Product Overview
The SKE 3-Phase Input/ 1-Phase Output Rack-mount UPS series represents a new generation of fully digitalized uninterruptible power supply. It utilizes a double conversion system design, providing exceptional stability and reliability.
Specifications
Model
SR31-10KS
SR31-15KS
SR31-20KS
Rated Power / Peak Power
10kVA/10kW
15kVA/15kW
20kVA/20kW
Phase
3-Phase 4-Wire Input / 3-Phase 4-Wire Output / 1-Phase 3-Wire
3-Phase 4-Wire Input / 3-Phase 4-Wire Output / 1-Phase 3-Wire
3-Phase 4-Wire Input / 3-Phase 4-Wire Output / 1-Phase 3-Wire
Parallel Capacity
4 max
4 max
4 max
Input
Input Voltage
3 x 380Vac (3-phase + N + PE)
3 x 380Vac (3-phase + N + PE)
3 x 380Vac (3-phase + N + PE)
Voltage Range
190 ~ 520VAC (3-Phase) at 50% Load; 305 ~ 478VAC (3-Phase) at 100% Load
190 ~ 520VAC (3-Phase) at 50% Load; 305 ~ 478VAC (3-Phase) at 100% Load
190 ~ 520VAC (3-Phase) at 50% Load; 305 ~ 478VAC (3-Phase) at 100% Load
Frequency Range
46 ~ 54Hz or 56 ~ 64Hz
46 ~ 54Hz or 56 ~ 64Hz
46 ~ 54Hz or 56 ~ 64Hz
Power Factor (PF)
≥ 0.99 at 100% Load
≥ 0.99 at 100% Load
≥ 0.99 at 100% Load
Output
Output Voltage
3 x 380/380/400/415 Vac (3-Phase +N+PE) or 208/220/230/240 Vac (1-Phase +N)
3 x 380/380/400/415 Vac (3-Phase +N+PE) or 208/220/230/240 Vac (1-Phase +N)
3 x 380/380/400/415 Vac (3-Phase +N+PE) or 208/220/230/240 Vac (1-Phase +N)
Voltage Range (Battery Mode)
± 1%
± 1%
± 1%
Frequency Range (Sync Correction Range)
46 ~ 54Hz or 56 ~ 64Hz
46 ~ 54Hz or 56 ~ 64Hz
46 ~ 54Hz or 56 ~ 64Hz
Frequency Range (Battery Mode)
50Hz ± 0.1Hz or 60Hz ± 0.1Hz
50Hz ± 0.1Hz or 60Hz ± 0.1Hz
50Hz ± 0.1Hz or 60Hz ± 0.1Hz
Peak Factor
3:1 (Maximum)
3:1 (Maximum)
3:1 (Maximum)
Harmonic Distortion
≤ 1% HTD (Resistive Load); ≤ 3% HTD (Non-Resistive Load)
≤ 1% HTD (Resistive Load); ≤ 3% HTD (Non-Resistive Load)
≤ 1% HTD (Resistive Load); ≤ 3% HTD (Non-Resistive Load)
Transfer Time
AC Mode: 0 ms; Inverter to Bypass: 0 ms
AC Mode: 0 ms; Inverter to Bypass: 0 ms
AC Mode: 0 ms; Inverter to Bypass: 0 ms
Overload AC Mode & Battery Mode
100-110% @60 minutes; 110-125% @10 minutes;125-150% @1 minutes; >150% @Immediate Protection
100-110% @60 minutes; 110-125% @10 minutes;125-150% @1 minutes; >150% @Immediate Protection
100-110% @60 minutes; 110-125% @10 minutes;125-150% @1 minutes; >150% @Immediate Protection
Waveform (Battery Mode)
Pure Sine Wave
Pure Sine Wave
Pure Sine Wave
Efficiency
AC Mode
95.5%
95.5%
95.5%
ECO Mode
98.5%
98.5%
98.5%
Battery Mode
94.5%
94.5%
94.5%
Battery
Battery Type
Using multiple battery cabinets as needed based on the actual application
Using multiple battery cabinets as needed based on the actual application
Using multiple battery cabinets as needed based on the actual application
Battery Qty.
16 ~ 20 PCS (Adjustable)
32 ~ 40 PCS (Adjustable)
32 ~ 40 PCS (Adjustable)
Chargeing Voltagee
1A/2A/4A/6A/7A/8A/9A/10A/11A/12A (Adjustable)
1A/2A/4A/6A/7A/8A/9A/10A/11A/12A (Adjustable)
1A/2A/4A/6A/7A/8A/9A/10A/11A/12A (Adjustable)
Maximum Charging Current
12A Maximum
12A Maximum
12A Maximum
Display Instructions
LCD Display
System Status; Load Size; Battery Capacity; Input/Output Voltage; Discharge Time; Fault Indication
System Status; Load Size; Battery Capacity; Input/Output Voltage; Discharge Time; Fault Indication
System Status; Load Size; Battery Capacity; Input/Output Voltage; Discharge Time; Fault Indication
Structural Parameters
Size (D x W x H)
680 x 438 x 133 mm (3U)(26.77 x 17.24 x 5.24 inch)
680 x 438 x 133 mm (3U)(26.77 x 17.24 x 5.24 inch)
680 x 438 x 133 mm (3U)(26.77 x 17.24 x 5.24 inch)
Net. Weight
27kg (59.52 lbs)
30kg (66.14 lbs)
30kg (66.14 lbs)
Environmental Parameters
Humidity and Temperature
Relative humidity of 0% to 95%; Temperature of 0°C to 40°C (non-condensing)
Relative humidity of 0% to 95%; Temperature of 0°C to 40°C (non-condensing)
Relative humidity of 0% to 95%; Temperature of 0°C to 40°C (non-condensing)
Altitude
<1000m
<1000m
<1000m
Noise
< 62dB @1m
< 62dB @1m
< 62dB @1m
Control Management
Intelligent RS-232/USB
Supports: Windows 2000/2003/XP/Vista/2008/7/8, Linux, and MAC
Supports: Windows 2000/2003/XP/Vista/2008/7/8, Linux, and MAC
Supports: Windows 2000/2003/XP/Vista/2008/7/8, Linux, and MAC
Optional SNMP
Power management supports: SNMP management; Network management
Power management supports: SNMP management; Network management
Power management supports: SNMP management; Network management