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 2U shelf and can be paralleled up to 5*2U 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 50A@48Vdc;
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:
| MODEL |
NASN22030-1P |
NASN22070-3P |
NASN220110-3P |
|
| Environmental |
Operating temperature |
-40°C ~ 55°C |
| Storage temperature |
-40°C ~ 70°C |
| Relative humidity |
≤ 90%RH (30°C) |
| Altitude |
≤ 2000m (derating is necessary above 2,000m) |
| AC Input |
AC input system |
L+N+PE/220Vac |
L1+L2+L3+N/380Vac |
| Input voltage range |
90VAC ~ 280VAC |
323-437VAC |
| Input AC voltage frequency |
45Hz ~ 65Hz |
| Max input current |
≤28.4A |
| Power factor |
≥ 0.99 |
| DC Output |
Nominal output voltage |
220VDC |
| Rated output voltage |
242VDC |
| Rated Output Capacity |
7.5kW |
17.5kW |
27.5kW |
| Output DC voltage |
180VDC ~ -300VDC |
| Output DC current |
30A |
70A |
110A |
| Voltage set-point accuracy |
≤ 1% |
| Efficiency |
≥ 93.2% |
| Noise (peak-peak) |
≤ 200mV (0 ~ 20MHz) |
| Weighted noise |
≤ 2mV (300Hz ~ 3400Hz) |
| AC Input Alarm and Protection |
AC input over-voltage alarm point |
Default: 280VAC ± 5VAC* |
| AC input under-voltage alarm point |
Default: 176VAC ± 5VAC |
| AC input over-voltage protection recovery difference |
Default: 295VAC ± 5VAC, 10VAC lower than the AC input over-voltage protection point |
| AC input under-voltage protection point |
Default: 180VAC ± 5VAC* |
| DC Output Alarm And Protection |
DC output over-voltage alarm point |
Default:298VDC ± 0.5VDC* |
| DC output under-voltage alarm point |
Default: 180VDC ± 0.5VDC* |
| DC output over-voltage protection point |
Default: 194.5VDC ± 0.5VDC* |
| LLVD |
Default: 198VDC ± 0.5VDC* |
| BLVD |
Default: 194.5VDC ± 0.5VDC* |
| Rectifier |
Load sharing |
The rectifiers can work in parallel and share the current. The unbalance is better than ± 5% rated output current. |
| Derated by input (at 45°C) |
The rectifier can output power of 100% with input voltage of ≥154VAC; The rectifier can output power capacity 1200W with input voltage <154VAC;
Rectifiers under-voltage stop with input voltage of 85VAC |
|
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.
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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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