GZDW series DC Power Supply battery charge cabinet
Product Introduction
We Worldwide Electric Stock Co., Ltd (hereinafter referred to as Worldwide Electric) is a science and technology joint-stock enterprise on the integration of scientific research and development, production and sales, technical services.We are battery charge cabinet manufacturer. The battery charge cabinet (including in the switching of the circuit breaker, the charge of the spare cell, the instruments in the second loop and other low voltage equipment) used in power plant, hydrostation and substation of voltage class 35kv, 220kv and 110kv in China at present, most of them adopt phase supply or saturating supply, which are limited to the technology and the device performance. There are many disadvantages of the above power supplies and they can not meet the requirements of the rapidly developing power engineering. The high-frequency switch supply has the advantages of small volume, light weight, high efficiency, quite low output wave, quick modal response, high control accuracy and module added output, and it is the trend that the high-frequency switch supply will replace the phase supply gradually. Especially with the rapid development of the power electronic technique and the improvement of the power and device workmanship, the reliability and the application area of the high-frequency switch supply far better than that of the phase supply and the saturating supply.
Application
This product conforms to the specification of GB/T8456-1996 "low voltage DC switchgear".
The charging unit of this product can be high-frequency charging module and phase controlled charger.
The microcontroller of this product can be PLC controller type and SCM type.
GZDW series DC power supply panel is applicable to 10kv to 500kv substation, power plant, high buildings, the distribution room of the residential district and small self-contained power plant, as the high voltage switch, relay protection, operating of the automatic equipments, control supply and accident mains lighting supply. It is also applicable to other occasions that DC power supplies are needed.
Conditions applied
Environment temperature: -10℃ to +45℃
Height above sea level: ≤2400m
Relative humidity: daily average ≤95% monthly average≤90%
Earthquake magnitude ≤8
No fire, explosion danger, serious pollution, chemical erosion or severe quake occasion.
Type meaning
Note:
sorts of the cell:
C: super high-frequency Cd-Ni cell;
G: high-magnification Cd-Ni cell;
Z: medium- magnification Cd-Ni cell;
F: anti-acid lead acid cell;
M: exempt from maintenance lead acid cell.
Technical parameters
- AC input power supplies are two circuits three-phase four-line main supply and reserve supply. Rated input voltage: three-phase AC four-line 380V±10%, frequency50Hz±5%.
- Lightening protection: more than 2000: 1.
- Rated output DC voltage: 110V, 220V.
- Rated output current: 6A, 10A, 12A, 20A, 30A, 40A, 50A, 60A, 70A, 80A, 90A, l00A, 120A, 130A, 150A, 180A, 200A, 260A, 300A, 400A.
- Rated capacity of the secondary cell: 10Ah, 20Ah, 38Ah, 65Ah, 100Ah, 150Ah, 200Ah, 300Ah, 500Ah, 600Ah, 800Ah, 1000Ah, l500Ah, 2000Ah, 3000Ah.
- System capacity: 10Ah, 20Ah, 38Ah, 65Ah, 100Ah, 150Ah, 200Ah, 300Ah, 400Ah, 600Ah, 800Ah, 1000Ah, 1500Ah, 2000Ah, 3000Ah.
- Complete appliance noise: <55dB.
- Operation mode: continuous operation.
Technical parameters of the three sorts cells:
|
Cell sort Tech-parameter Item name |
Fixed anti-acid lead acid cell GF |
Cd-Ni secondary cell |
Sealed lead acid battery MF/GM |
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|
Super high GNC |
High GNC |
Medium GNC |
|||
|
Rated voltage |
2V |
1.2V |
1.2V |
1.2V |
2V |
|
Discharge magnification |
≤1C |
≥6C |
3C-6C |
1C-3C |
＜3C |
|
Equalizing charge voltage |
2.4V |
1.55V |
1.55V |
1.55V |
2.35V |
|
Floating charge voltage |
2.30V |
1.4V |
1.4V |
1.4V |
2.25V |
|
Discharge over voltage |
1.75V |
1V |
1V |
1V |
1.85V |
Performance characteristics of the charging module
Technical index of module 240D05A
|
Item |
Index |
Test condition |
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|
Min |
Representative value |
Max |
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|
Input voltage range (VAC) |
300 |
380 |
456 |
Output 240ADC, full load |
|
Output adjustable range (VDC) |
180 |
230 |
300 |
Input 380DAC, full load |
|
Stabilized voltage accuracy |
0.01% |
0.5% |
Output 198-286VDC, 20-100% load, input 300-456VAC |
|
|
Stabilized current accuracy |
0.08% |
0.5% |
Output 198-286VDC, 20-100% load, input 300-456VAC |
|
|
Dynamic effect |
12uS |
50uS |
100uS |
Rated output 20-75% load jump |
|
Charger efficiency |
88% |
90% |
91% |
Output 300V, 5A |
|
Max hearable noise (dB) |
50 |
60 |
Full load, environment noise 40dB |
|
|
Storage temperature (℃) |
-40 |
35 |
60 |
|
|
Service environment temperature (℃) |
-15 |
25 |
45 |
Output 240V, 20A |
|
Wide frequency stray noise (mV) |
18 |
25 |
40 |
Rated input and output, resistance load |
|
Peak stray noise (mV) |
100 |
300 |
400 |
Rated input and output, resistance load |
|
Parallel asymmetric current degree |
±0.5% |
±2% |
±5% |
Rated input and output, monitor the balance current |
|
Starting delay (second) |
1 |
2 |
3 |
|
|
Ripple factor |
0.01% to 0.1% |
Frequency width 0-20MHz |
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|
Dielectric strength |
1500VAC 50Hz |
Time 1 minute, leak current 10mA |
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|
Inner radiator temperature rise |
≦25℃ |
Environment temperature 45℃ |
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|
Load class |
Continuous working whenⅠclass(100%)rated output current |
In floating charge voltage range |
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|
Automatic current limitation characteristic |
Output current exceeds 112% of the rated current |
Constant power protection, the output current won't increase and DC voltage reduces. |
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|
Input over voltage protection |
Input voltage setting value(456±5VAC), automatically close the rectifier. Lightning stroke transient over voltage adopts HARRIS special lightning arrestor for elements. |
Automatically return after the voltage is normal. The over voltage value can be set(be set when the output is no-load) |
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|
Output over voltage protection |
Automatically stops outputting when output voltage exceeds 328±3VDC to avoid the device damage. |
Automatically return after the voltage is lower than the over voltage value. The over voltage value can be set. |
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|
Output short circuit protection characteristic |
In any input voltage, output voltage and load conditions, the output short circuits because of the fault. |
Automatically return to normal operation after troubleshoots. |
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High frequency switch power DC system compares with the normal power DC system
|
Sort of the charger |
Normal power DC system |
HXT charging unit of high frequency switch power |
|
Technical parameter |
||
|
Item name |
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|
Stabilized voltage accuracy |
≦±2% |
≦±0.1% |
|
Stabilized current accuracy |
≦±1% |
≦±0.5% |
|
Ripple factor |
≦±2% |
≦±0.1% |
|
Supply effect |
≦2% |
0.05% |
|
Efficiency |
>75% |
>90% |
|
Noise |
<55dB |
<55dB |
|
Harmonic |
No interference |
No interference |
|
Cell management function |
Ordinary |
Perfect |
General
High frequency charging module adopts three-phase three-line balance input without middle wire current lost. At the AC input terminal, the advanced peak suppressor and EMI filter circuit are adopted. To take the MOFEI as the main element, adopting PWM PDM high frequency technology and AC／DC→DC／AC→AC／DC transformation, with autonomous current equalization to fulfill N+1 redundant backup. Electric heating plug can be adopted and it is no need to be adjusted after finish setting.
FAQ