System Overview: This product is a double-conversion online modularized UPS system with parallel redundancy characteristics, which can completely replace the traditional 1+1 parallel system. And the input harmonic distortion THDI ≤ 5%, the efficiency of the whole machine AC~AC reaches 95%, it can be said that the MT series products are a highly reliable and efficient green power supply. At the same time, it has powerful remote monitoring and man-machine communication interface, which is very suitable for medium and large data centers, precision equipment, and telecommunications industries.

Use load category: The design and application environment of this series of products is medium and large key equipment system. Such as: medium and large data processing centers, key medical equipment, manufacturing control systems and telecommunication equipment industries. Such as: data centers, communication rooms, network management centers, financial centers, securities trading, settlement centers, bank data centers, large theaters, stadiums, traffic control centers, tunnel lighting and monitoring centers for highways, railways, ports, and docks Information center, semiconductor production line, enterprise automated production line and its control system, etc.

Copy [User Manual] Extraction Code: 5n7a

Copy [installation manual] extraction code: 4s4a

Main features
Product parameter

High performance index

1. The SKMK series power system is a modular redundant parallel system design, composed of 1 to 10 UPS power modules with a rated capacity of 20KVA, which can be expanded by online hot swapping. Users can expand the UPS system by increasing the number of modules when the load capacity increases. The scalability is strong, which greatly reduces the user's operating capital investment;

2. The SKMK series power supply system adopts advanced power phase and capacity multi-standard technology, and can choose "three-phase input three-phase output" and "three-phase input single-phase output" according to the power input, and maintain the total power constant;

3. The modules in the SKMK series power system are relatively independently controlled, and the system will not be affected by any module failure. The redundancy function can be fully utilized to fully guarantee the normal operation of the equipment and achieve the maximum failure redundancy;

4. The SKMK series power system utilizes advanced intelligent fault offline hot swap technology. The power module of a single fault can be put into or removed from the parallel unit at will without power outage operation, and realize and contact the online maintenance of the system;

5. SKMK series power system parallel technology has super parallel capability, which improves the high reliability of UPS power system to a new level. Its mean time between failures (MTBF) is 1.5 times that of traditional UPS systems. The major failure value (MTBCF) is three times that of the traditional UPS system, and the mean time to repair (MTTR) is reduced to only 5 minutes;

6. The two-way information monitoring and self-test functions of the SKMK series power system can fully understand the operation of the power system;

7. SKMK series power system adopts advanced PFC circuit design, input total harmonic distortion (THDI) reaches 5%, unit input power factor PF=0.99, under linear load conditions, output total harmonic distortion (THD) is less than 2% . Greatly reduce grid pollution, effectively reduce grid load and power loss, and the efficiency of the whole machine is as high as 95%, which greatly saves energy.

Safe, stable and easy to maintain

1. The use of redundant module technology improves the safety and stability of the system;

2. The application of online hot swap technology can greatly reduce the repair time of system failures;

3. With modular design, the mean time between failures (MTBF) is 1.5 times that of the traditional UPS system;

4. More than 90% of the components in the system design adopt international brands, and the equipment has undergone 24-hour aging and related verification tests before leaving the factory to ensure the high reliability of the system.

30U

Rated power (kVA)	unit	30	60	90
Dimensions (WDH)	mm	600 x 1100 x 1475
weight	kg	295	325	355
colour	N/A	black
Protection class IEC (60529)	N/A	IP20 (front door and back door open or close)

42U

Rated power (kVA)	unit	30	60	90	120	150	180	210
Dimensions (WDH)	mm	600 x 1100 x 2010
weight	kg	275	305	335	365	395	425	455
colour	N/A	black
Protection class IEC (60529)	N/A	IP20 (front door and back door open or close)

Rectifier AC input (power supply)

Rated power (kVA)	unit	30~210
Rated AC input voltage	Vac	380/400/415 (three-phase and shared with bypassNeutral)
Input voltage tolerance	Vac	305 ~ 477; 304 ~ 208(output reduced Less than 70%)
frequency	Hz	50/60 (allowable range: 40Hz ~ 70Hz)
Power factor	kW/kVA,Full load (half load)	0.99 (0.98)
Harmonic distortion	THDI% FL	<3

battery

DC circuit
Rated power (kVA)	unit	30	60	90	120	150	180	210
Number of lead-acid batteries	Rated	216 (6 个x 36 12V battery pack)
	maximum	240 (6 个 x 40 12V battery pack)
	The smallest	192 (6 个 x 32 12V battery pack)
Float voltage	V/个	2.3V/pc Constant current and constant voltage charging mode
Temperature compensation	mV/ /cl	-3.0(optional)
Ripple voltage	% V float	≤1
Ripple current	% C10	≤5
Boost voltage	VRLA	2.35V/cell Constant current and constant voltage charging mode
EOD voltage	V/cell	1.67V/cell
battery charger	V/cell	Limited current constant voltage charging mode floating voltage 2.3V/cell Boost voltage 2.35V/cell
Battery charging power 1 Maximum current (adjustable)	kW	30	60	90	120	150	180	210
Battery charging power 1 Maximum current (adjustable)	A	8	16	24	32	40	48	54
Note:1. At low voltage input, the UPS charging power will increase as the load decreases (up to the maximum current mentioned above).

Inverter/inverter output (connect to critical load)

Rated power (kVA)	unit	30 ~ 210
Rated AC voltage 1	Vac	380/400/415 (three-phase four-wire, neutral wire potential reference bypass neutral Line potential)
frequency	Hz	50/60 automatic selection
overload	%	60 minutes at 105%~110% 10 minutes at 110%~120% 121%~150% for 1 minute 200 ms at >150%
Neutral line current capacity	%	170%
Steady-state voltage stability	%	±1 (balanced load), ±2 (100% unbalanced load)
Total harmonic voltage	%	<1(Linear load), <4 (Non-linear load 3)
Synchronize		+/- 1Hz, +/- 2Hz, +/- 4Hz (default: 4Hz)
Note:1. The factory default is 400V. Can be commissioned to change to 380 or 415V.

Bypass power input

Rated power (kVA)	unit	30 ~ 210
Rated AC voltage 1	Vac	380/400/415, (three-phase four-wire type, sharing neutral with inverter/inverter input Line, and is the neutral reference potential of the output terminal)
Rated current	A	90KW at 30U è 171, 380V / 164, 400V / 157, 415V 120KW at 42U è 228, 380V / 218, 400V / 209, 415V At 42U 210KW è 397, 380V / 380, 365V / 329, 415V
overload	%	60 minutes at 105%~110% 10 minutes at 110%~120% 121%~150% for 1 minute 200 ms at >150%
Bypass protection measures	N/A	Circuit breaker (specification 100% rated output current)
Rated neutral current	A	1.7 × In
frequency	Hz	50/60 automatic selection
Switching time (between bypass and inverter/inverter)	ms	Synchronous switching: ≤20ms
Bypass voltage limit range	%Va c	Upper limit: +10, +15 or +20; preset: +15 Lower limit: -10, -20, -30; preset: -20 (delay time of steady-state bypass voltage: 10s)
Frequency Range	Hz	+/- 1Hz, +/- 2Hz, +/- 4Hz (预设：4Hz)
Note: 1. The factory default is 400V. Can be commissioned to change to 380 or 415V.