Download Programmable AC/DC Electronic load MODEL 63800 SERIES

Programmable
AC/DC Electronic load
MODEL 63800 SERIES
Key Features :
Power Rating:
1500W, 45000W
Voltage Range: 50V - 350Vrms
Current Range: Up to 45Arms
Frequency Range: 45 to 440Hz,
DC
Real time power factor correction
prevents over-stressing
Crest Factor Range: 1.414 to 5.0
Power Factor Range: 0 to 1
CC,CR,CV,CP load modes
Master/Slave parallel control
mode for single or three phases
PROGRAMMABLE
AC/DC ELECTRONIC LOAD
MODEL 63800 SERIES
C h r o m a ’s 6 3 8 0 0 S e r i e s A C / D C
Electronic Loads are designed for testing uninterruptible power supplies, AC
sources and other power devices such
as switches, circuit breakers, fuses and
connectors. The power rating, paralleling and synchronization capabilities
make the 63800 an ideal tool for high
power AC test simulation.
The 63800 Loads include voltage and
current readback capability allowing
users to observe the AC load current
and output voltage of either discretely
with via oscilloscope using analog outputs. In addition, the load provides TTL
signals to control external relays for
short circuit (crowbar) testing.
The 63800 Loads can simulate high
crest factor and varying power factor
load conditions with real time correction
base on voltage distortion. These special features provide real world simulation capability and prevent over-stressing that allow AC products to be tested
automatically and reliability.
The 63800 Series AC/DC Loads also
provide necessary measurement functions along with GPIB & RS-232 interfaces for the most demanding engineering tests and ATE applications.
Equipped with unique timing measurement functions, the 63800 Loads allow
users to measure the battery discharge
time, the protective time for fuse and
breaker and UPS life cycle .
UUT
Voltage & Current Monitoring
Timing Measurement Function for
Battery, UPS, Fuse and Breaker
tests
100 user programmable sequences
via front panel for user friendly
operation
Measurement: V, I, PF, CF, P, Q
S, F, R and Ip-/+
Short circuit simulation
Full protection: OP,OC,OV and
OT protection
GPIB & RS-232C interfaces
Other features of the 63800 Loads
include built in fan speed control to
minimize audio noise, internal self-diagnosis firmware and full protection
against over-power, over-current and
over-temperature.
Model 63802
1.Application Specific Load Simulation
The operating frequency range of the 63800 Loads is 45Hz to 440Hz as well as DC. Modes included are constant current, constant resistance, constant voltage and constant power as depicted below.
When testing constant voltage devices like UPSs and AVRs, CC and CR modes are helpful in verifying these devices
remain stable and/or within regulated limits under different current & resistance load settings.
When testing battery chargers or other current source products, the output current changes according to the battery voltage (i.e. the output current varies with the output voltage). In these cases the loads CV mode is designed to force
changes in output voltage allowing the load to be used to test battery chargers for correct charge current and battery
voltage very precisely.
In the case where the device under test is a battery or fuel cell, the 63800 load can simulate the behavior of various
loads which these devices might be designed to drive. Many of this loads have power consumption patterns which are
constant power in nature. Consequently, the Load CP mode is designed to simulate these load types and is essential
for battery discharge loading.
2.Crest Factor & Power Factor with real time correction
The specification range of CF is 1.414 to 5.0 and PF is 0
to 1 lead or lag (limited by crest factor). The 63800 load
controls power factor by shifting the current relative to the
input voltage to generate a displacement power factor. If
the PF programmed is positive it will be a leading PF,
negative programmed values result in a lagging PF.
The CF & PF control is only used while in CC or CP
modes with the operating range limit as figure 1. For
example, for a programmed crest factor of 1.414, the
power factor allowed is only 1 assume that the input voltage is 350Vrms sine-wave. However, for a programmed
CF of 2.0, the PF may range from 0.608 to 0.85, for a programmed CF of 3.0, the PF may range from 0.211 to 0.6
and so on. Thus, if a higher desired power factor the
lower the range of crest factors, and vice versa.
Note also that when high crest factors are programmed
some UUTs will respond with a distorted voltage waveform (see figure 2) which changes the resultant power
factor. The 63800 AC load is capable to automatically (in
real-time) shift the current waveform to maintain the
desired power factor setting, thereby compensating for
voltage distortion of the UUT’s output.
PF
CF
Figure 1:Crest Factor vs.Power Factor control Range
CF =Ipk/Irms
PF =Active Power/Apparent power
Figure 2
3.User Programming sequences
The 63800 AC/DC Load includes 100 user programmable sequences with a time range from 10ms to 24 hour and count
from 0 to 65535. A user friendly front panel input with power factor & crest factor control and GO/NG inspection for
semi-automated test applications is also included. These features assist in many kinds of testing including UPS transient load simulation, high inrush current generation, short testing, engine start-up loading simulation, battery automated
discharging, fuse and breaker life cycle testing and many others.
4.Master / Slave parallel control
When higher power levels or three phase operations is required, the 63800 loads may be used parallel or combined for
3-phase loading. The 63800 loads allow for Master / Slave control mode whereby users only need to program the master unit; and slave units are automatically scaled and controlled by the master. In short, this allows several load units to
work as a single load simplifying operation dramatically.
5.Comprehensive Measurements
Chroma’s 63800 Series AC/DC Electronic Loads includes built-in 16-bits precision measurement circuits and firmware
utilities to measure the steady-state and transient responses for true RMS voltage, true RMS current, true power(P),
apparent power(S), reactive power(Q), crest factor, power factor and peak repetitive current .
In additional to these discrete measurements, analog outputs for voltage and current are provided as a convenient
means of monitoring these signals via an external oscilloscope.
6.Timing Measurement
The 63800 AC/DC Load also includes unique timing measurement function allowing for time ranges between 0.1ms to
99999s. This feature allows users to set the final voltage & time out value to measure battery discharge time,A trigger
voltoge can be set to measure the protective time of fuse & circuit breaker testing and UPS life cycle time record.
7.Panel Overview
3
2
1
4
1. LCD Display:
For Setting and measurements read back.
2. Function key:
To select load mode, control mode, and system
6
5
config setting.
3. Numeric key: For data setting.
4. Cursor key: For setting and editing.
5. Power switch
6. Rotary knob:
It adjusts the loading and parameter setting.
7. Voltage sense terminal
8. Current monitor output:
7
8
9 10
11
12
13
14
Analog output to indicate the current waveform.
9. Voltage monitor output:
Analog output to indicate the voltage waveform.
10. System I/O:
Synchronous signal for master/slave parallel control
11. TTL I/O:
For system input/output control signal
12. System Bus:
For master/slave control system data communication
13. GPIB connector
14. RS-232C connector
15. AC Input connector
16. AC input voltage switch
15
6 •3 •8 •0 •0
16
17
17. Load terminal
APPLICATIONS
Relays,
Switches Testing
UPS/AVR
Testing
Avionics Testing of
Military and Aircraft
Breakers,
Fuses Testing
Transformers
Testing
1. UPS & AVR Testing
Uninterruptible Power Supplies (UPSs) and Auto Voltage Regulators (AVRs) are known as safe-guard systems. The
63800 is designed to provide precisely controlled non-linear loads with programmable crest factor and power factor to
replace resistive load banks for testing these devices. This technology allows real world test conditions to be reliably
and repetitive applied which are not possible with passive resistive loading.
CC MODE
CP MODE
2. Battery Test with Discharge Time Record
Since power consumption patterns of most electronic devices are typical constant power in nature, Chroma's 63800
Electronic Load contant power mode is ideal for battery testing allowing for precise control & measurement of discharge
loading with time record.
CC MODE
CP MODE
3. System Integration
Chroma 63800 AC/DC Electronic Loads have GPIB, RS-232C and PC controllable interfaces. Additionally, external
load ON/OFF by TTL signal, AC-ON signal output with /fault out signal and voltage / current monitoring capabilities make
the 63800 Loads ideal for integration into automatic test system.
Specifications
Model
63801
63802
Power
1500W
4500W
Current
0 to 15Arms (45Apeak)
0 to 45Arms (135 Apeak)
Voltage
50 to 350Vrms (500 Vpeak)
50 to 350Vrms (500 Vpeak)
Frequency
45 to 440Hz, DC
45 to 440Hz, DC
Constant Current Mode
Range
0 to 15Arms, Programmable
0 to 45Arms, Programmable
Accuracy
0.1% + 0.2%FS
0.1% + 0.2%FS
Resloution
1mA
3mA
Range
7.5
Constant Resistance Mode
300
/300
3K
2.5
100
/100
Accuracy
0.5% + 0.5%FS
0.5% + 0.5%FS
Resloution
20 u mho/ 2 u mho
50 u mho/ 5 u mho
1K
Constant Voltage Mode
Range
50~350Vrms, Programmable
Accuracy
0.1% + 0.2%FS
50~350Vrms, Programmable
0.1% + 0.2%FS
Resloution
100mV
100mV
Range
1500W, Programmable
4500W, Programmable
Accuracy
0.1% + 0.2%FS
0.1% + 0.2%FS
Resloution
0.375W
1.125W
Constant Power Mode
Crest Factor
Range
1.414 to 5.0, Programmable
1.414 to 5.0, Programmable
Accuracy
1%FS
1%FS
Resloution
0.005
0.005
Range
0 to 1, Programmable
0 to 1, Programmable
Accuracy
1%FS
1%FS
Resloution
0.001
Power Factor
0.001
DC Mode
Voltage Range
7.5V to 500V
7.5V to 500V
Current Range
0A to 15A
0A to 45A
Min. operating voltage
7.5V
7.5V
Rise time
75 us
75 us
Operating Mode
CC, CV, CR, CP
Short Circuit Mode
Max. Current @50ms
Display
Dot matrix 240x64, graphic mode (text mode at 1st stage)
(TTL indicates high/ low when the short key is set on/off)
Measurement
DVM Range
0.0 to 350.0Vrms
0.0 to 350.0Vrms
DVM Accuracy
0.1% + 0.1%FS
0.1% + 0.1%FS
DVM Resloution
10 mV
10 mV
DAM Range
0.0 to 50.00Arms
0.0 to 150.00Arms
DAM Accuracy
0.1% + 0.1%FS
0.1% + 0.1%FS
DAM Resloution
1.0 mA
2.5 mA
PROGRAMMABLE AC/DC ELECTRONIC LOAD
PROGRAMMABLE AC/DC ELECTRONIC LOAD
PROGRAMMABLE AC/DC ELECTRONIC LOAD
Other Specifications
Vmonitor
500V/10V(Isolated) / 3%FS
500V/10V(Isolated) / 3%FS
Imonitor
50A/10V(Isolated) / 3%FS
150A/10V(Isolated) / 3%FS
Protection
OCP:18Arms, OVP:380Vrms
OCP: 48Arms, OVP:380Vrms
OPP:1800W, OTP
OPP:4800W, OTP
Parallel Ability
Yes
Yes
Interface
External : GPIB, RS-232 , Internal : Can bus, TTL I/O
Line Voltage
115/230 Vac
(Pure) Inductive Load
No
No
(Pure) Capacitive Load
No
No
Dimension
4U
7U
External load ON/OFF
The AC load can be achieved by TTL high signal.
AC-ON
When AC Load is on, this pin turns into HIGH and turns into LOW
15%
115/230 Vac
15%
when the load is off.
/Fault out
The voltage level of this pin is HIGH if AC load is in normal state.
It turns into LOW when AC load is in protection state.
(lol) low level output current = +1.25mA max.
(Vol) low level output voltage = 0.5V max.
All specifications are subject to change without prior notice.
Ordering Information:
63801: Programmable AC Electronic Load 1500W/15A/350V
63802: Programmable AC Electronic Load 4500W/45A/350V
V-I Curve Operating characteristics (Typical) of 63800 series
Model 63801/63802
Model 63801/63802
AC mode
DC mode
6 •3 •8 •0 •0
All specifications are subject to charge without notice.
Developed and Manufactured by :
Distributed by:
CHROMA ATE INC.
HEAD OFFICE
66,Hwa-Ya 1st Rd., Hwa-Ya Technical
Park, Kuei-Shan Hsiang, Taoyuan Hsien
333,Taiwan
Tel: +886-3-327-9999
Fax: +886-3-327-8898
http: //www.chromaate.com
E-mail: [email protected]
U.S.A.
CHROMA ATE INC.(U. S. A.)
7 Chrysler ,Irvine, CA 92618
Tel : +1-949-421-0355
Fax : +1-949-421-0353
Toll Free:+1-800-478-2026
Europe
CHROMA ATE EUROPE B.V.
Max Planckstraat 4
6716 BE Ede, The Netherlands
Tel : +31-318-648282
Fax : +31-318-648288
China
CHROMA ELECTRONICS
(Shen Zhen) Co.,Ltd.
8F, No.4, Nanyou Tian An
Industrial Estate, Shen Zhen,
China, PC: 518052
Tel : +86-755-664-4598
Worldwide Distribution and Service Network
Fax : +86-755-641-9620
63800-931101-2000