Greatwatt Energy S-700 Owner's Manual

Wind Generator

S-700

Owner's Manual

Version 1.0

Serial Number:

Inner Controller

NOTICES:

This manual contains all necessary information for assembling, testing, operating,
and maintaining this Wind Generator. Please read it carefully and retain it for future
reference.

We have made every effort to ensure that the information presented in this manual is
accurate but assumes no responsibility for any errors or omissions. Users of this
information and products assume full responsibility and risk.

All specifications are subject to change without notice.

Wind Generators, like other sources of electrical power, must be installed following
the guidelines established by state and local regulations. Consult a local electrical
contractor or the local planning and zoning office for details and regulations.

For your convenience and protection write the serial number of your Wind Generator
on the front of this manual. Store your purchase invoice with this manual as well.
You will need this information in the event of a warranty claim. It also helps our
customer service department when you have questions about your Wind Generator.

Thank you.

Manufactured in CHINA by:

GREATWATT ENERGY, LTD.,

Suzhou, China.

Web: www.greatwatt.com

Greatwatt, GT, S-600, S-700, S-800 and Wind Module

are trademarks of Greatwatt Energy, Ltd.,

©2012 Greatwatt Energy

Important Features of S-700

AERODYNAMICS & ELECTRONICS & TELEVISION

Smallest and Most Powerful: With the highly efficient blades, controller and alternator,

S-700 can provide the maximum output power in the world at the same size, weight
and rotor diameter.

Whole Protection: S-700 provide the best protection, for example, the voltage
auto-brake, slow down in strong wind (Hysteresis Braking), shut down completely
in cyclone, battery charge protect, smart protect, overtemperature protect, and so on.

Over-speed Protection: To fully “utilize” wind power, the blades will not be braked
in the speed from 0m/s to 20m/s. Once the Wind Generator “sense” the wind speed
higher than 20m/s, it will shut down completely and stop charging.

Constant Current Charge: In the same wind speed condition, when the battery is
becoming fuller and fuller, the charging current of the common wind generator will
be less and less, but S-700 can always keep steady charging current, so it can fully
make use of the wind energy, and, at the same time, it can also effectively protect
your battery!

MATERIAL

CFRP Blades: The rotor blades are made of CFRP, and manufactured by precise

injection process, so S-700 has the rigidest, the best electric and the minimal
vibrant blades.

Magnalium Frameworks: All frameworks are made of magnalium, just as the body,
the face, the hub, the yaw shaft, etc. This material is very anticorrosive and very hard.

ACCESSORIES

Stop Switch: We provide a stop switch (50 amps D.C.), which can be used to “stop”

the Wind Generator for service or any other reason. You will find it very useful and
necessary.

Plastic Disk: The static electricity generated from blades rotating will corrode the
hub, especially used in the sea. We provide some plastic disks to protect the
hub from corrosion.

Page 1

http://www.greatwatt.com

3
3
3

3

4

5
5
6
6
6

8

9

10

10
11

15
15
15
16

17

18

Table of Contents

1.

1.1 Mechanical Hazards

1.2 Electrical Shock Hazards

2. PACKAGE CONTENTS

3. EXPLODED VIEW

4. Electrical System

4.1 System Wiring Diagrams

4.2 Over-speed Protection

4.3 Stop Switch

4.4 Grounding

4.5 Operation Conditions

5. Siting

6. Tower

7. Installation Instructions

7.1 Required Tools

7.2 Pre-Check

7.3 Installation Operation

8. Trouble Shooting

8.1 Mechanical System

8.2 Electrical System

8.3 Elevation

9. Maintenance

10. Warranty Card

SAFETY PRECAUTIONS

10

7

Page 2

http://www.greatwatt.com

Page 3

1. SAFETY PRECAUTIONS

Safety must be the primary concern as you plan the location, installation and operation
of the Wind Generator. There are inherent dangers involved with any electrical and/or
mechanical equipment.

1.1 MECHANICAL HAZARD

Do not approach the machine while the blades are spinning-they can cause serious
injury!

CAUTION: DO NOT INSTALL THE WIND GENERATOR WHERE ANYONE CAN
APPROACH THE PATH OF THE BLADES.

1.2 ELECTRICAL SHOCK HAZARD

The Wind Generator can produce higher than nominal voltages when running open
circuit. Keep the output wires shorted initially and carefully follow the installation
instructions.

2. PACKAGE CONTENTS

Compare the parts shown in the following figure to ensure that the contents of the box
contain all necessary parts.

4mm Hex Key

5mm Hex Key

8mm Hex Key

Rotor Blades ( 3 )

M6-25 Socket Head Cap Screw ( 6 )

M6 Nut ( 6 )

Stop Switch

Owner's

Manual

Nose
Cone

Hub

Alternator Shaft

Main Body

Yaw
Shaft

LED

Plastic Disk ( 6 )

http://www.greatwatt.com

Page 4

3. EXPLODED VIEW

Hub

M6-25

Blades(3)

M6

Face

Face Bearing

-Outer

Face Bearing

-Inner

Gasket

4mm

M5-45

Face

O-Ring

Stator

Rotor

Brushes

Controller

LED

Body Snap Ring

Body Bearing

Body

M6-60 Screw(1)

Slip Ring

Yaw Snap Ring

Yaw Body

Yaw Clamp

Rubber

Pad

M5-35

Screw (4)

M5

Nut (4)

Gasket

5.5mm

Nose

M16

Plastic

Rubber

Gasket

Disk (6)

Snap Ring

Cone

Screw (6)

Screw (3)

NUT

Nut (6)

http://www.greatwatt.com

Grounding

cable

Page 5

4. ELECTRICAL SYSTEM

4.1 SYSTEM WIRING DIAGRAMS

Higher input voltages from additional Wind Generators, solar panels, fuel-powered generators
etc., can trick the Wind Generator's controller into sensing the battery in full charge, and the
controller will prematurely stop charging. It will not harm the Wind Generator, just cause to
slow down or stop spin. Please disconnect the other charging sources to determine the
possible interference source.

You can wire the Wind Generator through most “power centers”. However, if you experience
interference, you must bypass it and wire the Wind Generator directly to the battery bank to
its own set of battery posts. Allow the Wind Generator to operate independently, monitor the
battery and charge is necessary.

CAUTION: DO NOT CONNECT WIND GENERATOR POSITIVE TO BATTERY NEGATIVE
AND WIND GENERATOR NEGATIVE TO BATTERY POSITIVE FOR EVEN A SECOND,
OR ELSE WILL DAMAGE THE WIND GENERATOR'S CONTROLLER AND VOID YOUR
WARRANTY. (IF YOU ARE UNCERTAIN OF THE POLARITY OF THE WIRES, SIMPLY SPIN
THE ROTOR SHAFT AND MEASURE THE VOLTAGE DIRECTION WITH A VOLT METER).

NOTE: One bad battery can create high voltages (16-18 volts) and stop the Wind
Generator from charging, check the condition of each individual battery.
Consult the battery manufacturer for testing individual batteries or cells.

Wind Generator

Amp Meter

Stop Switch

Tower

Tower Ground

Turbine Negative (Black Lead)

Red Lead

Turbine Positive

Earth Ground

Battery Bank

Ground Rod

http://www.greatwatt.com