GE Kelman DGA 900 Plus - 3 TECHNICAL SPECIFICATIONS

MA-041 – DGA 900 Plus - Installation & Commissioning Manual - Rev 1.1 4-Mar-22 Page 10 of 99
3 TECHNICAL SPECIFICATIONS
The product meets the following technical specification as outlined in Table 3-1.
Table 3-1: Measurements & Operating Specifications
BUSHING & PD MEASUREMENTS
Input current measuring range
2 mA – 200 mA rms, 1% of reading
Relative phase angle accuracy
0.01 deg of angle
Maximum number of PD measured
200 pulses per cycle (50 to 60 Hz)
Measurement category for signal inputs
CAT III. 5 V AC rms, 200 mA; on each phase
Maximum bushing temperature at bushing adaptor
90 °C (194 °F)
ENVIRONMENTAL
Unit operating temperature
−40 °C to 55 °C (−22 °F to 131 °F)
Bushing adaptor operating temperature
−40 °C to 90 °C (−40 °F to 194 °F)
at bushing tapping point
Storage temperature
0 °C to 45 °C (−32 °F to 113 °F)
Altitude
Up to 2000 m (6500 ft) above sea level
Atmospheric pressure
Up to 1050 mbar
Operating humidity
10 – 95% RH non-condensing
Enclosure
*1
IP56, NEMA 3RX
Bushing adaptors
IP66
Weight
*2
Analysis module: 33.4 kg (73.6 lb)
Hub module: 22.2 kg (48.9 lb)
2 m PCC cable: 0.8 kg (1.83 lb)
Product weight: 56.4 kg (124.33 lb)
Bushing adaptor (each): 0.350 g (0.8 lb)
Pollution degree
2
POWER
Nominal input voltage range:
100-250 V DC 4 A
100-240 V AC, 50/60 Hz, 4 A
Input voltage range:
90-264 V AC
90-275 V DC
AC frequency range:
45-65 Hz
Single phase Alarm Relays: NO and NC provided
*3
10 A 250 V AC, 10 A 30 V DC,
0.3 A 110 V DC, 0.12 A 220 V DC
Over Voltage Category
II
Fuses
*4
10 A 600 V AC/DC EATON KLM-10
DC distribution fuses – Schurter Series SPT
250V DC 8 or 6.3 A
Coin cells
Panasonic CR2450 3 V 620 mAh
TOP OIL TEMPERATURE SENSOR (Bushing Monitor)
Operating Voltage
12 V DC
Communication
CAN bus
TOP OIL TEMPERATURE SENSOR (Models)
Communication
4-20 mA