transfer in case of overload, inverter failure or downstream short circuit. If one of the fans stops, the bypass must continue to be cooled.



Switching time with inverter synchronized to the auxiliary source

No interruption

Overload capability:

  • 1 hour

  • 10 minutes

  • 1 minute


110 %

125 %

150 %

Short circuit capability (without damaging the static switch)

4000 A peak/ 20 ms


For parallel systems, the UPS solution must be available in centralized bypass configuration as well (one by-pass for multiple modules).

Please contact us to define a suitable specification.

    1. Manual maintenance bypass built in the UPS

Pour une ASI unitaire ou redondante (1+1), l’interrupteur du by-pass manuel sera intégré dans la même armoire.

Il sera possible de basculer la charge du by-pass statique vers le by-pass de maintenance, sans interruption.

For single or 1+1 redundant UPS, the manual bypass switch will be fitted in the same cabinet.

It must be possible to switch the load from the bypass static switch to the manual bypass without power interruption, and vice versa.

    1. External maintenance manual bypass

For a parallel or parallel redundant (N+1) UPS, the external manual maintenance bypass switch will be built into an external cabinet and will allow a supply to the load directly by the main source while the rectifier, inverter and by-pass’ static switch are stopped or not active. It must be possible to switch the load from the bypass static switch to the manual bypass without power interruption, and vice versa.

The UPS will allow taking into account the position of an external manual maintenance bypass. This information will be managed by the UPS for safe operation and maintenance activities.

  1. CONSTRUCTION SPECIFICATION

It will be possible to lean the UPS against the wall without any rear clearance requirement:


  1. USER INTERFACE, controls and alarms 

The user interface on the UPS must consist of

A semi graphical black and white interface with the following characteristics:

OR

A touch screen with the following characteristics:


With its dedicated input terminal blocks, the system will be able to manage the following external devices/signals:



It must be possible to configure these protocols via an HTML interface.

The system will provide an alarm synthesis of any faults that could appear on the UPS (general alarm).

It will also have empty slots for additional communication cards to interface with the centralised management system.

As options, following interfaces could be supplied with the UPS or installed later:

Card programming must allow affecting to each output a state or an alarm available inside the system..

  1. FACTORY TESTING AND INSPECTION

The supplier of the equipment must be able to offer factory acceptance tests and in the presence of the customer.

All tests will be carried out with appropriate measuring instruments, their accuracy guaranteed by a certificate of calibration.

Following the positive outcome of the test procedure, the manufacturer shall prepare a certificate listing the tests performed and the results obtained.

  1. COMMISSIONING

After installing the equipment and its power supply, commissioning will be carried out by technicians trained and certified by the UPS manufacturer.

The following steps must be performed on the supplied equipment:


At the end of the commissioning procedure, the technician will need to create a full report on the work undertaken.

  1. MAINTENANCE CONTRACT

The UPS manufacturer must be able to ensure the maintenance of the installed equipment, by means of a maintenance contract. This should be done by technicians trained and certified by the manufacturer of the equipment.

The manufacturer must be able to provide a remote supervision and diagnostic 24/7/365.

1 The tests may be carried out only with the actual system load or a test load provided by the client.

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