UPS

 

UPS

 

Sepahan method electronic is able to design & manufacture high power industrial online Uninterruptable Power Supplies (UPS) up to 500KVA power. All stages is done by our experts, so various features can be add according to customer request.

 

 

 


General UPSs

  

 

 

LINE INTERACTIVE UPS

 

The line interactive UPS, illustrated in Figure in front, is the most common design used for small size of UPS in the market for use for comuter server and home ups. In this type, the battery-to-AC power converter (inverter) is always connected to the output of the UPS. Operating the inverter in reverse during times when the input AC power is normal provides battery charging. When the input power fails, the transfer switch opens and the power flows from the battery to the UPS output. With the inverter always on and connected to the output, this design provides additional filtering and yields reduced switching transients when compared with the standby UPS topology. In addition, the line interactive design usually incorporates a tap-changing transformer. This adds voltage regulation by adjusting transformer taps as the input voltage varies. Voltage regulation is an important feature when low voltage conditions exist, otherwise the UPS would transfer to battery and then eventually down the load. This more frequent battery usage can cause premature battery failure. However, the inverter can also be designed such that its failure will still permit power flow from the AC input to the output, which eliminates the potential of single point failure and effectively provides for two independent power paths. High efficiency, small size, low cost and high reliability coupled with the ability to correct low or high line voltage conditions make this the dominant type of UPS in the 0.5-5 kVA power range.

 

 

 

 

 

STAND BY FERRO UPS

 

The standby-ferro UPS The standby-ferro UPS was once the dominant form of UPS in the 3-15 kVA range. This design depends on a special saturating transformer that has three windings (power connections). The primary power path is from AC input, through a transfer switch, through the transformer, and to the output. In the case of a power failure, the transfer switch is opened, and the inverter picks up the output load. In the standby-ferro design, the inverter is in the standby mode, and is energized when the input power fails and the transfer switch is opened. The transformer has a special "ferroresonant" capability, which provides limited voltage regulation and output waveform "shaping". The isolation from AC power transients provided by the ferro transformer is as good as or better than any filter available. But the ferro transformer itself creates severe output voltage distortion and transients, which can be worse than a poor AC connection. Even though it is a standby UPS by design, the standby-ferro generates a great deal of heat because the ferro-resonant transformer is inherently inefficient. These transformers are also large relative to regular isolation transformers; so standby-ferro UPS are generally quite large and heavy. Figure 2 Line interactive UPS The Different Types of UPS Systems Schneider Electric – Data Center Science Center White Paper 1 Rev 7 4 Standby-ferro UPS systems are frequently represented as on-line units, even though they have a transfer switch, the inverter operates in the standby mode, and they exhibit a transfer characteristic during an AC power failure. Figure 3 illustrates this standby-ferro topology.

   

 

   

 

 

DOUBLE CONVERSION ONLIE UPS

 

In double conversion type ups the primary source will be rectified to dc bus which is connected to the batteries and then from dc bus the power should convert to Ac by the proper inverter and will transfer to out directly or through transformer and by passing through transfer switch ,in this case the failure of the input AC or any interruption does not affect on the load because any interruption such as frailer or big variation will compensate by batteries ,and clearly during normal condition if happened any over load or short circuit in the load the transformer switch which one is connected to bypass line or primary source will intervene and therefore without any interruption inverter will protect from overload or short circuit and the main source will be able to remove the case  and do in to function main circuit as before ,Double Conversion On-Line UPS should be design specially for industrial us as the full galvanic isolatedby means of power transformer in input and output of UPS.

 

 

 

 

 

 

 

DOUBLE CONVERSION GALVANIC ISOLATED ONLIE UPS

 

As descibed before the double conversion ups ,the input power performed in to dc power in order eliminate any fault and intrrupt and put together with batteries for making the safe and sufficent energy in dc bus and then in the  inverter part this energy will convert to ac and deliver to load by means of transfer switch. In the double convesion galvanic isolated will use the  proper power transformer in order to isolate galvaniclly output from input. this type of ups is more expensive respect of other types and will be use for important part of industry .

 

 

 

 

DELTA CONVERSION ONLIE UPS

 

This UPS design, illustrated in Figure 5, is a newer, 10 year old technology introduced to eliminate the drawbacks of the double conversion on-line design and is available in sizes ranging from 5 kVA to 1.6 MW. Similar to the double conversion on-line design, the delta conversion on-line UPS always has the inverter supplying the load voltage. However, the additional delta converter also contributes power to the inverter output. Under conditions of AC failure or disturbances, this design exhibits behavior identical to the double conversion on-line. Figure 4 Double conversion on-line UPS The Different Types of UPS Systems Schneider Electric – Data Center Science Center White Paper 1 Rev 7 6 DELTA CONVERTER MAIN INVERTER AC DC DC AC STATIC BYPASS SWITCH DELTA TRANSFORMER ` A simple way to understand the energy efficiency of the delta conversion topology is to consider the energy required to deliver a package from the 4th floor to the 5th floor of a building as shown in Figure 6. Delta conversion technology saves energy by carrying the package only the difference (delta) between the starting and ending points. The double conversion on-line UPS converts the power to the battery and back again whereas the delta converter moves components of the power from input to the output.

 

  

 

 

 


Design Samples


MPSU-150

 

 

INPUT DATA :

 

 

Rated Voltage :

380 - 230 Volt    3Phase    ±15%

Rated Frequency :

50 Hz    ±5%

 

OUTPUT DATA :

Rated Voltage :

 220/380 V   1/3Phase ±2%

Voltage Regulation :

static : ±1%

dynamic : ±5%

Rated Frequency :

 50 Hz

Frequency Regulation :

operating with main : ±0.5%

operating with battery : ±0.0001

Over Load Capacity :

125% for 15 & 150% for 1"

Starting Power :

200% for 100 ms

Total Harmonic Distortion (THD) :

<3% (optional 1% with derating of power)

Max Unbalanced Load :

<30%

Efficiency :

>85%

 

DC BUS & BATTERIES :

Batteries Voltage :

120 , 240 , 360 Volt

Charging unit :

Trough main rectifier & Filters

Charging method :

Constant current,Constant voltage

 

SYSTEM DATA :

Protection Class :

IP20

Operating Temperature :

0 - 40° C

Relative Humidity :

0 - 95%

Noise Level :

<40 dB

Paralleling :

Up to 4 units

Autonomy :

On request

Batteries :

Seald , Lead acid , Ni - Cd

MTBF :

>100,000 h

 

 

 

BATTERIES:

 

Batteries Fuse protected

Seald , Lead - acid or Nikel - cadmium

 

BY PASS LINE:

Network circuit breaker

By pass Isolated by transformer

Static switch Module-net

     

 

 

Maintenance by pass switch

AVR ( option)

 

INDICATORS:

Input Voltage

Input Current

Output Voltage

Output Current

Output frequency

DC Voltage

Charging Current 

 

*All above metering should bewith classic analoge meter or led Display 

 

ALARMS: 

Under - Over network 

Output Fault 

OPTION:  

Overload 

paralleling Devices 

 

Short Circuit 

SNMP CARDS 

 

Synchrony Fault 

RS232/RS485 Interface 

 

Battery Running Down 

 

 

Earth Fault 

 

 

 

*All above alarm should be as with   special alarm display or lighting announcment panel as the option 

 

 

 

 

 

MPSU-500 

 

INPUT DATA :

 

 

Rated Voltage :

400 Volt    3Phase    ±15%

Rated Frequency :

50-60 Hz    ±5%

 

OUTPUT DATA :

 

Rated Voltage :

 380 V   1/3Phase ±2%

Voltage Regulation :

static : ±1%

dynamic : ±5%

Rated Frequency :

 50 - 60 Hz

Frequency Regulation :

operating with main : ±0.5%

operating with battery : ±0.0001

Over Load Capacity :

125% for 15 & 150% for 1"

Starting Power :

200% for 100 ms

Total Harmonic Distortion (THD) :

<3% (optional 1% with derating of power)

Max Unbalanced Load :

<20%

Efficiency :

>90%

 

DC BUS & BATTERIES :

 

Batteries Voltage :

360 -432 Volt

Charging unit :

Using separate charger

Charging method :

Constant current,Constant voltage

 

 

 

SYSTEM DATA :

 

Protection Class : 

 IP20

Operating Temperature : 

 0 - 40° C

Relative Humidity : 

 0 - 95%

Noise Level :

 <40 dB

Paralleling :

Up to 4 units

Autonomy :

On request

Batteries :

Seald , Lead acid , Ni - Cd

MTBF :

>100,000 h

 

 

BATTERIES:

INDICATORS:

 INVERTER:

Batteries Fuse protected

Input Voltage

 Input circuit breaker

Seald , Lead - acid or Nikel - cadmium

Input Current & voltage & Freq.

 Heavy duty IGBTs module

 

BY PASS LINE:

Output Current & Voltage & Freq.

 Output transformer

Batteries Voltage

 Output AC filter

Network circuit breaker

Batteries Charging current

 STATIC SWITCH Module-inv

Network-input inductance

UPS Situation MIMIC

 

Static switch Module-net

The MPS Series consist of : 

Maintenance by pass switch

RECTIFIER: 

AVR ( option)

EMI  filter

 

Input circuit breaker 

ALARMS on Mimic panel:

Thyristor 6 pulse Rectifier bridge

Under - Over network

DC filter(3% ripple with &without batteries)

 Output Fault

 

 Overload

OPTION:

Short Circuit

paralleling Devices

 Synchrony Fault

SNMP CARDS

 Battery Running Down

 RS232/RS485 Interface

 Earth Fault (optional)

 

 *For detail please refer to Alarm panel

 

 

 

 

 

 

SMPS-50 

 

INPUT DATA :

Rated Voltage :

380 Volt    3Phase    ±15%

Rated Frequency :

50-60 Hz    ±5%

 

OUTPUT DATA :

 

Output Power :

5, 10, 15, 20, 30, 50 KVA

Rated Voltage :

 380 V   1/3Phase ±2%

Rated Frequency :

50 - 60 Hz

Frequency Regulation :

operating with main : ±0.5%

operating with battery : ±0.0001

Over Load Capacity :

125% for 15" & 150% for 1"

Starting Power :

200% for 100 ms

Total Harmonic Distortion (THD) :

<3% (optional 1% with derating of power)

Max Unbalanced Load :

<20%

Eiffciency :

>89%

 

DC BUS & BATTERIES :

 

Batteries Voltage :

24 -120 Volt

Charging unit :

Using separate charger

Charging method :

Constant current,Constant voltage

 

 

SYSTEM DATA :

 

ALARMS on Mimic panel:

Protection Class : 

IP20

Under - Over network

Operating Temperature : 

0 - 40° C

Output Fault

Relative Humidity : 

0 - 95%

Overload

Noise Level :

<40 dB

Short Circuit

Paralleling :

Up to 4 units

Synchrony Fault

Autonomy :

On request

Battery Running Down

Batteries :

Seald , Lead acid , Ni - Cd

Earth Fault (optional)

MTBF :

>100,000 h

*For detail please refer to Alarm panel

 

 

BATTERIES:

INDICATORS:

 INVERTER:

Batteries Fuse protected

Input Voltage

Input Isolator switch

SEPARATE BATTERIES CHARGER

Input Current & voltage & Freq.

Heavy duty IGBTs module

BATTERIES BLOCKING THYRISTORS

Output Current & Voltage & Freq.

Output AC filter

Seald , Lead - acid or Nikel - cadmium

Batteries Voltage

STATIC SWITCH Module-inv

 

BY PASS LINE:

Batteries Charging current

 

UPS Situation MIMIC

 The SMPS-50 ONLINE UPS Series consist of : 

Network circuit breaker

RECTIFIER: 

Network-input inductance

EMI  filter

Static switch Module-net

Input circuit breaker

 

Input Inductance

 BUCK BUST:

Diode base Rectifier bridge

 Buck boost Inductances

 

 Buck boost IGBTs

OPTION:

 Blocking diodes

SNMP CARDS

 Capacitors bank

RS232/RS485 Interface

 

 

 

 

SMPS-1-20 

 

INPUT DATA :

Rated Voltage :

380 Volt    3Phase    ±15%

Rated Frequency :

50-60 Hz    ±5%

 

OUTPUT DATA :

 

Output Power :

5, 10, 15, 20 KVA

Rated Voltage :

 380 V   1Phase ±2%

Rated Frequency :

50 - 60 Hz

Over Load Capacity :

125% for 15" & 150% for 1"

Starting Power :

200% for 100 ms

Total Harmonic Distortion (THD) :

<3% (optional 1% with derating of power)

Eiffciency :

>92%

 

DC BUS & BATTERIES :

 

Batteries Voltage :

24 to 120 Volt

Charging unit :

Using separate charger

Charging method :

Constant current,Constant voltage

 

 

SYSTEM DATA :

 

ALARMS on Mimic panel:

Protection Class : 

IP20

Under - Over network

Operating Temperature : 

0 - 40° C

Output Fault

Relative Humidity : 

0 - 95%

Overload

Noise Level :

<40 dB

Short Circuit

Autonomy :

50, 100, 150 AH

Synchrony Fault

Batteries :

Dry acid

Battery Running Down

MTBF :

>100,000 h

Earth Fault (optional)

 

 

*For detail please refer to Alarm panel

 

BATTERIES:

INDICATORS:

INVERTER:

Batteries Fuse protected

Input Voltage

Heavy duty IGBTs module

SEPARATE BATTERIES CHARGER

Input Current & voltage & Freq.

Output AC filter

BATTERIES BLOCKING THYRISTORS

Output Current & Voltage & Freq.

STATIC SWITCH Module-inv

Seald , Lead - acid or Nikel - cadmium

Batteries Voltage

 

 

BY PASS LINE:

Batteries Charging current

 

UPS Situation MIMIC

 The SMPS-1-20 ONLINE UPS Series consist of : 

Network circuit braker

RECTIFIER: 

Network-input inductance

 Input circuit breaker

Static switch Module-net

Input Filter

 

Diode base Rectifier bridge

 BUCK BUST:

 

 Buck boost Inductances

OPTION:

 Buck boost IGBTs

SNMP CARDS

 Blocking diodes

RS232/RS485 Interface

 Capacitors bank

 

 

 

 

 

MPSU-2X150 

 

INPUT DATA :

 

   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Rated Voltage :

380-230 Volt    3Phase    ±15%

Rated Frequency :

50    ±5%

 

OUTPUT DATA :

 

Rated Voltage :

220/380 V   1/3Phase ±2%

Voltage Regulation :

static : ±1%

Dynamic : ±5%

Rated Frequency :

50 Hz

Frequency Regulation :

operating with main : ±0.5%

operating with battery : ±0.0001

Over Load Capacity :

125% for 15" & 150% for 1"

Starting Power :

200% for 100 ms

Total Harmonic Distortion (THD) :

<3% (optional 1% with derating of power)

Max Unbalanced Load :

<30%

Eiffciency :

>85%

 

DC BUS & BATTERIES :

 

Batteries Voltage :

120, 240, 360 Volt

Charging unit :

Through main rectifier & Filters

Charging method :

Constant current,Constant voltage

 

 

SYSTEM DATA :

 

ALARMS:

Protection Class : 

IP20

Under - Over network

Operating Temperature : 

0 - 40° C

Output Fault

Relative Humidity : 

0 - 95%

Overload

Noise Level :

<40 dB

Short Circuit

Paralleling :

Up to 4 units

Synchrony Fault

Autonomy :

On request

Battery Running Down

Batteries :

Seald , Lead acid , Ni - Cd

Earth Fault

MTBF :

>100,000 h

*All above alarm should be as with special alarm display or lighting announcment panel as the option

 

 

BATTERIES:

INDICATORS:

 INVERTER:

Batteries Fuse protected

Input Voltage

Input circuit breaker

Seald , Lead - acid or Nikel - cadmium

Input Current

Heavy duty IGBTs module

 

Output Voltage

Output transformer

 BY PASS LINE:

Output Current

Output AC filter

Network circuit breaker

Output frequency

STATIC SWITCH Module-inv

By pass Isolated by transformer

DC Voltage

   

Static switch Module-net

Charging Current

Maintenace by pass switch

*All above metering should be with classic analoge meter or led Display

AVR ( option )

 

The MPS Series consist of :

RECTIFIER: 

 EMI  filter OPTION:

Input circuit breaker

Paralleling Devices

 Thyristor 6 pulse Rectifier bridge NMP CARDS
 DC filter (3% ripple with & without batteries) RS232/RS485 Interface