48V 150A Rectifier 1u Rack Mount Telecom DC Power Supply

Product Description

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 20A@110Vdc;
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, Alibab assurance, West Union... Please contact us for more details.