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Capability curve
P/S
kW / kVA
0.8
1 0,7 \ 07
0,8 -
0.6 | 0.6
06) o5 ~ . 05
0,4 4
0,2 +
4 ; ais
“4 as kVAr / kVA

Effeciency curve

n [4]

wees =0,9 eeeieioere

96 - Sone Sil peewee peeereyiticostssese
---cosp=0,95 2 ee ee

95 + cosg=1 a en

94 -

93 -

92 -

91 4

90 1 1 1 ' 1 '

0 10 20 30 40 50 60 70 80 90 100 S/Sn [%]

Guaranteed efficiency is the value of weighted or arithmetic average of efficiencies of machine operation at the
capacity utilization by 25, 50, 75, and 100 percent of particular power factor. Guaranteed efficiency is in
accordance with EN 60034 Standard. It shall be agreed by both Parties, whether to apply arithmetic or weighted

average. Adjustments can be made by mutual agreement.

G&Em s.r.o. email: info@gaem.cz

tel: +420 773 338 013

- Vertical, synchronous, 3-phase, air cooled, brushless generator.
- The delivery includes below mentioned:
- Free shaft end could be designed according to your request (max Lde = 600 mm),
but max @ 205 for DE and @ 160 for NDE. Solid shaft.
- The generator is designed with a wound rotor according to the highest industry standards and
safely withstand all overloads and other stresses encountered during rigorous operation.
- The magnetic core, coils, wedges and supports will be impregnated.
- Terminal boxes (main and auxiliary ) placed radially (IP54), 3 outlets + 1 for neutral outlet,
leading down/up on request,
undrilled aluminum plate without cable glands.
- 2x 3 pcs PT100 in the stator winding - - 1 set PT100 in bearings
- 1 pc PT100 for air outlet / 1 pe PT100 for air inlet
- Bearings: grease lubricated antifriction bearings on DE side; oil lubricated antifriction
bearings with oil chamber on NDE side.
Theoretical lifetime 100 000 hours.
- 1 pc of visual oil level meter for oil chamber.
- 1 pc of oil switch for signaling of min. oil level in the bearings.
- Insulated bearing on NDE side, earthing brushes on DE side.
- Anticondensation heating 230 V, 50 Hz, = 600 W
- 3x CT in neutral point, for differential relay
- 1x CT for AVR sensing
- 3x VT for AVR sensing
- Regulator BASLER DECS150 5NS1V + ICRM 07 installed in the terminal box.
Voltage regulation in range +5/-10% is without generator output reduction.
- Speed sensor SELET BO1EG124PO0, 3 impulses/rpm with 2 sensors (disk is included)
- First critical speed > 125% of runaway speed.
= Forces: Fal = 0 kN, Fa2 = OkN, Frs = NAKN, Frd = max 16 kN.
- Damper winding for parallel operation.
- Insulated bearing on NDE side, earthing brushes on DE side.
- Slip ring for rotor earth relay
- Total surface treatment 120 microns. RAL on request (RALSOOS).
- Standards: vibrations acc. to EN 60034-14 ed. 2cl.A noise acc. to EN 60034-9
- Acoustic power according to standard EN60034-9 is 101 dB, Acoustic pressure is approx. 88 dB.
- Spare parts: 1 pc PT100 for bearing, 1 pc Speed sensor SELET BO1EG124PO, 1 set of brushes.
- No generator baseframe, no vibration sensor, no brake!

Documentation (2x printed/2x CD in English language)
Operation and maintenance manuals which include:
Generator data sheet
Technical reports with electrical parameters of delivered equipments
Dimensional drawings, weight and moment of inertia
Determination of generator short-circuit torque
Wiring list and diagram, drawings of main and auxiliary terminal boxes
Workshop test procedures reports and Declaration of Conformity certificate

Testing

G&Em s.r.o. email: info@gaem.cz tel: +420 773 338 013

- The list of tests included in the attached file - Test Specification of SG Series Generators.

G&Em s.r.o. email: info@gaem.cz tel: +420 773 338 013

Type Test of Synchronous Generators of SG Series

Testing according to EN 60034-1 standard

—_

Generator inspection and machine completeness test

Measurement of winding insulation resistances before testing

Measurement of winding resistances

Measurement of resistance of temperature sensors and conirol of built-in accessories

Measurement of voltage symmetry

Phase sequence check and direction of rotation check

No-load characteristic

Interturn insulation test, 130%U, — 3 min

©) OPN) oO) a; sk) oO!) r

Voltage curve form check and THD measurement

=
2°

Short-circuit characteristic by the retardation method

—_
_

Short-circuit resistance at 150%I, — 15s

—
Ne

Load characteristic at overexcited state

—_
o

Calculation of efficiencies from summation of losses at 100%, 75%, 50%, 25% load

—_
a

Determination of moment of inertia

15.

Heat run test by an equivalent test method, at over-excited state as a synchronous
compensator

16.

Measurement of noise level at no-load and load operation

17.

Measurement of no-load vibrations

18.

Mechanical resistance test
- For low-voltage machines: limited to 200 % of the rated speed

- For high-voltage machines: the test will be determined according to technical parameters

of the specific machine

19.

Measurement of winding insulation resistances after testing

20.

High-voltage test

21.

Weight of the generator

G&Em s.r.0.,
Bobrky 2243, 755 01 Vsetin, Czech Republic
Mobile: +420 773 338 013, +420 773 338 023, +420 733 705 842

E-mail: info@gaem.cz

10.

11.

necessary, make an adjustment in the compensation paid to Professional Engineer such that
Professional Engineer receives total compensation in the same amount as it would have
received in the event of a termination-at-will.

C. GENERAL PROVISIONS FOR TERMINATION Upon termination of the contract, the City
of Nashua may take over the work and prosecute it to completion by agreement with
another party or otherwise. In the event Professional Engineer shall cease conducting
business, the City of Nashua shall have the right to solicit applications for employment
from any employee of the Professional Engineer assigned to the performance of the
contract.

Neither party shall be considered in default of the performance of its obligations hereunder
to the extent that performance of such obligations is prevented or delayed by any cause,
existing or future, which is beyond the reasonable control of such party. Delays arising
from the actions or inactions of one or more of Professional Engineer's principals, officers,
employees, agents, subcontractors, consultants, vendors, or suppliers are expressly
recognized to be within Professional Engineer's control.

DISPUTE RESOLUTION _ The parties shall attempt to resolve any dispute related to this
contract as follows. Either party shall provide to the other party, in writing and with full
documentation to verify and substantiate its decision, its stated position concerning the
dispute. No dispute shall be considered submitted and no dispute shall be valid under this
provision unless and until the submitting party has delivered the written statement of its
position and full documentation to the other party. The parties shall then attempt to resolve
the dispute through good faith efforts and negotiation between the City of Nashua
Representative and a Professional Engineer Representative. At all times, Professional
Engineer shall carry on the work under this contract and maintain and complete work in
accordance with the requirements of the contract or determination or direction of the City
of Nashua. If the parties are unable to resolve their dispute as described above within 30
days, if requested in writing by either the City of Nashua or the Professional Engineer
within 14 days after the 30 days described above , the parties shall attempt to resolve the
dispute by entering into structured non-binding negotiations with the assistance of a
mediator on a without prejudice basis. The mediator shall be appointed by agreement of
the parties, which agreement shall not be unreasonably withheld. If the parties cannot agree
to a mediator within 30 days or the dispute cannot be settled within a period of thirty (30)
days with the mediator, the parties’ reserve the right to pursue any available legal and/or
equitable remedies for any breaches of this contract except as that right may be limited by
the terms of this contract.

NO DAMAGES FOR DELAY Apart from a written extension of time, no payment,
compensation, or adjustment of any kind shall be made to Professional Engineer for
damages because of hindrances or delays in the progress of the work from any cause, and
Professional Engineer agrees to accept in full satisfaction of such hindrances and delays
any extension of time that the City of Nashua may provide.

INSURANCE Professional Engineer shall carry and maintain in effect during the
performance of services under this contract:

> General Liability insurance in the amount of $1,000,000 per occurrence;
$2,000,000 aggregate;
> $1,000,000 Combined Single Limit Automobile Liability;

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GENERATORS FOR SMALL HYDRO
POWER PLANTS

G&Em s.r.o. is a dynamically developing company dedicated to the design and manufacture of electric

rotating machines, specialized in generators for small hydro power stations.

We not only have extensive expertise and technical competences, but we also have many years of
experience in the field. We continue to build on this history in the design of generators and electric
motors with more than 40 years already under our belts. In addition to our own R&D, we cooperate

with experts from technical universities and research institutes in finding very special solutions.

Technical qualifications and up-to-date production facilities enable us to fulfill all the customer's wishes

with respect to generator implementation and long-term use.

Thanks to our modular design, we are able to submit binding dimensioned drawings of generators
within 14 working days of signing the contract.

The average delivery time is 6 months.

SYNCHRONOUS GENERATORS ASYNCHRONOUS GENERATORS

Output: 100 (/5,000 kVA 100 111,000 kW

Speed: 150 (11,500 rpm 150 (11,500 rpm

Voltage: 400 [16,600 V 380 (1690 V

Protection: IP21 OIP56

Cooling: air, water (ICO1 ()1IC81W)

Mounting: horizontal, vertical (incl. inclinations from the vertical)

Installation dimensions and free shaft ends according to customer requirements.

Specialized in generators for hydro-electric power plants:

Advanced design
Careful workmanship
High efficiency

Long service life

Reliable operation

Generator design:

Own calculations of electromagnetic circuits and their constant optimization

Mechanical parts with 3D software [| robust for catching the turbine forces

Bearings from first-class manufacturers (roller, slide type

Accessories [| optional according to the project (voltage and cos-phi regulators, temperature
detectors, speed sensors, transformers, filters, protections etc.)

Easy maintenance [| spacious terminal box and easily accessible parts

PRODUCTION FACILITIES

1. Production hall and premises

e Newhall 54 x 18 m with equipment, total production area of 7,200 m?

e Production capacity is 100 machines per year

2. Laser cutting of sheets up to 5 mm thick

Prima Power Platino fiber

3. Stacking of rotors and stators

4, Winding of rotors and stators

6. Own test room with up to 5 MW output
Testing of-horizontal and vertical machines.