Ponovo PAV250Bip User manual

PAV250BIP Power Amplifier User Manual
1
PONOVO POWER CO., LTD
No. 139 Jinghai Third Road, BDA, Beijing, China, 100176
Office
TEL. [phone]
E-Mail
[e-mail]
Website
www.relaytest.com / www.ponovo.com.cn
PAV250Bip
POWER AMPLIFIER USER MANUAL
VERSION: PAV250Bip-AE-1.30
DATE: FEB., 2018
This manual is the publication of PONOVO POWER CO.,LTD.Any form of copy should
obtain the consent of it.
The manual represents the technology status at publication time. The product information,
directions and all technical specifications do not have contract binding. The company
subjects to changing the technical and configuration information without notice. The
company is not responsible for possible errors occurred in the manual.

PAV250BIP Power Amplifier User Manual
2
Content
1.Safety Precaution.................................................................................................................3
2.General Description.............................................................................................................9
3.Main Technical Specifications............................................................................................10
2.1 Power Supply...........................................................................................................10
2.2 Environment Conditions...........................................................................................10
2.3 Dimension and Weight.............................................................................................11
2.4 Technical Specifications...........................................................................................11
4.Functions and Features.....................................................................................................12
4.1 Basic Principle..........................................................................................................12
4.2 Functions and Features...........................................................................................12
5.How to Use Amplifier .........................................................................................................18
5.1 Wiring.......................................................................................................................18
5.2 Running....................................................................................................................18
5.3 Voltage Output.........................................................................................................18
5.4 Amplifier Off..............................................................................................................19
5.5 Amplifier Test Items .................................................................................................19
6.Standard Accessories........................................................................................................20
6.1 Soft Bag for Test Leads...........................................................................................20
6.2 Transportation Case.................................................................................................23
7.Parameter definition...........................................................................................................24

PAV250BIP Power Amplifier User Manual
3
1.Safety Precaution
Read User Manual before operation.
1. Check carefully all buttons are positioned correctly before startup.
1) Pause button in correct position in pressed state.
2) ON/OFF in OFF state.
3) Not press high power button (High power indicator in OFF state)
2. Main supply capacity should meet the requirement; otherwise it will affect output power
of amplifier during high current output.
3. Handle the amplifier with great care and follow the symbols on the package: fragile,
handle with care, top (an arrow pointing up), keep dry and protect from shaking.
4. Generally it’s not necessary to depress high power button (high power button light
should be off also).
5. Never operate live signal and load wires with voltage or current output to protect the
safety of equipment and personnel.
6. In case the power outlet for powering up the amplifier does not have protective
ground customer must connect the ground socket to the protective ground at the
test site
7. The voltage output of over 36V is considered as dangerous and care must be
taken
8. It’s not allowed to feed external voltage into the voltage/current output sockets
9. It’s not allowed to feed external current into the current/voltage output sockets
10. Disconnect the external circuit from the relay to avoid any influence to the test
11. Do not block the ventilation outlets

PAV250BIP Power Amplifier User Manual
4
12. Avoid the equipment to be wet by rain
13. Do not switch-on and operate the equipment in the place having explosive gas or
water vapor.
14. The 500V dangerous voltage can be in the equipment and please don’t remove
the cover by yourself
15. Please contact the manufacture for any maintenance
16. The guarantee will become invalid if kit is opened by the customer

PAV250BIP Power Amplifier User Manual
5
For Your Safety Please Note
This symbol indicates potential hazards by electrical voltages/currents caused by, for
example, wrong connections, short-circuits, technically inadequate or faulty equipment or by
disregarding the safety notes of the following sections.
Use Proper Power Cord
Only the power cord designed for the instrument and authorized by local country could be
used.
Ground The Instrument
The instrument is grounded through the Protective Earth lead of the power cord. To avoid
electric shock, it is essential to connect the earth terminal of power cord to the Protective
Earth terminal before any inputs or outputs.
Observe All Terminal Ratings
To avoid fire or shock hazard, observe all ratings and markers on the instrument and check
your manual for more information about ratings before connecting.
Do not Assemble/Disassemble the Instrument without
Authorization
The instrument should be assembled and or disassembled by professional engineers; users
are not allowed to perform related operations except for some possible replacements in this

PAV250BIP Power Amplifier User Manual
6
manual.
Do not Move or Maintain the Instrument When it is Powered On
To avoid personnel injuries, any position adjustment, maintenance or parts replacement are
forbidden when instrument is on.
Use Proper Fuse
Please use the specified fuses.
Do Not Operate With Suspected Failures
If you suspect damage occurs to the instrument, have it inspected by qualified service
personnel before further operations. Any maintenance, adjustment or replacement
especially to circuits or accessories must be performed by authorized personnel.
Keep Well Ventilation
Inadequate ventilation may cause increasing of temperature or damages to the device. So
please keep well ventilated and inspect the intake and fan regularly.
Do Not Operate in Wet Conditions
In order to avoid short circuiting to the interior of the device or electric shock, please do not
operate in a humid environment.

PAV250BIP Power Amplifier User Manual
7
Do Not Operate in an Explosive Atmosphere
In order to avoid damages to the device or personal injuries, it is important to operate the
device away from an explosive atmosphere.
Keep Product Surfaces Clean and Dry
To avoid the influence of dust and/or moisture in air, please keep the surface of device clean
and dry.
Operate the Instrument in a Suitable Environment
The best condition for optimal measurement is: 5 ℃to 40℃; less than 2 ℃/hour changing,
20% to 80% RH and the instrument should not be placed towards the air outlet.
Electrostatic Prevention
Operate in an electrostatic discharge protective area environment to avoid damages
induced by static discharges.Always ground both the internal and external conductors of the
cable to release static before connecting.
Proper Use of Solvent
Please use the solvent in compliance with instructions specified in its supplier. If necessary,
wear protective clothing, gloves and glasses to avoid any injuries.

PAV250BIP Power Amplifier User Manual
8
Handling Safety
Please handle with care during transporting to avoid damages to surface, panel and parts
resulting from the falling from your hand.
NOTE: This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be required to correct
the interference at his own expense.

PAV250BIP Power Amplifier User Manual
9
2.General Description
The power amplifier for digital simulator in power system is required to have high linearity,
quick response, be available to all kinds of capacitive, inductive and resistive loads.
Generally power amplifier consists of two types of amplifiers: linear power amplifier and
switching power amplifier. The linear power amplifier has the strengths of high linearity,
quick response, high accuracy, good electromagnetic compatibility and the weakness of bad
performance in high current and high power cases. The switching power amplifier is quite fit
in high current, high power devices with its strength of high efficiency, but it’s weak in
linearity, small signal noise, DC offset, drift, transient response, load driving capability
aspects, which are very difficult to fix.
PAV250Bip is specially designed for R&D of power system simulation. It is adapt to various
capacitive and inductive load. There are 6-phase voltage outputs with max. 250VRms per
phase and max. output power 75VA..

PAV250BIP Power Amplifier User Manual
10
3.Main Technical Specifications
2.1 Power Supply
Power supply
Single phase 110/220V AC
Max Current: 15A
Frequency: 50/60Hz
Power capacity
750VA
2.2 Environment Conditions
Operating temperature 25°C±10°C
Storage temperature -25-+70°C
Related humidity: 20%RH—85%RH
Pressure: 86 kPa—106kPa
EMC (Emission) IEC-61000-3-2/3
EMC (immunity) IEC-61000-4-2/3/4/5/6/11
Safety IEC/EN 61010-1:2010
UL 61010-1:2012
CAN/CSA-C22.2 No. 61010-1-12
Surrounding conditions: No dust, vibration or serious electromagnetic field interferes.
The equipment is not recommended to be used out of laboratory.
Avoid the equipment to be used online out of laboratory in severe environment.

PAV250BIP Power Amplifier User Manual
11
2.3 Dimension and Weight
3U standard chassis H×W×D(mm): 364×155.5×415
Weight:15kg
2.4 Technical Specifications
Voltage output 6 X 0~250V RMS
Max. output power >75VA(250V output)
Input signal 0~5V RMS(±7.07/16Vpek)
Voltage accuracy <0.2%(5V-250V)
Voltage typical accuracy <0.1%
Differential input impedance 20k
Gain 50V/V
Harmonic distortion ratio ≤0.1%
Linearity ≤0.2%
Phase accuracy 0.2°
Frequency range DC-3kHz±1dB
Step response <80us
Input/output delay <80us

PAV250BIP Power Amplifier User Manual
12
4.Functions and Features
4.1 Basic Principle
PAV250Bip consists of the below parts mainly:
a) High-speed differential input circuit for amplifier;
b) Voltage power amplifier module;
c) Detection and alarm circuit: each amplifier has an output distortion detection circuit.
d) Temperature protection circuit: Turn off the amplifier when the temperature is too
high; It will resume working when it is cooled down to a reasonable degree.
e) Cooling fan: when the temperature is quite low, the fan will work at a low speed for
prolonging the fan’s life-span and reducing working noise.
4.2 Functions and Features
4.2.1 Differential input circuit
The differential input circuit can reduce the influence of the common mode noise to make it
possible that use long wires to connect across the amplifier and signal source, which will
reduce mutual effects between all amplifiers during output to guarantee the operation safety
of the simulator.

PAV250BIP Power Amplifier User Manual
13
4.2.2 Over-load alarm function
The output voltage distortion and overload auto-detection circuit will protect the voltage
amplifier output overload or short-circuit automatically. It automatically closes amplifier
input/output, and the overload alarm in rear panel lights. After overload and short-circuit
disappear, it restores to working status.
4.2.3 Pause control function
The pause button on the front panel can cut off the amplifier’s signal output. The Pause
indicator will be on and the Run indicator will be off after pressing the Pause button. The
output of amplifier is turned off.
4.2.4 Overheat protection function
When the overheat protection is activated, the amplifier will stop working automatically and
the “Overtemp” indicator will be on and it sends off alarm.
4.2.5 Voltage high power output function
In normal situation, the high power control button is located in OFF status and the indicator
is off. The voltage range of amplifier is 0～120V. When pressing ON button, the high power
control indicator lights and the voltage range is 0～250V.
Notes: 1. when the voltage is low, it is unnecessary to use high power output.

PAV250BIP Power Amplifier User Manual
14
2. Exit the high power function after finishing the function. Working in high power
output status in long time is not permitted.
3. Don’t switch high power control button while there is output.

PAV250BIP Power Amplifier User Manual
15
3.3 PAV250Bip Front Panel
12345
6
7
1. Ground protection
2. Current output
3. Voltage output
4. Status indicators
5. Amplifier input for the low level, for example, the output of RTDS, etc. Please refer to
definition below with the internal pins.

PAV250BIP Power Amplifier User Manual
16
1 2 3
4 5 6 7
8 9 10 11 12
13 14 15 16
17 18 19
6. High power control button
7. Pause
Definition
Pin
Lead
definition
3
IA+
2
IA-
1
IB+
7
IB-
6
IC+
5
IC-
8
UA+
16
UA-
15
UB+
14
UB-
13
UC+
19
UC-
18
UD+
17
UD-

PAV250BIP Power Amplifier User Manual
17
3.4 PAV250Bip Rear Panel
1
2
3
4
1. Ventilation
2. Ventilation
3. Power switch
4. Power socket

PAV250BIP Power Amplifier User Manual
18
5.How to Use Amplifier
5.1 Wiring
Connect digital simulator system’s D/A output signals to corresponding signal channels of
voltage input (Refer to the Definition of terminal leads). Pay attention that the shielded layer
of the signal wire at simulator side should be grounded.
5.2 Running
Check the power supply is normal before energizing the amplifier and the polarity of input
signal is correct. After all points are confirmed correctly, turn on the amplifier, the power
supply indicator will light and run indicator will flicker. It indicates the amplifier works normal.
5.3 Voltage Output
First, press “Pause” button and connect the voltage output terminals to corresponding
terminals of the tester respectively.And then inactivate the pause function and input
simulation signal, the amplifier will work under voltage amplifying status.
The formula is : Voltage output = Input simulation signal x gain
Notes: 1. Generally don’t’ press high power button (The high power control indicator is off.).
2. Never operate live signal and load cables with voltage or current output to protect
the safety of equipment and personnel.

PAV250BIP Power Amplifier User Manual
19
5.4 Amplifier Off
Stop simulation signal input firstly if users stop using amplifier. Press “Pause” buttons, and
cut off all connections of amplifier and load, lastly turn off power.
5.5 Amplifier Test Items
Before putting into market, the amplifier is required to have strictly inspections. The test
items are: function inspection, linearity, load stability, THD, max output power,
amplitude-frequency characteristic, input/output delay and step response, etc.
Please refer to Factory Test Report for the detailed information.

PAV250BIP Power Amplifier User Manual
20
6.Standard Accessories
Note: All the accessories used must be provided by PONOVO. For replacement or damage part,
please contact the manufacturer or agent for assistance. Users should take the consequence
without prior notice to manufacturer or agent.
Pictures for reference only
6.1 Soft Bag for Test Leads
The amplifier Wiring Accessory Package contains the following articles:
1. Colour coded voltage cables
SAW0201 colour coded voltage cable
Amount: 2xred, 2xblack, 2xyellow, 2xblue
The voltage cables to connect the amplifier output to other safety sockets of, generally the
voltage parts.