powerful uninterruptible power supply with AVR / Enclosures, PSU and cooling

Solutions of the Ippon Smart Power Pro II series are built on a line-interactive topology, that is, in addition to their main function – uninterruptible power supply from the battery, they stabilize the voltage when the input parameters deviate in a certain range without switching to the battery. UPSs are designed for full power from 1200 VA, and in practice we have to study the older model, designed for 2200 V·And loads.


#Specifications, price

The Smart Power Pro II line is represented by devices with a total power of 1200, 1600 and 2200 V·A or active power of 720, 960 and 1200 W, respectively. The key function of these UPSs is a stepped AVR, which, according to the passport data, turns on when the voltage in the network drops below 192 V or exceeds 242 V. In addition, Smart Power Pro II protects consumers (as well as the local network or telephone line) from impulse overvoltage and electromagnetic interference.

A cold start is possible, that is, switching on on batteries without external power. The batteries themselves are designed for a capacity of 7 or 9 Ah – depending on the power of the device. The offline waveform is a modified sine wave.

Manufacturer IPPON
Model Smart Power Pro II 2200
Topology Line Interactive
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Full power 2200 V·A
Active power 1200 W
Rated voltage 220 V
Voltage stability ±10 %
Rated frequency 50/60 Hz
Frequency stability ±1 Hz
Voltage shape Approximate sine wave
Switching time 4-8ms, max. 10 ms
Battery powered connectors IEC 320 C13, 4 pcs.
Protected connectors IEC 320 C13, 2 pcs.
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Rated voltage 220 V
Voltage range 162-290 V
Frequency range 45-65 Hz
Power connector IEC C14 / Schuko CEE 7/7P
Batteries
Type Maintenance free sealed lead acid
Installed 12V/9 Ah, 2 pcs.
PC battery life with 17″ monitor 42.4 min
Battery life at 30% load 12.8 min
Battery life at 50% load 5.5 min
Battery life at 70% load 2.1 min
Battery life at 100% load 1 min
Charging time from full discharge state 4 hours to 90% charge
Protection and filtering
Against short circuit Circuit breaker
Against overload in line mode When the load is > 110%, it will turn off after 5 minutes; at > 120% – it will turn off immediately.
Against overload in battery mode At load> 110% – turns off after 5 seconds; at > 120% – it will turn off immediately.
From deep battery discharge There are no restrictions on the minimum load and battery life.
Computer network or telephone line RJ-45 port
Automatic Voltage Regulator (AVR) at Uin > 242 V Uout=0.85xUin; at Uin < 192 V Uout=1.18xUin.
From high voltage surges 125 J
efficiency
In line mode > 95 %
In AVR mode > 88 %
Means of communication, management and administration
USB charging for mobile devices USB Type-A, 2 pcs. (5 V / 1.8 A)
PC connection USB Type-B; RS-232
Physical characteristics and properties
Dimensions W × H × G, mm 139 × 195 × 364 mm
Net mass 11.1 kg
Cooling Forced
Noise level < 45 дБ
Degree of protection of the shell IP20
Operating conditions
Temperature range 0-40 °C
Relative Humidity Range 0-95% (non-condensing)
Altitude range 0-3000 m
Food conditions
Temperature range From -15 to +50 °C
Relative Humidity Range 0-95% (non-condensing)
Height above sea level 0-15,000 m
Retail price From 17 803 rub. (market.yandex.ru)

Each Smart Power Pro II model is equipped with household Euro sockets (Schuko CEE 7), as indicated by the word Euro in the title, or IEC 320 C13 sockets. At the same time, Euroversions are slightly more expensive than analogues. So, 1200 VA UPSs during the period of work on the review were available for an amount of 12.5 or 13.2 thousand rubles. respectively, and the top ones for 2200 V·A – 17.8 or 18 thousand rubles.

#Appearance, delivery set

The UPSs of this series are assembled in black plastic cases with a spartan design. The front panel has an indicator display with a bright blue backlight, which shows all the main parameters of the device: input and output voltage, power supply mode (direct, via AVR or standalone), load value (unfortunately, in fractional terms, not watts) and battery charge. The transition to the state of AVR, battery power or overload is accompanied by a loud sound signal, which can only be turned off from a computer using proprietary software.

The only mechanical control is the power button. There are also two USB Type-A charging ports with a voltage of 5 V and a current of 1.8 A (high-speed charging protocols provided by the new USB specifications are not supported).

Smart Power Pro II products marked with Euro are equipped with Euro sockets, and the rest are equipped with compact IEC 320 C13 connectors. In the first case, there are only four outputs for connecting the load, and the power cable is non-removable. Euro models also have a reusable fuse with a rating of 10 or 15 A at the input, depending on the power.

UPSs with C13 connectors have a pair of additional surge and EMI protected bypass outputs and a detachable input cable. The same bypass is provided for RJ-45 connectors in all modifications of Smart Power Pro II. The primary means of communication with a computer is a USB Type-B port, but models with C13 receptacles also have an RS-232 port added.

It is important that 1200 V devices·And they are content with passive cooling, and the only source of a very quiet sound is the voltage regulator transformer. The insides of more serious models for 1600 and 2200 V·A blows a loud 60mm exhaust fan that turns on immediately in AVR mode.

The UPS with C13 connectors includes two of these load cables, an input cable and a USB cable. There is no software disc in the box, you will have to download it from the Ippon website.

#Internal organization

Smart Power Pro II 2200 is easy to disassemble for maintenance or repair: just remove five screws from the bottom, and the top of the casing is removed entirely along with the control panel.

The entire power section of the UPS electronics is located on a single printed circuit board. To cool the transistors of the inverter are massive aluminum blanks, devoid of additional fins. The electrolytic capacitors for the Smart Power Pro II 2200 are made by AiSHi, a solid second-tier manufacturer.

The UPS is equipped with two 12 V lead-acid batteries with a nominal capacity of 9 Ah, connected in series.

There are no complaints about the switching of the socket block. With the help of a varistor and an X-capacitor, the outputs are protected against surge voltage and electromagnetic interference.

#Software

To configure and control the parameters of the Ippon Smart Power Pro II series UPS, the Ippon WinPower utility is used, the capabilities of which we have already detailed. In addition to Windows, the software is compatible with a wide range of other operating systems: Linux, Sun Solaris, IBM AIX, HP-UX, FreeBSD and macOS. However, it is not necessary to use WinPower to control the basic functions of the device. The UPS supports the USB Smart Battery standard, thanks to which the operating system itself detects an additional battery, allows you to monitor the charge level and perform a number of automated actions – such as shutting down, alerting the user, etc. And most importantly, using WinPower, you can turn off the loud sound signal, which emits the UPS offline, but for this the program must be running constantly.

#Test Methodology

We used a load stand for power supplies with a power supply connected to it via a UPS Chieftec Polaris 850W to create a clearly dosed load on the UPS. The FNEX TDGC2-2K LATR was used to measure the AVR operation parameters and the voltages at which the switch to battery power occurs, and the Aktakom ASK-3106 USB oscilloscope was used to measure the output signal waveform.

#Test results

Since the Smart Power Pro II 2200 UPS is equipped with a step AVR, input voltage deviation within certain limits is compensated without switching to battery power. In our tests, the lower threshold of the AVR was 194 V, and the upper threshold was 242 V. The output voltage in such conditions is 230 and 205 V, respectively. As a result, both the adjustment range and the applied coefficients (1.18 for increase and 0.85 for decrease) correspond quite accurately to the passport data of the device.

The minimum voltage in the network at which the battery is activated is 162 V, and the output voltage in offline mode is 215 V. We did not reach the upper threshold for switching to autonomous power due to the LATR limitation (250 V).

In terms of waveform, the UPS outputs almost a square wave at no load, but under a load of a few hundred watts, a rough approximation of a sine wave appears. Note: fluctuations in the rise and fall of the signal are caused by the capacitance of the oscilloscope probe we use.

Waveform without load

High load waveform

#findings

The key characteristic of the Ippon Smart Power Pro II 2200 is its solid power by the standards of SOHO and home appliances – 2200 V·A or 1200 watts. Together with the high capacity of the battery, it provides the necessary autonomy for the correct shutdown, even if a powerful gaming PC or workstation is connected to the UPS. And thanks to the Smart Battery standard, this process is easy to automate. We also note that the products of this series do not have any eco mode, which means that they continue to work even at very low load – for example, from home network equipment.

Thanks to the AVR function, the device automatically adjusts the output voltage when the voltage in the outlet drops below 194 V or exceeds 242 V. The declared step adjustment factors are quite consistent with the actual parameters. The waveform is an approximate sine wave acceptable for modern switching power supplies.

All representatives of the Smart Power Pro II line are available in cases with Euro sockets (models marked Euro) or compact IEC 320 C13 connectors. The latter option is more advanced, as it has a detachable power cable, a couple of additional output connectors with bypass, and an RS-232 port. At the same time, we note that all modifications are more powerful than 1200 V·And (720 W) require active cooling and, accordingly, are noisy in AVR mode.

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