UPS systems

World Class Power Solutions 

Internal power supply 

UPS mains operation 

UPS battery operation 

Bypass operation 

Parallel operation 

Manual bypass 

Overload 

Inverter failure 

Mains failure 

Battery voltage low 

ENERTRONIC L 

LED test 

UPS systems 

Range ENERTRONIC L

2 

BENNING World Class Power Solutions 

ENERTRONIC L 

absolutely safe and comfortable 

Highest security in conjunction with higher 

economy and highest comfort 

With the ENERTRONIC L BENNING has gone a step further 

towards safe and economical UPS technology. 

The ENERTRONIC L combines the highest reliability with 

optimum economy in today’s UPS technology. 

Due to continuous development, BENNING has succeeded in 

integrating new technologies into the UPS. IGBT transistors in 

the rectifier, SMD equipped printed circuit boards and internal 

CAN-Bus communications combine to offer the end user 

a safe and cost optimised solution for critical applications. 

The ENERTRONIC L with its sinusoidal input current ensures 

operation with very low harmonic distortion 

input current 

UPS with 6 puls 

Rectifier 

UPS with 12 puls 

Rectifier 

time 

ENERTRONIC L 

with IGBT 

rectifier 

Fig. 2: Input current flow 

Fig. 1: Internal view ENERTRONIC L 60 – 120 kVA 

General 

Increasing complexity in data centres presents higher demands 

on UPS systems. Nonlinear and unbalanced loads must be 

controlled just as effectively as peaks and overloads, caused 

by high start up currents. 

Critical applications have to be protected against not only 

mains failures, but also against voltage peaks and overvoltages. 

Design of UPS systems often forms part of building design 

and represents high investment with high operating costs. 

Therefore no compromise to security and economy of the UPS 

should be considered. 

The ENERTRONIC L fulfills these requirements by utilising new 

IGBT technology. 

The substantial advantages of the ENERTRONIC L 

• Sinusoidal input current, no reactive power consumed 

(THD _ 0,99) 

(see fig. 2) 

• On-line system (double conversion) 

• Classification VFI SS 111 in acc. IEC 62040-3 for 

protection of critical load against all types of line 

disturbance 

• Particularly suitable for computer loads 

(not linear loads) 

• Designed for double current in the neutral conductor 

• Suitable for 100 % unbalanced load 

• Parallel operation of up to 8 systems without SINGLE 

POINT OF FAILURE 

• Optimum utilization of emergency power generator


ENERTRONIC L 

cost-optimized security 

3 

Operating cost advantages due to the use of the 

newest IGBT technology 

Due to the use of IGBT power semiconductors for the rectifier 

and the inverter, the ENERTRONIC L operates nearly mains 

distortion free. (see fig. 2) 

Due to power factor correction in the rectifier (pf > 0,99) only 

active power is consumed, eliminating the need for reactive 

power compensation units and resulting in no charge for reactive 

power by the power supplier. Existing compensation units 

can naturally still be utilised. The cost of the ENERTRONIC L 

can be amortised in a few years. 

While supplying partial loads of 25 % the ENERTRONIC L 

offers outstanding power factor values of pf = 0,96. 

UPS systems with 12 pulse thyristor bridge rectifiers and 

active filters have difficulty achieving this result. 

A power factor pf > 0,99 reduces the apparent power (kVA) 

compared with conventional UPS’s with the same power 

output by approx. 20 % and therefore reduces the costs of 

input distribution. 

Security without compromise 

The ENERTRONIC L is a UPS fulfilling the highest requirements 

for the security of power supplies and is additionally 

particularly economical. A combination of 16-Bit micro-control 

supplied from two internal power supplies, and the most 

modern power electronics control, regulates and supervises 

all UPS functions with higher reliability. 

ENERTRONIC L is a genuine on-line UPS with double conversion 

and constant output voltage and frequency. In the case 

of power failure the load is supplied by the inverter and battery 

without interruption. Even with 100 % unbalanced load, 

the output will keep a very high voltage constant, in order not 

Fig. 3: ENERTRONIC L 200 kVA 

to endanger the supply to critical consumers. The quality of 

the output voltage is not affected by changes in load. Nonlinear 

loads, the predominant part of all EDP systems, produce 

high crest currents and these may be up to twice as high in 

the neutral conductor as in the phase conductors. The quality 

of the output voltage is not impaired with the triple rated 

current. Changeovers to bypass are therefore not necessary, 

ensuring full UPS protection at all times. 

The advantages of the ENERTRONIC L architecture 

• The ENERTRONIC L produces hardly any harmonics on 

the input when compared to UPS devices with conventional 

6 or 12-pulse thyristor bridge rectifiers. 

Consumers that are parallel to ENERTRONIC L on the 

same mains supply are therefore not impaired 

• If the ENERTRONIC L is to be used in conjunction with a 

Generator, this generator needs to be less over sized 

than with conventional UPS, since no power reserves 

need be considered to deal with harmonic load. 

Reliability is increased by a smaller number of components 

(higher MTBF) 

• No complex filter tuning needed 

• No losses by filter building groups 

• No resonant effects during generator operation caused 

by bad or wrongly co-ordinated filters 

• Increased reliability by minimising the number of 

internal interfaces and elements. The CAN bus system 

used internally is utilised in many safety – critical 

systems

4 


ENERTRONIC L 

powerful and compact 

Compact high performance 

Space-saving and weight are considerations which impact 

heavily on the total cost of a UPS. The ENERTRONIC L uses 

both the most modern technology and a specially developed 

high power heat sink to make it possible to concentrate the 

power electronics (120 kVA on 0,64 m 2 ). 

Great attention was paid to designing an easy to service 

structure, and maximising MTBF values. Fans are redundant, 

speed controlled and monitored and are located in the UPS 

air inlet (not effected by high exhaust air temperatures). 

Input and output circuit breakers in the UPS enable the unit 

to be completely isolated. 

All important components are accessible from the front. 

The upper power section containing the IGBT’s and the fan 

unit can be pulled out for maintenance purposes and/or 

exchanged completely. 

For maintenance purposes an internal manual bypass is 

included, which connects the load directly to the mains during 

service. 

Power section with control 

Fan unit (speed adjusted) 

Control fuses 

Circuit breakers and manual bypass 

Battery fuse breaker 

AC connecting terminals 

Fan unit (speed adjusted) 

Fig. 4: Interior structure of the ENERTRONIC L 60 -120 kVA 

Fig. 5: 

Display and 

control unit 

User friendly operation 

All necessary information is available on the front panel. 

This enables simple operation and all values are easily read. 

Internal power supply 

UPS mains operation 

UPS battery operation 

Bypass operation 


Manual bypass 

Overload 

Inverter failure 

Mains failure 

Battery voltage low 

LED test 

ENERTRONIC L 

• A mimic diagram containing 3-colour LED’s provides status 

indication and informs the user of the current operating 

condition of all important UPS components 

• Single colored LED’s clearly indicate the energy flow to the load 

• A backlit LC display with 4 lines and 80 characters shows 

additional information in plain language. All operating 

values are available via a menu 

• Password protection is provided to prevent inadvertent 

switching off 

• An event monitor records the last 1200 events. Complete 

documentation of date, time and message is provideded in 

plain language 

• This is configurable and can be customised 

• Remote interface available to monitor and adjust operating 

parameters 

The front panel indicates the following measured values: 

Rectifier: 

· Input voltage 

· Input current for each 

(phase/phase or 

phase 

phase/neutral) 

· Frequency 

Bypass: 

· Input voltage 

· Input current for each 


phase 


· Frequency 

Inverter: 

· Output voltage 



· Frequency 

Battery: 

· Voltage 

· Charge/discharge current 

· Output current for each 

phase 

· Output apparent power 

· Output active power 

· Remaining back up time 

· Remaining capacity

5 


ENERTRONIC L 

technical data 

Technical data 

ENERTRONIC L – 60, 80, 120, 160, 200 kVA 

Type 

ENERTRONIC L ENERTRONIC L ENERTRONIC L ENERTRONIC L ENERTRONIC L 

60 80 120 160 200 

rated output: [kVA] 60 80 120 160 200 

nominal active power: [kW] 48 64 96 128 160 

INPUT: 

nominal input voltage: [V] 400 ±15 %, 50 Hz ± 5 % 

current distortion factor: [%] ≤ 7 

power factor: ≥ 0,99 

soft start at mains recovery: 

over approx. 15 seconds 

OUTPUT 

rated voltage: [V] 400 

voltage tolerance: 

- static [%] < 1 

- with 100 % unbalanced load [%] < 1 

- with 100 % load step [%] < 5 

response time: [ms] ≤ 10 

rated frequency: [Hz] 50 ± 0,1 % 

distortion factor: 

- with linear load [%] < 1 

- with non linear load 

acc. EN 50091-1-1 

[%] < 5 

crest factor: ≥ 3 

overload: 

150 % for 60 seconds, 125 % for 10 minutes 

short circuit: 

300 % for 20 msecs, 260 % for 3 seconds 

Bypass 

overload: 

1000 % for 100 msecs, 150 % for 10 minutes 

General data 

overall efficiency: [%] 93 93 93 94 94 

power from the battery: [kW] 49,3 65,6 98,5 131,5 164,1 

EMC: EN50091-2 standard class A (optional class B) 

cooling: 

redundant, speed-controlled and monitored fans in UPS air inlet, 

equipped with individual ventilation flaps which close 

in case of fan failure and so avoid a flow short-circuit* 

ambient temperature: [°C] 0 to + 40 

relative humidity: [%] 5 to 95 non condensing 

installation height: [m] < 1000 m over absolute altitude without derating 

cabinet protection: 

IP 20 (higher protection optional) 

paint finish: 

RAL 7035, textured 

dimensions (H x W x D): [mm] 1800 x 800 x 800 1800 x 1000 x 800 

weight: [kg] 470 530 600 850 850 

cable entry: 

Cable entry from bottom, optionally from above with additional 200 mm side 

cabinet options: 

1 I/O card (12 dig. inputs., 6 dig. outputs, 6 relays); 

External service bypass in a separate cabinet; 

Battery cabinet or battery rack; 


(* 160 and 200 kVA units fans speed controlled and monitored only)


6 

ENERTRONIC L 

service 

Guarantee of highest battery availability 

The battery is an important and sensitive part of each UPS 

system. The condition of the battery is therefore constantly 

monitored by the microprocessor. 

• The temperature controlled battery charging voltage 

enables a long life span of the battery 

• The small current ripple from the rectifier in accordance 

with EUROBAT ensure the highest battery life time 

• The battery charging current limitation prevents heating up 

of the battery by excessive charging current 

• The internal battery disconnection activated at low voltage 

provides reliable protection against over-discharging 

• The cyclic battery test examines all battery connections 

• The battery monitor provides remaining battery capacity 

and determines the remaining back up time dependant on 

the actual load. When falling below a user selectable time 

a message is provided 

• For battery maintenance purposes and examination of 

battery capacity, a constant current discharge of the 

complete battery is possible, with the discharged energy 

fed back via the rectifier into the mains. 

The influence of age on the battery is therefore easily 

determined. 

This enables a maintenance strategy which was never 

possible in the past since discharging resistors and 

high wiring expenditure are no longer needed. This 

once again means cost optimization because maintenance 

can be achieved by a single technician 

Redundant systems and expansions are 

possible using 

The ENERTRONIC L which can be operated in parallel up to 

8 units with no external control (each UPS can take over the 

master rights; active and passive master). 

Increase of the UPS power with decentralized bypass (no single 

POINT OF failure) and the creation of redundant systems 

is easily done, even if unplanned. 

By using static transfer switches from BENNING two or more 

redundant power sources can be seamlessly provided. 

Service contracts 

Service contracts offered by BENNING ensure the highest 

security and availability to the operator of the ENERTRONIC L 

over the actual working time of the UPS plant. 

Basic Basic Advanced Advanced Premium Premium 

plus plus plus 

Carry out preventive maintenance • • • • • • 

Discounts available on spare parts, labour and 

travel costs 

• • 

Fully comprehensive cover, 

excluding batteries 

• • 

Free access to the 24/7 Hotline • • • • 

Guaranteed response time • • • • 

Battery capacity test • • •


ENERTRONIC L 

diagnosis and monitoring on-line 

7 

ENERTRONIC L on-line: 

Diagnosis and monitoring 

A special system enables remote diagnostics and monitoring 

with complete access to the system for fault-finding and 

repair. Many possibilities exist for both trained customer 

technicians and BENNING service personel to monitor event 

logs and real time data such as voltage, current, power and 

frequencies. 

The UPS can be configured to call for service automatically 

based on certain events. 

SNMP – Integration of the ENERTRONIC L into 

network management using 

The “Simple Network Management Protocol” (SNMP) is 

possible e.g. HP Openview, IBM Netview, Novell NMS and 

other SNMP compatible systems. 

UPSMON – Factory data capture and monitoring 

UPSMON is a complete information software package for 

monitoring and controlling of the ENERTRONIC L via serial 

interface, network or modem. 

It is able to monitor real time processing information and past 

events. The information can be represented in the form of 

individual building plans, electrical mimic diagrams or control 

elements of the devices. 

The DDE interface enables compatibility with standard applications 

such as data bases or spread-sheets for further 

processing. Simple and clear commands make the software 

an efficient tool even for the non-expert. 

UPSMAN – The automation of different actions 

permiting shutdown and monitoring 

UPSMAN allows the automation of different actions based on 

certain events. E.g. arranged shut down of individual personal 

computers over the network or broadcasting messages or 

e-mails e.g. battery undervoltage. 

UPSMAN is available for all usual operating systems. 

For detailed information refer to our CONNEXION leaflet. 

UPS communication - 3 possibilities: 

• System shutdown 

(local connection 

via relay contacts) 

• Shutdown and 

UPS management 

(local connection 

over RS232) 

alarm cable 

serial connection 

Shutdown batch 

(e.g. AS/400/WinNT) 

Shutdown routine and 

UPS Mgmt. over UM console 

• Shutdown and 

UPS management 

(SP/WAN - over 

LAN/WAN) 

serial connection 

Network connection 

over UM agent 

plus shutdown routine 

over UM client 

network 

Shutdown 

(UM client) 

UPS Mgmt. 

(UM console) 

Customer interfaces 

The following alarms are made available on the integrated 

relay card by 6 volt free change-over contacts ex factory: 

• Mains operation (mains OK) 

• Battery operation 

• Bypass operation 

• Manual bypass activated 

• Battery voltage low 

• Common alarm 

Serial interfaces RS232 and RS485 with MODBus protocol are 

available. An analogue output is available with 0 and/or 4 to 

20 mA, which can be programmed to represent an internal 

analogue value, e.g. output apparent power. 

A further relay card with 6 relays, a further interface card 

with a RS232 and RS485 interface and an additional Profibus 

interface or network interface (TCP/IP) can be added. 

Operating by remote control cable 

An optional remote control cable (max 900 meter) permits 

the monitoring and operation of the ENERTRONIC L with 

almost the same functionality as available via the front panel. 

The panel is connected to the RS485 interface in the 

ENERTRONIC L. 

Remote control 

For remote control the following functions are contained 

ex factory: 

• EMERGENCY Power OFF (EPO) 

• Generator operation (blocks the bypass) 

• Battery charging blocked (with generator operation) 

• Bypass ON 

• UPS remotely ON 

• UPS remotely OFF 

• Ext. Battery disconnecting switch open


www.benning.de 

BENNING worldwide 

Austria 

Benning GmbH Elektrotechnik und Elektronik 

Eduard-Klinger-Str. 9 

A-3423 St. Andrä-Wördern 

Tel. 0 22 42 / 3 24 16-0 

Fax 0 22 42 / 3 24 23 

E-Mail: info@benning.at 

Hungary 

Benning Kft. 

Power Electronics 

Rákóczi út 145 

H-2541 Lábatlan 

Tel. 033/507600 

Fax 033/507601 

E-Mail: benning@vnet.hu 

South East Asia 

Benning Power Electronics Pte Ltd 

1, Kaki Bukit View 

# 05-03/04 Techview 

SGP-Singapore 415941 

Tel. (65) 6844 3133 

Fax (65) 6844 3279 

E-Mail: sales@benning.com.sg 

Belarus 

Benning IOOO 

ul. Sovetskaja 95-46 

BY-224030 Brest 

Tel. 0162 / 21 87 60 

Fax 0162 / 21 87 60 

E-Mail: info@benning.brest.by 

Ireland 

Theo Benning GmbH 

North Industrial Estate 

Whitemill North 

IRE-Wexford / Rep. Ireland 

Tel. 0 53 / 76 90 0 

Fax 053/41841 

E-Mail: benning@benning.ie 

Sweden 

Eldaco AB 

Box 990, Hovslagarev. 3B 

S-19129 Sollentuna 

Tel. 08 / 6239500 

Fax 08 / 969772 

E-Mail: power@eldaco.se 

Belgium 

Benning Belgium 


Z. 2 Essenestraat 16 

B-1740 Ternat 

Tel. 02 / 58 287 85 

Fax 02 / 58 287 69 

E-Mail: info@benning.be 

Italy 

Benning Conversione di Energia S.r.L 

Via 2 Giugno 1946, 8/B 

I-40033 Casalecchio di Reno (BO) 

Tel. 0 51 / 75 88 00 

Fax 0 51 / 61 67 655 

E-Mail: benning.energia@libero.it 

Switzerland 

Benning Power Electronics GmbH 

Industriestrasse 6 

CH-8305 Dietlikon 

Tel. 044 / 8057575 

Fax 044 / 8057580 

E-Mail: info@benning.ch 

Croatia 

Benning Zagreb 

Hrvatska 

Zeleni trg 3 b 

HR-10000 Zagreb 

Tel. 1 / 61 97 059 

Fax 1/6197060 

E-Mail: benning.zg@zg.t-com.hr 

Netherlands 

Benning NL 


Peppelkade 42 

NL-3992 AK Houten 

Tel. 030/6346010 

Fax 0 30 / 6 34 60 20 

E-Mail: info@benning.nl 

Spain 

Benning Conversión de Energía S.A. 

C/Pico de Santa Catalina 2 

Pol. Ind. Los Linares 

E-28970 Humanes, Madrid 

Tel. 91/ 6048110 

Fax 91/ 6048402 

E-Mail: benning@benning.es 

ISO 14001 

Czech Republic 

Benning CR s.r.o. 

Zahradní ul. 894 

CZ-293 06 Kosmonosy 

(Mladá Boleslav) 

Tel. 326721003 

Fax 3 26 72 25 33 

E-Mail: benning@benning.cz 

France 

Benning Conversion d’énergie 

43, avenue Winston Churchill 

B.P. 418 

F-27404 Louviers Cedex 

Tél. 0 / 2.32.25.23.94 

Fax 0 / 2.32.25.08.64 

E-Mail: info@benning.fr 

Germany 

Theo Benning 

Elektrotechnik und Elektronik GmbH & Co.KG 

Münsterstr. 135-137 

D-46397 Bocholt 

Tel. 0 28 71/ 93-0 

Fax 02871/93297 

E-Mail: info@benning.de 

Great-Britain 

Benning Power Electronics (UK) Ltd. 

Oakley House 

Hogwood Lane 

Finchampstead 

GB-Berkshire 

RG 40 4QW 

Tel. 0118 9731506 

Fax 0118 9731508 

E-Mail: info@benninguk.com 

Poland 

Benning Power Electronics Sp.z.o.o. 

Korczunkowa 30 

PL-05-503 Glosków 

Tel. 0 22 / 7 57 84 53 / 7 57 36 68-70 

Fax 0 22 / 7 57 84 52 

E-Mail: biuro@benning.biz 

P. R. of China 

Benning Power Electronics (Beijing) Co., Ltd. 

Tongzhou Industrial Development Zone 

No. 1 Beier Str. 

PRC-101113 Beijing 

Tel. 10 69574995 

Fax 10 69574996 

E-Mail: info@benning.cn 

Russian Federation 

OOO Benning Power Electronics 

Scholkovskoje Chaussee, 5 

RF-105122 Moscow 

Tel. 095/9676850 

Fax 0 95 / 9 67 68 51 

E-Mail: benning@benning.ru 

Slovakia 

Benning Slovensko, s.r.o. 

Kukuričná 17 

SK-83103 Bratislava 

Tel. 02 / 44459942 

Fax 02 / 44455005 

E-Mail: benning@benning.sk 

Ukraine 

Benning 

ul. Solomenskaja, 3B 

UA-03110 Kiew 

Tel. 044 / 246 10 25 

Fax 044 / 248 92 36 

E-Mail: benning@benning.com.ua 

U.S.A. 

Benning Power Electronics, Inc. 

11120 Grader Street 

USA-Dallas, TX 75238 

Tel. 214 5531444 

Fax 214 5531355 

E-Mail: sales@benning.us 

784385.00 GB 08/2005 paus Design & Medien, Bocholt Subject to alterations. Printed on chlorine free paper.

UPS systems

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?