48V Hybrid Solar Power Telecom System

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 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 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:
R4850-B AC-DC rectifier


1.1 Input Characteristics
      AC Input Characteristics
 

Input Voltage Range	85Vac to 300Vac
Rated Input Voltage	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)

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

T4850M DC-DC MPPT charger module

2.1Input Voltage
 

Parameters	Range	Note
Input Rated Voltage	100Vdc
Input operating voltage range	58Vdc to 150Vdc	Start-up voltage >75Vdc
MPPT Operating Voltage Range	58Vdc to 120Vdc	Voc not greater than 150V
Maximum Input Voltage	165Vdc	Modules are not damaged

2.2 Input current

 

Rating	Maximum Values	Note
28.5A	Values 46A	Output rated voltage full load

2.3 Conversion efficiency
 

Parameters	Requirements	Note
Maximum efficiency	≥97%	100Vdc@ 25ºC, 10 minutes power on After

2.4 MPPT Efficiency
 

Parameters	Requirements	Note
MPPT efficiency	≥99.9%	Input power ≥ 400W

2.5 Standby power consumption
 

Parameters	Requirements	Note
Standby power consumption	≤4W (no power consumption at night)	100Vdc Input

2.6 Output external characteristics

 

Output Voltage	Maximum Output Current
38~58V	Constant current 52A

2.7 Output Voltage Adjustment Ratio

Output Voltage Index	Output Voltage	Accuracy Range	Note
source effect	43.2~58 V	≤±0.1%	Difference between DC output voltage and output voltage setting value at different input voltages
load effect	43.2~58 V	≤±0.5%	Difference between DC output voltage and output voltage setting value under different loads
Voltage stabilization accuracy	43.2~58 V	≤±0.6%	Difference between DC output voltage and output voltage setting value for different input voltages and different load combinations
Temperature coefficient (1/°C)	43.2~58 V	≤±0.02%	Difference between DC output voltage and output voltage setting value for every 1°C change in temperature relative to 25°C ambient temperature.

Note: The set value refers to the rated 100Vdc input, corresponding to the output voltage tested at half load.

2.8 Output Ripple and Noise
 

Output Voltage	Ripple And Noise (peak-to-peak)	Note
+43.2~58Vdc	≤200mVp-p	1. Rated input voltage range, minimum load to maximum load, full temperature range. 2. The oscilloscope bandwidth is set at 20 megahertz, and a 10 uf tantalum capacitor and a 0.1 uf ceramic chip capacitor are connected in parallel at the test point. 3. The test point is close to the power supply output.

2.9 Output Load Dynamic Response

2.9.1 Output Dynamic Load Response
 

Output Voltage	Overshooting Range	Note	Recovery Time
+43.2~58Vdc	±5%	Load 25%~50%; 50%~75% Load shifts lope 0.1A/us Load jump frequency 50Hz~1kHz	≤200us

2.9.2 Output large dynamic response

 

Output Voltage	Overshooting Range	Note
+43.2~58Vdc	≤200mVp-p	Load 0% to 100%; 100%~0%

Note: The above specifications are satisfied at DC source input.


2.10 Output switching overshoot
 

Output Voltage	Overshoot Range	Note
+54.5V	<1 %	Rated input voltage range; Minimum load ~ Maximum load.

M48P
Monitors the power system operating status in real time ;
Detects and reports alarms in real time l
Supports multiple remote management modes.
Supports flexible rectifier and MPPT management. l
Supports effective energy conservation management. l
Supports comprehensive battery management. l
Supports intelligent temperature control management. l
Supports flexible and programmable logic control.
Supports detailed data records and performance statistics
Supports Control the voltage, current, boost and float status of rectifier module and MPPT module;
Supports Dry Contact ,Modbus RTU RS232&485 ; SNMP optional

Hybrid power cabinet drawing

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.

FSU

Built in 4G wireless communication module (optional, not included in standard version);
Support Ethernet transmission;
Multiple RS485 serial ports, connected to intelligent protocols such as switch power supplies, air conditioners, and battery BMS from multiple manufacturers; Multiple AI/DI/DO signal input/output interfaces;
Supporting multiple satellite systems: GPS, Beidou (optional, not included in the standard version);
Full port EMI, EMS, lightning surge protection;
-36 to -72VDC power supply;
1U standard chassis installation;
Support one click maintenance for mobile apps (optional, not included in the standard version);
Support local maintenance, firmware upgrades, and remote network upgrades;
Complies with the specifications of mobile and other operators, as well as the B interface dynamic environment platform and energy platform of Iron Tower Company.

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, Albaba assurance, West Union... Please contact us for more details.