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Technical Specification
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Upphandling av GPU:er
TECHNICAL SPECIFICATION
GROUND POWER UNITS
1
SCOPE
The scope of the delivery is both stationary and trailer mounted (mobile), ground
power units for use at airports. The GPUs shall be built with solid state
technology.
The GPUs include the following categories:
•
•
•
400Hz/115V, 60 and 90 kVA
28 V DC
Combi 28 V DC + 400Hz, 60 and 90 kVA
All GPUs shall be delivered ready for installation and taking into operation.
Final adjustment after installation shall be made by the tender.
2
STANDARDS
The following standards shall be fulfilled:
•
ISO 6858 Aircraft ground support electrical supplies – General equipment
•
EN 2282 Aerospace series Characteristics of aircraft electrical supplies
•
US Military standards Mil-std 704 E, Aircraft electrical power
characteristics
•
DFS 400 Euro Standard 400 Hz
•
IEC 60721 Classification of degrees of protection provided
•
EN 61000-6-2 Electromagnetic compatibility, generic immunity standard
•
EN 61000-6-4 Electromagnetic compatibility, generic emission standard
3
400 HZ GPUS
3.1
Stockholm-Arlanda gate housings
To fit into the gate support housings at Stockholm-Arlanda the stationary GPUs
shall not have a height exceeding 170 cm and a width exceeding 80 cm. The
weight shall not exceed 350 kg
Ventilation needs for the GPUs shall be specified.
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Göteborg-Landvetter weather requirements
In Landvetter GPU: s are placed out on the fields where weather conditions are
harder. Humidity, wind and coldness are factors that have to be considered when
offering high quality products to Swedavia.
The unit shall be able to stand outdoor in the Nordic climate with respect to wind,
moisture, temperature and precipitation both in operating and non-operating
mode without effect to the operation.
3.2
Output
Power
Voltage
Frequency
3.3
60 kVA or 90 kVA, cos  = 0,8
115/200 V, 3 phase. (Aircraft connected)
400 Hz
Overload rating
120% load for 5 minutes
150% load for min 10 seconds
180% load for min 5 seconds
3.4
Input
Voltage
Frequency
3.5
400/230V +10/-15 %
50 Hz +/- 10 %
Supervision, error log
A processor based equipment and a display, or similar function, shall be installed.
The equipment shall log operational status and electrical values and show them on
the display.
The equipment shall be prepared for connection to local network for remote
surveillance. It shall be possible to log the following parameters.
 Operating time.
 Electricity consumption.
 Timestamp for start and stop.
 Operating temperature.
The unit shall also be equipped with a “self diagnostic system” where it is
possible to log errors.
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4
28VDC GPUS
4.1
Output:
28VDC 600A 16,8KVA
4.2
Overload rating
The GPU shall as a minimum deliver sufficient
overload to start aircraft types Saab340, ATR 72,
Dornier 328, Jetstream 31. The tender shall include
confirmation of this and data values of what overload
ratings are supplied by the GPU.
4.3
Input:
Voltage
Frequency
4.4
400/230V +10/-15 %
50 Hz +/- 10 %
Supervision, error log
A processor based equipment and a display, or similar function, shall be installed.
The equipment shall log operational status and electrical values and show them on
the display.
The equipment shall be prepared for connection to local network for remote
surveillance. It shall be possible to log the following parameters.
 Operating time.
 Electricity consumption.
 Timestamp for start and stop.
 Operating temperature.
The unit shall also be equipped with a “self diagnostic system” where it is
possible to log errors.
COMBI GPUS (28VDC + 400HZ)
4.5
Output
400Hz
Power
Voltage
Frequency
60 kVA or 90 kVA, cos  = 0,8
115/200 V, 3 phase. (Aircraft connected)
400 Hz
28V DC
28VDC 600A 16,8KVA
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4.6
Overload rating
400Hz part
120% load for 5 minutes
150% load for min 10 seconds
180% load for min 5 seconds
28V DC part
The GPU shall as a minimum deliver sufficient
overload to start aircraft types Saab340, ATR 72,
Dornier 328, Jetstream 31. The tender shall include
confirmation of this and data values of what overload
ratings are supplied by the GPU.
4.7
Input
Voltage
Frequency
4.8
400/230V +10/-15 %
50 Hz +/- 10 %
Supervision, error log
A processor based equipment and a display, or similar function, shall be installed.
The equipment shall log operational status and electrical values and show them on
the display.
The equipment shall be prepared for connection to local network for remote
surveillance. It shall be possible to log the following parameters.
 Operating time.
 Electricity consumption.
 Timestamp for start and stop.
 Operating temperature.
The unit shall also be equipped with a “self diagnostic system” where it is
possible to log errors.
The unit shall also be equipped with a “self diagnostic system” where it is
possible to log errors.
5
GENERAL REQUIREMENTS
The general requirements are valid and shall be fulfilled for all three types of
GPUs unless otherwise stated.
5.1
Protections
Protective devices for the following parameters shall be installed:
•
Input over- and under voltage
•
Input overload
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•
Output over- and under voltage
•
Output overload
•
Short circuit at output
•
Internal voltage error
•
Internal high temperature
When an error in pilot voltage occur conduction to ground shall not be made.
5.2
Technical design
The units are intended for outdoor use and shall be built up in a corrosion
resistant way. Outside fitted, visible and unpainted steel and aluminium parts
shall be protected with anticorrosion medium, e.g. tectyl, dinitrol or equal.
The units shall be designed for use in a surrounding temperature of
–35 to +50 C and the electrical degree of protection shall as a minimum be IP54.
Not to overheat the unit a heat controlled cooling fan, or similar solution, shall be
installed.
The unit shall be able to stand outdoor in the Nordic climate with respect to wind,
moisture, temperature and precipitation both in operating and non-operating
mode without effect to the operation.
Noise level shall be kept as low as possible and shall as a minimum not exceed 60
dB(A) at a distance of 1 m from the GPU.
Emergency stops of “mushroom type” or similar shall be provided.
Mobile units shall be built on a sturdy towable frame. The towing speed shall be
at least 30 km/h and the tow bar shall in upright position activate the parking
brake. To maximize mobility the wheels shall be designed in rubber with ball
bearings or similar. The weight shall not exceed 500 kg.
The GPU shall as far as possible be built such that components are easily
accessible for maintenance and service. If special tools are required this shall be
specified.
5.3
50 Hz output
230V AC, 10A and 400V AC, 16A
50Hz outputs shall be available as an option. These outputs shall be fitted with an
earth fault protection, breaking level at 30 mA.
5.4
Painting
The Tenderer shall describe what standard colours the GPUs are delivered in.
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As an option, it shall be possible to order the GPUs painted in airport yellow,
RAL codes typically used are 1003, 1013 or 1021. Added delivery time, if any,
shall be given separately for painting.
5.5
Factory test
The GPUs shall be tested at the factory prior to shipping. Factory test
documentation shall be delivered with each respective GPU.
5.6
Documentation
To all delivered units the following documentation shall be included:
•
•
•
•
Operator's manual: two copies in language Swedish and English
Spare part catalogue, two per GPU.
Circuit diagrams covering all circuits and modules
Diagram of connections
The above should preferably also be delivered in electronic format.
5.7
Markings
The GPUs shall be marked in accordance with the European CE-standard. ECdeclaration of conformity shall accompany every delivered unit.
6
CABLES
The tenderer shall provide specifications of offered cable types.
Below are typically requested lengths. Offered cables shall be compliant with
commonly occurring aircraft. Start and stop of the operation shall not be placed
on the aircraft cable connection
The tenderer may (preferably in the Price sheet) provide other standard lengths
and cable types with pricing.
400Hz
Primary cable (input) 20m not with Euro standard 5 pins connector.
Secondary cable (output) 20m (or 25m) (55m) complete with aircraft-connector.
28V DC
Primary cable (input) 20m.
Secondary cable (output) 15m (or 20m) complete with aircraft-connector.
Combi
As 400Hz and 28V DC above.
For mobile GPUs, the cables (primary 15m, secondary 15 m) shall be possible to
store on the GPU in a separate sheet steel compartment or similar.
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As an option, to protect secondary output cables, it shall be possible to order cable
protection (flexible hose or similar). To prevent from condensation causing flash
over, the protection shall be ventilated.
7
SPARE PARTS
The tenderer shall describe what service level will be available to SWEDAVIA in
regards to spare parts during and after the warranty period. As a minimum spare
parts shall be available at each respective SWEDAVIA airport within 24 hours of
SWEDAVIAs warranty notification or order of new parts.
Spare parts and spare parts handling covered by warranty shall be included in the
GPU pricing.
The spare part handling should contain a routine for exchange of parts.
Spare part should be delivered within 7 working days.
The tenderer shall guarantee availability of spare parts for 10 years after each
respective GPU delivery. Tenderer should guarantee availability of spare parts for
15 years.
The tenderer shall as an option suggest and price a basic first line spare parts kit
for each GPU.
8
SERVICE AND MAINTENANCE
Each SWEDAVIA airport may have differing levels of need of service from an
external service provider.
Common to all airports is that to minimize the downtime of the GPUs
SWEDAVIA prefers if the maintenance and the service after warranty, as far as
possible can be performed by SWEDAVIAs technical service personnel at each
respective airport.
The tenderer shall have an established service organisation or authorised service
supplier for the offered products.
The tender shall have representation in at least one of the Nordic countries.
8.1
Service during warranty period
The tenderer shall describe how warranty repairs are handled, with the aim of
minimizing GPU downtimes.
Warranty repairs which require onsite assistance from the supplier shall at the
latest be initiated within 48 hours of SWEDAVIAs error report.
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8.2
Service after warranty period
After the warranty period it shall be possible for SWEDAVIA to send units to the
supplier for yearly preventative maintenance, inspection and/or corrective
maintenance; and/or request onsite support.
The tenderer shall suggest an option for yearly preventative service after the
warranty period, on a per-airport basis.
8.3
GPU maintenance needs
The tender shall include a list of brief recommended recurring maintenance needs
of the GPUs during a life cycle of 15 years after commissioning. This should
include the periodicity of each maintenance need.
The tender shall provide with software upgrade.
9
SUPPORT
Support for SWEDAVIAs first line maintenance questions during office hours
shall be available at no additional cost via telephone and email.
10
EDUCATION
The tender shall include a suggestion for an optional education to users and
maintenance personnel. The education shall include a theoretical and practical
walkthrough of the unit. The education shall be kept at the customer’s site when
the GPU is put into operation, and shall be structured in accordance with valid
documentation and be held in Swedish.
The education shall be held at one of Swedavia airports’.