NASN rectifiers
NASN rectifiers bring advanced technology to the DC power industry. Innovative engineering combines the best in efficiency and reliability to meet the power requirements for a variety of system applications. This rectifier is specifically designed to recharge all types of stationary batteries for large utility, petrochemical and industrial uses.
The fan cooled rectifier module has extremely high density providing the most power in the least amount of space. A compact shelf accommodates four rectifiers per 19in 1U shelf and can be paralleled up to 5*1U 19in shelf.
Local and remote setup, adjustment and control is a simple, single-step process with the rectifier System Controller. By utilizing TCP/IP technology, complete configuration and monitoring of power equipment is possible through a Windows Internet Explorer browser.
We can provide turnkey solutions for outside plant, headend, telecommunications, industrial and renewable energy applications. We work to combine your small-, medium- and large-scale projects with the necessary installation resources.
Features:
1. Switch Mode Power Supply;
2. Hot swappable and Plug and Play;
3 .N+1 redundancy,each module available in 75A@24Vdc;
4 .AC /DC distribution system for AC input/ DC output distribution and protection;
5.RS232, RS485, SNMP communication for remote control;
6.Compact design and embedded modular system, support power system and module sleep, efficient mixing, energy saving;
7.High Efficiency with low EMI. CE Safety and EMC certification
8.Protection for Input and output over /under voltage,short circuit and over temperature
Applications:
Vehicle and shipboard equipment: Railway station, transportation equipment, etc.
Industrial equipment: solar power, wind power, gas discharge lamps, etc.
Office equipment: computer, printer, copy, scanner, etc.
Kitchen appliances: microwave oven, induction cooker, rice cooker, etc.
Household electrical equipment: electric fans, vacuum cleaners, lighting fixtures, etc.
Datasheet:
Electrical Specification
1.1 Input Characteristics
AC Input Characteristics
| Input Voltage Range |
85Vac to 300Vac |
| Rated Input Voltage |
110Vac / 220Vac |
| Nominal Input Voltage Range |
200Vac to 250Vac |
| Frequency Range |
45Hz-66Hz |
| Maximum Input Current |
18A |
| Surge Current |
Standard: EN/IEC61000-4-5 |
| Efficiency |
≥96%@230Vac peak efficiency |
| Power Factor |
≥0.99@220Vac/20%~100% Load |
| Input Current Thd |
<5%@ 50% Load
<8%@ 20% Load |
| Leakage Current |
<3.5mA@264Vac |
| Rated Power |
3000W(176Vac~290Vac)
1250W(85Vac~175Vac linear derating) |
| Maximum Input Rush Current |
30A |
| Input Fuse |
with 25A fuse on L&N |
| Maximum Input Voltage |
320Vac(power good) |
DC Input Characteristics
| Input Voltage Range |
120Vdc to 400Vdc |
| Rated Input Voltage |
340Vdc |
| Nominal Input Voltage Range |
200Vdc to 400Vdc |
| Maximum Input Current |
17A |
| Surge Current |
Standard: EN/IEC61000-4-5 |
| Reverse Polarity Protected |
No damage even with the wrong polarity |
| Input Fuse |
Fuse on both the positive and negative polarities. |
| Efficiency |
≥96%@325Vdc peak efficiency |
| Rated Power |
3000W(200Vdc~400Vdc)
1800W(120Vdc~200Vdc linear derating) |
| Maximum Input Voltage |
450Vdc(power good) |
1.2 Output Characteristics
1.2.1 Output voltage & current regulation
| Output Voltage |
+53.5Vdc |
| Output Voltage Setting Value |
+53.5±0.1Vdc |
| Adjustable Output Voltage Range |
+42Vdc~+58Vdc |
| Current-Unbalance |
≤±3% |
| Source Effect |
±0.1% |
| Load Effect |
±0.5% |
| Stabilized Voltage Precision |
±0.6% |
| Minimum Current |
0A |
| Rated Current |
50A |
| Peak Current |
[email protected]V |
| Temperature Coefficient(1/°C) |
≤±0.02% |
| Power Failure Hold-Up Time |
10ms |
| Stand-By Power Consumption |
≤4W |
| Maximum Capacitive Load |
4000uF |
| The Maximum Number Of Modules In Parallel Connection |
31 |
1.2.2 Output Ripple & Noise
| Performance Index |
Maximum |
Remark |
| Ripple & noise(peak-to-peak) |
200mVp-p |
bandwidth≤20M |
Note: 1) ripple & noise test: ripple& noise bandwidth is set at 20 MHz.
1.2.3 Output Transient Response
| Voltage Overshoot |
Jump Slope |
Load Fluctuation |
Recovery Time |
Output Overshoot |
| +53.5V |
0.1A/uS |
25%~50% load,
50%~25% load,
50%~75% load,
75%~50% load
|
≤200us |
≤±5% |
| +58V |
0.1A/uS |
0%~100% load, 100%~0% load |
|
over-temperature protection untriggered |
Note: the load jump period is 4ms.
1.2.4 Startup Output Overshoot
| Output Voltage |
Load Fluctuation |
Output Overshoot |
| +53.5V |
Startup overshoot |
<1% |
1.2.5 Startup Delay
| Item |
220Vac@25ºC |
| Startup Delay |
3S~8S |
Note: startup delay starts from power on to output voltage rising up to 42VDC.
1.2.6 Power Conversion Point(53.5V)
| Input Voltage |
Maximum Output Power |
| 176Vac~290Vac |
3000W |
| 85 Vac~176Vac |
linear derating |
| 85Vac |
1250W |
| Input Voltage |
Maximum Output Power |
| 200Vdc~400Vdc |
3000W |
| 120 Vdc~200Vdc |
linear derating |
| 120Vdc |
1800W |
1.2.7 Output External Characteristic
1.2.8 Temperature Derating
| Environmental Temperature |
Maximum Output Power |
| -40~55ºC |
3000W |
| 55~65ºC |
linear derating |
| 65ºC |
2400W |
| 65~75ºC |
linear derating |
| 75ºC |
1200W |
1.2.9 Noise Voltage
| Noise Voltage |
Maximum |
Remark |
| telephone weighted noise voltage |
≤2mV |
|
| wide band noise voltage |
≤50mV |
3.4~150KHz |
| ≤20mV |
150~30000KHz |
| discrete noise voltage |
≤5mV |
3.4~150KHz |
| ≤3mV |
150~200KHz |
| ≤2mV |
200~500KHz |
| ≤1mV |
500~30000KHz |
1.3 Protection Function
1.3.1 Output Short Circuit Protection
| Output Voltage |
Remark |
| +53.5V |
long - term short circuit is allowed, automatic recovery is triggered when short circuit fault disappears |
1.3.2 Output Over-voltage Protection
Output over voltage protection can be divided into the internal over voltage protection and the external counterpart. Internal overvoltage fault range is 58.5VDC~60.5 VDC, which can be set through monitoring; when failure occurs, the module is locked. The external voltage is greater than 63VDC and lasts more than 500ms, the module is locked. Being in the protection state, the AC power supply shall be disconnected first and then reenergized to ensure the power supply resumes work properly.
1.3.3 Output Under-voltage Alarm
The input under-voltage range is 37VDC~39VDC. When the input voltage is lower than the under-voltage alarm value, alarm prompt will be reported with normal output.
1.3.4 Input Over-voltage Alarm & Protection
AC Input
| Input Voltage |
Remark |
| 290~300Vac |
The alarm light is on with normal output |
| 310±5Vac |
Output is off and the input is disconnected from the power grid. Output can be recovered automatically when the voltage is normal. |
| |
input recovery point hysteresis>10V |
DC Input
| Input Voltage |
Remark |
| 390~400V dc |
The alarm light is on with normal output |
| 420±5V dc |
Output is off and the input is disconnected from the power grid. Output can be recovered automatically when the voltage is normal. |
| |
input recovery point hysteresis>10V |
Note: input over-voltage protection shall be tested with 50A rated load.
1.3.5 Input Under-voltage Alarm & Protection
AC Input
| Input Voltage |
Remark |
| 80±5Vac |
Output is off and can be recovered automatically when the voltage is normal |
| |
input recovery point hysteresis>5V |
DC Input
| Input Voltage |
Remark |
| 110±5Vdc |
Output is off and can be recovered automatically when the voltage is normal |
| |
input recovery point hysteresis>5V |
1.3.6 Over-temperature Protection
| Temperature |
Remark |
| ≤55ºC |
The module runs properly with the maximum output power and without temperature protection |
| 55ºC~65ºC |
linear derating of module power to 2400W |
| 65ºC~75ºC |
linear derating of module power to 1200W |
| >75ºC |
The module recovers automatically with the temperature hystersis>10ºC in the state of shutdown when the temperature is above 75ºC |
1.4 Communication between Rectifier Module & Monitoring Module
CAN-bus communication mode is adopted between the rectifier module and the monitoring module. Remote software version upgrade is supported, and the address of the module can be set through the address board. When AC input is disconnected, the module needs to communicate with the host.
Isolation design is employed for CAN interface in the rectifier module. The power supply of CAN is +5Vdc, which is provided by the rectifier module internally.
The main monitoring information of the rectifier module is as below:
1) Voltage regulation & current regulation functions: meeting the requirements of floating charging battery and voltage regulation;
2) Single module control of startup & shutdown;
3) Protection & Alarm Information Feedback:
Mains fault: mains fault (AC input over-voltage/under-voltage);
Module protection: temperature pre-alarm;
Module fault: fan fault, over temperature shutdown or no output caused by the module internally;(the module is in the state of dormancy and shutdown, and the mains failure is not reported to the module).
1.5 LED Indicator
LED indicators are installed on the side board with details as below:
| Indicator |
Color of Indicator |
Normal State |
Abnormal State |
Root Reason |
| running indicator |
Green |
On |
Off |
Mains power failure (no AC input, AC input over-voltage/under-voltage), no output of the module. |
| protection indicator |
Yellow |
Off |
On |
Temperature Pre-alarm (ambient temperature over 65°C ~ thermal shutdown)
Dormancy shutdown (when dormancy shutdown, only the protection indicator light is on without any alarm).
Communication interruption (protection indicator flickers) |
| malfunction lndicator |
Red |
Off |
On |
Output over-voltage shutdown, fan failure, over-temperature shutdown, no output caused by the module internally. |
More details:
The SMPS based CONVERTER should be based on High Frequency (20 KHz and above)
Switch Mode techniques.
Resettable Fuses shall be provided, wherever appropriate, to protect the module against failure
of control / sensing circuit.
The design shall have suitable time delay / hysteresis to avoid hunting during switching ON and
OFF of the system. The module shall disconnect at 150V and reconnect at 170V AC.
Switching ON and OFF the fan shall be temperature controlled. In case of fan failure the module
shall have automatic protection to switch off the module above 70 deg centigrade and restore
automatically with reduction in temperature. It shall not cause any fire hazard. The fan shall also
be protected against short circuit by providing a fuse.
The CONVERTER modules shall have forced cooling and only DC fan shall be used.
DC Output Characteristics
The module shall be capable of operating in "Auto Float cum-Boost charger" mode. It shall be
programmed to operate as a float rectifier or a Boost charger depending on the condition of the
battery
Auto Float Mode
Float voltage of each rectifier module shall be set as given below:
Normal Float & Boost voltage for VRLA battery is 2.25V and 2.3V/Cell respectively.
For conventional battery it shall be 2.15V and 2.42V/cell, respectively.
For 110V/20Amp charger 55cells of 2V each will be used and for 48V/25A charger 24 cells of 2V
each will be used.
The module should have a range from 2.0 - 2.3V/cell in float mode & 2.2 - 2.5V/cell in boost
mode to meet the requirement of VRLA as well as conventional batteries.
The DC output voltage shall be maintained within ± 1% of the half load pre-set voltage in the
range 25% load to full load when measured at the output terminals over the full specified input
range.
Auto Boost Charge Mode
In auto boost charge mode, CONVERTER shall supply battery and equipment current till
terminal voltage reaches 2.3V (VRLA battery) /2.42V (Low Maintenance battery) per cell.and
shall change over to Auto Float mode after a defined delay of 0, 1, 2, 4 hours adjustable, to be
set as per battery manufacturer's specification.
Efficiency
The efficiency and Power factor of the CONVERTER in auto float and auto boost mode shall be
as follows:
Nominal input - 150-275V
Output - Full Load, Efficiency > 90% and Power factor >0.95 to unity
And for
Nominal input - 150-275V
Output - 25% to 100%, Efficiency > 85% and Power factor >0.9
Note: Active power factor correction circuit shall be adopted.
Total Harmonic Distortion
The total line harmonic voltage distortion shall not be more than 10%.
The total current harmonic distortion contributed by CONVERTER at the input shall not exceed
10% for all input condition and load 50% to 100% of the rated capacity.
Soft Start Feature
Slow start circuitry shall be employed such that CONVERTER module output voltage shall reach
its nominal value slowly within 10 to 20 seconds, eliminating all starting surges.
The maximum instantaneous current during start up shall not exceed the peak value of the
rectifier-input current at full load at the lowest input voltage specified.
Voltage Overshoot/Undershoot (with battery disconnected)
The CONVERTER modules shall be designed to minimize output voltage overshoot /
undershoot such that when they are switched ON, the DC output voltage shall be limited to ± 5%
of the set voltage and return to its steady state within 20 millisecond for any load of 25% to
100%.
The DC output voltage overshoot for a step change in AC mains from 150V to 275V shall not
cause shut down of CONVERTER module and the voltage overshoot shall be limited to ±5% of
its set voltage and return to steady state within 20ms.
The modules shall be designed such that a step load change of 25% to 100% or vice- versa
shall not result in DC output voltage overshoot/undershoot of not more than ±5% of the set value
and return to steady state value within 10 millisecond without resulting the unit to trip.
Parallel Operation
The CONVERTER modules shall be suitable for operating in parallel on active load sharing
basis with one or more modules of same type, make and rating.
The current sharing shall be within ± 10% of the individual capacity of each CONVERTER in the
system when loaded between 50 to 100% of its rated capacity.
Alarms & Indication of CONVERTER
The following indications, controls & measuring points shall be provided on the front panel of
CONVERTER
a) CONVERTER on Auto Float mode FLOAT Green
b) CONVERTER on Boost Charge mode BOOST Green
c) Mains available MAINS Amber
Alarm Indication with LED:
a) Rectifier module over voltage OVER VOLTAGE Red
b) Rectifier module under-voltage UNDER VOLTAGE Red
c) DC output fail OUTPUT FAIL Red
d) CONVERTER Overload/ short circuit OVERLOAD/ SHORT CIRCUIT Red
e) Fan fail FAN FAIL Red
Note: "Provision shall be made for stopping the audio alarm with a non-locking push button.
a) Float voltage adjustment (float)
b) Boost voltage adjustment (boost)
c) Overload current setting (OL)
d) Voltage monitoring point suitable for measurement by standard multimeter.
Other Popular
FAQ
Q1: What kind of EV Charger do you have?AC and DC charger with connectors Type2, CCS1/CCS2, CHAdeMO, GB/T, etc.
Q2: Do you provide customized product?
We provide OEM and ODM services for clients.
Q3: What is the delivery time of EV charger?
About 4-6 weeks.
Q4: What about your warranty of EV Charger?
Generally 2 years. Our warranty period depends on customer's requirements and we always put customer's need as priority.
Q5:How do you package it ?
A:We pack in cartons.
Q6:what's the MOQ?
A:For LOGO, color or other special requirements, a minimum of 20 is required. If you do not have these requirements you can buy
directly, we will ship within 3-10 days.
Q7:Can you produce according to the samples?
A:Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q8:Do you test all your goods before delivery?
A:Yes, we have 100% test before delivery.
Q9:What is your terms of delivery?
A:EXW, FOB, CFR, CIF, DDU.
Q10:What is your terms of payment?
A:We accept all methods of payment: paypal, T/T, credit card, Alibaba assurance, West Union... Please contact us for more details.
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