GE Multilin DFF Instruction Manual page 27

Digital frequency relay
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5.2 TECHNICAL CHARACTERISTICS
MECHANICAL
• Protection IP51 (according to IEC 529).
• Local MMI with LCD display (2 rows of 16 characters each) and 20-button keypad.
• 19 " rack – 4U high version
• Up to 10 Rear terminal blocks with 12 terminals each.
• Dimensions: 437 x 200 x 176 mm.
• Weight: Net 12 kg. Shipping 13 kg
• ½ 19'' rack – 4U high version:
• Up to 8 Rear terminal blocks with 12 terminals each.
• Dimensions: 222 x 200 x 176 mm
• Weight: Net 10 kg. Shipping 12 kg.
FREQUENCY MEASUREMENTS
Accuracy:
Repeatability:
Temperature error:
Ageing:
Hysteresis:
When a stable frequency generator is used. For instance the EPOCH20 in 50 or 60 Hz mode.
ELECTRICAL CHARACTERISTICS
• Frequency:
• Nominal Voltage:
• Power Supply:
• Digital Inputs nominal voltage:
• AC Voltage inputs
- Continuous rating:
- 1 min rating:
• Temperature:
- Operation:
- Storage:
Humidity:
• Tripping contacts:
- Nominal Voltage, maximum
operating voltage:
- Continuous current / make and
carry.
- Breaking capacity
- Mechanical life
• Burdens:
- Voltage circuit:
- DC burden:
- Per energized digital input:
26
TECHNICAL CHARACTERISTICS
±100 PPM at 20°C
±50 PPM
±35 PPM from -20°C to +55°C
±5 PPM according to MIL-C3098F
0.04 Hz
50 or 60 Hz
90 - 220 Vac (phase-phase)
48 - 125 Vdc or 100 - 250 Vdc ± 20%
(see ordering code/model list )
48-125, 110-220 Vdc (see ordering code/model list)
Un = 220/%3
2 x Un
3.5 x Un
-20°C to +55°C
-40°C to +70°C
Up to 95% without condensation
250 / 440 Vac
16 / 25
4000 VA
3 x 10E6 operations
0.2 VA for Un = 90 Vac
12 W
8 mA (1 W Vaux = 125 Vdc)
DFF Digital Feeder Relay
GEK-106166E

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