GZDW Intelligent High Frequency Switching DC Power Supply
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Product Introduction
GZDW Intelligent High Frequency switching DC Power supply
1. overview
The DC power suppIy paneI serves in power generation pIants and substations to function as power suppIy needed for opening & cIosing of high-voItage switch in case of normaI operation or emergency state reIaying protection automatic protection emergency Iighting and sound project. It aIso serves as power suppIy in such occasions as metaIIurgicaI industry raiIway mine petrochemicaI industry post teIecom hospitaI bank hoteI taII buiIding and computer network etc. The microcomputer-controIIed DC power suppIy cubicIe can function as a DC power suppIy for the power generation pIant substation and
for unattended and remote monitoring and controIIing.
2. Model Description
Number of batteries Rated output current output voltage level Battery capacity
Microprocessor protection device
Intelligent high - frequency switching DC power supply counters
3. Environmental Requirements
Normal Operation Conditions
1.Altitude ：≤ 2000m
2. Ambient temperature: -10℃ ~ +40℃ (temperature can be as low as -25℃ during transportation and storage)
3. Relative humidity: daily relative humidity < 95% on average; monthly relative humidity < 90% on average
4. seismic scale of earthquake < 8
5. The switchgear is applicable to category II contaminated environment.
Special Operation Conditions
If the switchgear will be used in conditions that exceed the normal environmental conditions, users shall negotiate with the manufacturer.
4. Technical parameter of GZDW
|
Item |
unit |
Data |
Test condition |
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|
Minimum vaIue |
Typical vaIue |
Maximum vaIue |
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|
Input voltage range |
VAC |
260 |
380 |
456 |
Rated output, full load |
|
Adjustable output range |
VDC |
180 |
240 |
300 |
Rated output, full load |
|
stabilized voltage precision |
0.1% |
0.1% |
output, 198-286VDC, 20-100% Ioad, Input, 260-456 VAC |
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|
precision of steady current |
0.5% |
0.5% |
output, 198-286VDC, 20-100% Ioad, Input, 260-456 VAC |
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|
Dynamic Response |
μs |
100 |
208 |
500 |
Rated output 20% -75% Ioad jump |
|
charger efficiency |
90% |
91% |
93% |
output 240V-90% Ioad |
|
|
Maximum audibIe noise storage |
dB |
45 |
50 |
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|
Temperature |
℃ |
-40 |
35 |
60 |
Full load, 40dB ambient noise output |
|
operating ambient temperature |
℃ |
-5 |
25 |
55 |
240v, full Ioad |
|
Broadband noise |
mV |
25 |
40 |
Rated input and output |
|
|
crest noise |
mV |
50 |
100 |
400 |
Rated input and output |
|
And machine are fIuid |
±1% |
±3% |
±5% |
Rated input and output |
|
|
start deIay |
s |
1 |
2 |
3 |
|
|
RippIe factor |
0.01%~0.1% |
Bandwidth 0 ~ 40MHz |
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|
InsuIation |
2000VAC 50Hz |
Time 1 minute, Ieakage current 10mA |
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|
InternaI radiator temperature rise |
CIass 1 (100% rated output current continuous operation) In the charging fIoat voItage range |
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|
Automatic current Limit |
Constant power protection, the output current does not FIoating charge operation, the output current exceeds increase, the DC output VoItage drops 110% of the ratedVoItage |
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|
Input VoItage protection |
AutomaticaIIy shut down rectifier moduIe to stop the output current |
FIoating charge operation, AC input VoItage exceeds the setting VaIue |
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|
output VoItage protection |
AutomaticaIIy stops the output current |
FIoating charge operation, the output VoItage exceeds the setting VaIue |
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|
output short-circuit protection |
After the fauIt is cleared, FIoating charge operation, the it will automaticaIIy resume normal output short circuit due tofaiIure operation |
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|
output current |
A |
5,10,20,30 |
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|
singIe unit weight (5A) moduIe |
kg |
5 |
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|
smallest size |
mm |
320×120×213 |
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Interface definition |
RS232 , RS485 |
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Cooling method |
Intelligent temperature control forced air cooling |
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ReIiability design |
N + 1 redundancy |
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|
working environment |
Indoor |
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paneI display |
Intuitive output voltage value, the output current vaIue is displayed |
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|
Input phase loss protection |
Have |
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over-temperature protection |
℃ |
90 ± 5 |
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Monitoring functions |
Minimum single-chip system, the standard host computer interface and standard industrial control interface |
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