Electrical System Multiple Monitoring Zero Switch Full Digital Control UPS 10 - 100kVA

                           CND310 Series UPS Electricity Special UPS

The CND310 series Electricity Special UPS system consists of system cabinet, DBW bypass stabilized cabinet, and PDU feeder cabinet. CONSNANT designs exclusively for power plant, transformer substation, and distribution substation according to the development requirement of China Power. It possesses on-line double conversion and zero transfer function.
It can be mainly applied for power system telemechanics, PTU, power line carrier, power system monitoring and so on. After being isolated and filtered by regulator, Single-phase 220V or three-phase 380V can provide stable power for load through inverter when the AC is normal. If the failure of AC power grid supply or a power cut occurs, the backup of DC power system can invert to supply electricity through the reverse diode. If the DC Power System is under voltage or cut off, the static switch will turn to bypass automatically. When the AC power is recover, the static switch will turn to AC power automatically. If the inverter is overloaded or fault, the system will turn to bypass and indicates a warning signal at the same time.


Key Features:

1. Adopt full digital control technology
2. Intelligent detection and monitoring function
3. Digitally control the static switch with zero switch
4. Full isolation between input and output
5. Super low output zero earth voltage
6. DC UPS isolated with utility power completely
7. Cubical design with power standard (customization)
8. Multifunctional protection for overvoltage, under voltage, over current, short circuit and over temperature and so on.
9. Large-screen LCD monitor with Chinese and English operation interface
10. Ultralong 256 event record, user-friendly analysis and management to the situation of the power supply (touch screen optional)
11. Static bypass has a strong anti-overload capability
 

Control system

It adopts microprocessor bus control technology, three core processor controlling rectification, inversion and parallel connection respectively, to ensure the real-time control of the rectifier, inverter and static switch and the coordination of every power part, characterized by increased control of aging, higher reliability, enhance of the efficiency of the whole UPS system and the output technical parameters are better than that of the device with same capacity.
 
Rectifier

6 pulse or 12 pulse fully controlled bridge (6  or 12 SCR) compose rectifier. Its function is to input AC 3880V to DC220V or so by rectification. "slope" start (soft start) is the control feature, which means output voltage of the rectifier increase from 0V to 220V within 10 second and has no impact on the power grid.
 
Inverter

SPWM(sinusoidal pulse width modulation) , formed by 6 IBGT high power tubes, is composed of full-bridge-control. Its function is to transform DC voltage into sinusoidal AC voltage, boosting by the special (△/Y) zero phase shift zigzag type isolation transformer and become AC220V as load required. In addition, the transformer can eliminate like triple harmonics current that are reflected by non linear load from computer. Control features is the adoption of the "slow-down gate voltage" protection technology, greatly reducing disturbance of shutoff of the inverter (inverter and static switch shift mutually ), enhancing the overload capacity of the whole UPS system, which make the capability of anti-short circuit and anti overload of UPS far superior to the ordinary UPS, especially the anti shot circuit is unmatched by similar devices.



Large Capacity of Overload of the UPS Inverter

110% load --60'
125% load --10'
150% load --1'
200% single phase load --30"
Good Capacity of Resistance to Output Short Circuit Current Limiting and Period Load Impact
Advantages:
290% rated current -- 5": Even though a output short circuit or an overload occurs because of user's improper operation, the output current of UPS can still be limited to a controllable extent instead of exceedingly increasing, consequently laying a good foundation for a long-term and reliable operation of UPS.
 
 
Static switch:

Not sync automatically switch:
When the bypass of the UPS lose sync with the inverter, system can automatically implement not sync switch, for example, when the utility power surge pulse width <5ms, the system can ensure no power cutoff.
When the bypass exceed the limitation, UPS will detect the bypass every 20ms, when the phase angle difference of bypass and the inverter turn to normal range, not synchronized bypass shifting can be realized.
 
 
Optional bypass cabinet:

Isolating transformer and the bypass voltage regulation


 
Intelligent monitoring

Working status and data of UPS are transmitted to DCS system in real-time via RS232/RS485, passive contact and power transmitter, which finally realize Intelligent monitoring.
 
Unique option:

SNMP card
Dry contact card
Signal transmitter
Bypass isolation and voltage regulation
Increase feeder circuit (standard for 8 loops)
12 pulse rectifier
The appearance of special models(standard dimension:800×600×2260mm)
 

Specifications:
 

CND310 10KVA-100KVA

Model Number

10KVA     15KVA    20KVA    30KVA    40KVA    50KVA     60KVA    80KVA     100KVA

Rating capacity

8KW     12KW    16KW    24KW   32KW   40KW    48KW    64KW    80KW

Rating voltage

220VAC Single Phase(6-20KVA)/380VAC Three Phase

AC input

Voltage range

±25%

Frequency range

50/60Hz±10%

Soft start

0-100% in 5"

Power factor

0.95(with input filter)

Bypass input

Permitted voltage range

±15%

Frequency range

50/60Hz±5%

Output

Voltage accuracy

220V±1%(steady load) 220V±3%( fluctuating load)

Permitted Frequency range

50/60Hz±0.05Hz(powered by battery)

Power factor

0.8

Waveform

Linearload<2%, non linear load<4%

Dynamic transients

<5%

Current crest ratio

3:1

Overload capacity

Normal in 110% load, 125% for 10min

Efficiency

Double switch:94%, ECO:98%

DC

Battery voltage

220V; (10-40KVA 110V is optional)

Cutoff voltage

185V

Maximum discharge current

36A       55A      73A      109A      145A      181A      218A       291A      364A

Penal display

LCD

Chinese/English UPS status, operation instruction input voltage, output voltage, current, frequency, battery voltage, value of charge and discharge current, accident display, warning

Environment

Temperatyre

0ºC-40 ºC

Humidity

0-95%(no condensing)

Storage temperature

-25 ºC-55 ºC

Altitude

<1500m

Physical features

Weight(KG)

Net

230    258    350    400    480    580    650    900    950

Gross

250    285    380    425    500    600    675    925    988

Domension(W×D×Hmm)

800×600×2260

800×800×2260

800×1200×2260

Optional

RS485/SNMP/Harmonic compensation cabinet/Input and output isolation cabinet/Ligh protection device/Bypass stablelized cabinet/Customized appearannce  and size

Note:Product specifications are subject to change without further notice.