APPLIED ACOUSTICS CSP-N Series User manual

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CSPN Capacitor Charging Unit
Operation Manual

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CSPN Capacitor Charging Unit Operation Manual
CSP-CSPN-8000/1
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Revision History
Issue Change
No. Reason for change Date
1 -
CSPN 2400 Changes
Non AAE Sound Source Guidelines added
Maintenance Checklist added
Schematics updated
HVJ3001 diagrams updated
18/08/15

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CSPN Capacitor Charging Unit Operation Manual
CSP-CSPN-8000/1
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Table of Contents
REVISION HISTORY......................................................................................................................................... 2
SECTION 1 - OPERATIONAL .......................................................................................................................... 7
1.1. ENVIRONMENTAL CONSIDERATIONS................................................................................................... 7
1.2. INTRODUCTION........................................................................................................................................ 8
1.3. INSTALLATION ......................................................................................................................................... 9
SITING THE CSP-N........................................................................................................................................... 9
EARTHING...................................................................................................................................................... 10
INSTALLATION................................................................................................................................................. 11
OUTPUT CABLE CONNECTION ......................................................................................................................... 11
LINE VOLTAGE CONNECTION........................................................................................................................... 12
AC POWER REQUIREMENTS ........................................................................................................................... 13
TYPICAL CURRENTS ....................................................................................................................................... 13
POWER UP..................................................................................................................................................... 13
TRIGGER INPUT.............................................................................................................................................. 13
LOCAL /REMOTE............................................................................................................................................ 14
1.4. OPERATION ............................................................................................................................................ 15
ENERGY SETTINGS......................................................................................................................................... 16
OPERATION OF THE CSP-N WITH A BOOMER SOUND SOURCE.......................................................................... 17
LOAD SPECIFICATIONS.................................................................................................................................... 17
BOOMER LOAD............................................................................................................................................... 17
OPERATION OF THE CSP-N WITH A SPARKER SOUND SOURCE......................................................................... 18
OPERATION OF THE CSP-N WITH A NON AAE SOUND SOURCE........................................................................ 18
DUMMY LOAD................................................................................................................................................. 18
1.5. OPERATOR CONTROLS AND INDICATORS........................................................................................ 19
MAINS POWER SWITCH............................................................................................................................... 19
EMERGENCY STOP SWITCH....................................................................................................................... 19
HV OFF/RESET SWITCH .............................................................................................................................. 19
HV ON SWITCH ............................................................................................................................................. 19
MANUAL KEY SWITCH ................................................................................................................................. 19
KEY POLARITY SWITCH............................................................................................................................... 19
LOCAL /REMOTE SWITCH........................................................................................................................... 19
CHARGERATE SWITCH (LOCATED ON REAR PANEL)..................................................................................... 19
1.5.1 INDICATORS ......................................................................................................................................... 20
EOC (END OF CHARGE)INDICATOR............................................................................................................... 20
FAULT INDICATOR......................................................................................................................................... 20
INTERLOCK INDICATOR................................................................................................................................ 20
TIME OUT INDICATOR ................................................................................................................................... 20
HV FAULT INDICATOR................................................................................................................................... 20
LOAD FAULT INDICATOR .............................................................................................................................. 20
1.5.2. CONNECTORS..................................................................................................................................... 21
MAINS INPUT.................................................................................................................................................. 21
REMOTE ........................................................................................................................................................ 21
HV OUTPUT................................................................................................................................................... 21
TRIGGER INPUT.............................................................................................................................................. 21

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CSPN Capacitor Charging Unit Operation Manual
CSP-CSPN-8000/1
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1.6. REAR PANEL .......................................................................................................................................... 21
FUSES ........................................................................................................................................................... 21
CHARGE RATE SWITCH................................................................................................................................... 21
FAN FILTERS.................................................................................................................................................. 21
1.7. PRODUCT RECYCLING / DISPOSAL.................................................................................................... 22
1.8. SPECIFICATIONS.................................................................................................................................... 23
CSP-N SERIES CAPACITOR DISCHARGE POWER SUPPLIES.............................................................................. 23
MODELS AVAILABLE........................................................................................................................................ 23
PHYSICAL SPECIFICATIONS............................................................................................................................. 23
ELECTRICAL SPECIFICATIONS.......................................................................................................................... 23
SAFETY FEATURES......................................................................................................................................... 24
OPTIONS........................................................................................................................................................ 24
SECTION 2 - TROUBLESHOOTING.............................................................................................................. 25
2.1. INTRODUCTION...................................................................................................................................... 25
2.2. CIRCUITS AND DESCRIPTIONS............................................................................................................ 26
SYSTEM OVERVIEW........................................................................................................................................ 26
HIGH VOLTAGE SECTION ................................................................................................................................ 27
HV MONITOR BOARD...................................................................................................................................... 27
HV DETECT BOARD........................................................................................................................................ 27
HV CHARGER ................................................................................................................................................ 27
AC SECTION .................................................................................................................................................. 28
CONTROL BOARD AND FRONT PANEL COMPONENTS........................................................................................ 28
CONTROL BOARD........................................................................................................................................... 29
KEY BOARD ................................................................................................................................................... 29
HIGH VOLTAGE /RELAY SWITCHING................................................................................................................ 29
FAULT LATCHES /HV ON CIRCUIT ................................................................................................................... 30
HIGH VOLTAGE ON CIRCUIT............................................................................................................................ 31
FRONT PANEL BOARD..................................................................................................................................... 31
INTERLOCKS /RELAY BOARD .......................................................................................................................... 32
2.3. REPAIR AND FAULT FINDING ON CSP POWER SUPPLIES.............................................................. 33
2.4. CSP-N BASIC FAULT DIAGNOSIS........................................................................................................ 34
2.5. TROUBLESHOOTING GUIDE................................................................................................................ 36
2.6. MAINTENANCE CHECK LIST ................................................................................................................ 39
SECTION 3 – CIRCUIT AND BLOCK DIAGRAMS........................................................................................ 40
3.1. INTRODUCTION...................................................................................................................................... 40
CIRCUIT AND BLOCK DIAGRAMS INDEX ............................................................................................................ 40
SECTION 4 – SYSTEM INTERCONNECTION............................................................................................... 60
HVJ3001 HVJUNCTION BOX ......................................................................................................................... 60
4.1. TRIPLE ARRAY ARRANGEMENT.......................................................................................................... 60
400 TIPS DURASPARK 400 // 240 TIPS DURASPARK 240 // 3BOOMER PLATE S-BOOM..................................... 60
4.2. DOUBLE ARRAY ARRANGEMENT....................................................................................................... 61
240 TIPS DURASPARK 400 // 160 TIPS DURASPARK 240 // 2BOOMER PLATE S-BOOM..................................... 61
4.3. SINGLE ARRAY ARRANGEMENT......................................................................................................... 61
80 TIPS DURASPARK 400 AND 240 // SINGLE BOOMER PLATE S-BOOM............................................................ 61

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CSPN Capacitor Charging Unit Operation Manual
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4.4. HVJ3001 INTERCONNECTIONS............................................................................................................ 62
4.5. HVJ3001 JUNCTION BOX INTERLOCK WIRING.................................................................................. 62
Thank you for choosing Applied Acoustic Engineering as one of your subsea equipment suppliers.
We hope you experience many years of reliable operational use from our products.
If you do encounter any technical issues with any of our products then please don’t hesitate to
contact our Technical Team via the following methods.
Tel: [phone]
Fax: [phone]
Email: [email protected]
Applied Acoustic Engineering Ltd has made every effort to ensure that the information contained in this
manual is correct at time of print. However our policy of continual product improvement means that we
cannot assume liability for any errors which may occur.
These written instructions must be followed fully for reliable and safe operation of the equipment that
this manual refers to. Applied Acoustic Engineering Ltd cannot be held responsible for any issues
arising from the improper use or maintenance of equipment referred to in this manual or failure of the
operator to adhere to the instructions laid out in this manual. The user must be familiar with the
contents of this manual before use or operation.

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CSPN Capacitor Charging Unit Operation Manual
CSP-CSPN-8000/1
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WARNING
Information in this manual is copyright 1993 – 2015, Applied Acoustic Engineering Ltd.
This manual is loaned without other consideration than the agreement and condition that it is not
to be reproduced, copied or otherwise disposed of directly, and is not to be used in whole or in
part to assist in or to furnish any information for the making of drawings, prints, apparatus or parts
thereof.
THIS EQUIPMENT CONTAINS LETHAL VOLTAGES,AND MUST
BE EARTHED AT ALL TIMES.
ENSURE ADEQUATE SAFETY PROCEDURES ARE EMPLOYED.

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CSPN Capacitor Charging Unit Operation Manual
CSP-CSPN-8000/1
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Section 1 - OPERATIONAL
1.1. Environmental Considerations
Seismic Sound Sources and Marine Life
Although not proven, there is concern in some quarters that marine mammals may be harmed or
their behaviour changed by seismic activity. The sound pulses from sparkers and boomers is much
lower in amplitude and higher in frequency (so it will travel less far) than air guns. However it
makes sense that a precautionary approach to emitting sounds in the whales and dolphins’ natural
habitat should be observed.
The CSP energy sources described in this manual have the ability to “soft-start” and increase the
energy emitted in the water slowly over time and this technique will give any marine mammals
nearby the opportunity to escape before maximum signal amplitude is reached. It will also give
them a chance to get used to the noise if they choose to stay (!) rather than being subjected to a
sudden shock of a full power seismic signal.
The procedure is quite simple:-
By using a slow repetition rate – say at 1 pulse per 15 seconds and by using the “Auto” charge
rate, the energy will slowly increase over the course of several minutes. Once full power has been
achieved, the repetition rate can then be slowly increased until the rate desired for the survey has
been achieved.
Another factor to consider is to ensure that the start of any survey line is not in such a location that
any cetacean is trapped by the vessel and the noise, for example in a small harbour. In such an
instance, the survey should start in such a place that any cetacean in the vicinity has a clear and
rapid means of escape into open water and away from any unnatural noise source. Further details
and advice can be obtained from the following web site:-
http://www.jncc.gov.uk/pdf/Seismic_survey_guidelines_200404.pdf. This web site refers to UK
waters and relates to air guns as the sound source (in many ways different to a sparker or
boomer), but should serve as a useful guide nonetheless.

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CSPN Capacitor Charging Unit Operation Manual
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1.2. Introduction
The CSP-N is an evolution of the CSP-D range of seismic power supplies. The CSP-N has a high
voltage charger rated at 2000 joules per second, and can supply up to 1200 or 2400 joules of
energy per shot into the seismic sound source for example Dura-Spark. The CSP-N allows the
user to select HI and LO power levels this can effectively tune the source to a lower frequency
response.
The CSP-N incorporates many common parts to the CSP-D, -P, -S range of power supplies and
apart from utilizing negative High Voltage can be considered essentially as the same. All units
feature a switchable soft start ‘power save’ circuit; AVIP (Automatic Variable Input Power) which
allows the units to be operated from reduced generator sizes when operating at low output
powers:-
Traditional high voltage power supplies (bang boxes) will charge the energy storage capacitors at a
fixed high rate for example at 1500J per second even when the average energy drawn from the
capacitors is less; a typical example may be 100 J at 3 pps (300J). This results in a rapid capacitor
charge rate for 67 mS followed by nothing, until the next discharge / charge cycle. This charge / no
charge operation can often result in generator hunting as the load changes, and may mean that a
larger generator is needed than would be the case if the power requirement was averaged over
time. By reducing the peak charge rate, the generator hunting is all but eliminated, and a smaller
capacity generator is required. The AVIP circuitry will automatically adjust charge rate from 20% to
100% of specification, thus lowering the peak charge rate to just 300 J / second compared to
bursts of 1500J/second. The circuitry also features a soft start function, which may take around 20
seconds before the charge rate is ramped up to the correct amount for the task in hand.
The CSP-N allows the user to effectively ‘tune’ the sound source to operate at a lower frequency
by lowering the operating voltage and increasing the capacitance to supply the correct energy to
the sound source. This may be effective in certain instances where more penetration is required.
The CSP-Ns monitor the output of the system for open circuit fault conditions and over current fault
conditions, limited to approx. 9000A.

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CSPN Capacitor Charging Unit Operation Manual
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1.3. Installation
Siting the CSP-N
The CSP-N deliver high energy, high voltage pulses, yet still emit minimal electrical emissions, and
so can carry the CE mark.
The CE marking ensure that the CSP-N can be sited next to sensitive electronic equipment which
carry their own CE marking (for susceptibility to emissions) and will be unlikely to cause them
interference. However it is often more convenient to locate the CSP-N nearer to the back deck and
the deployment area so that the high voltage ‘output’ cable run is minimised.
As high voltages are present, the CSP-N must be located away from water spray and
condensation, in an environment which is not allowed to become too hot. Care should be taken to
allow safe and easy access, and that high voltage cables are out of harm’s way. It should also be
possible to switch off the unit quickly without having to reach over it!
Ventilation should also be present. All units draw air in from the rear and exhaust air from the front.
For operation in high ambient temperatures, the rear cover of the transit case should be removed
to allow a good air flow.
If condensation is allowed to develop serious damage may occur. Good room ventilation should be
ensured, with no sudden change in temperature (i.e. bringing the unit into a warm room from a cold
area) and allow the fans to operate for 10 - 15 minutes before switching on the high voltage.

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CSPN Capacitor Charging Unit Operation Manual
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Earthing
The CSP-N MUST be earthed. The M8 earth bolt on the front panel should be connected to the
vessel earth by a heavy gauge wire or cable. On larger ships, earth is usually a steel bulkhead, but
for smaller fibre glass / wooden vessels a sea earth is necessary. A sea earth can be constructed
from a 25 mm2 or larger copper cable with 1 – 2 metres of insulation stripped off with all the
exposed copper conductor in the water. A weight will be required to ensure that the sea earth cable
is in the water at all times during towing activity even during heavy roll.
It is recommended that earthing arrangements are checked regularly as corrosion or abrasion (or
metal cutting gear!) can cause damage which may result in the equipment becoming unsafe from
having an ineffective earth.
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The CSP-N range of Capacitor Discharge PSUs are compact and easy to operate. However, the
units still generate lethal voltages, and the operators should make themselves aware of all
necessary safety procedures. The equipment is designed so that there is no need for the operator
to go inside for anything, except major repairs. We cannot be liable for any consequences should
the units be opened. Health and Safety guidelines and our own Safety Policy strongly suggest that
factory training is received before opening the top cover.
This manual is supplied in three parts:
Section 1 Basic operation information details.
Section 2 For manufacturer trained technicians only
and provides troubleshooting advice,
schematics and circuit descriptions.
Section 3 Provides block and circuit diagrams.