Eaton NR, Installation And Operation Instructions Manual

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Type NR oil switch installation and operation instructions
INSTALLATION AND OPERATION INSTRUCTIONS
MN230008EN November 2016
Ratings and specifications
Table 1 . Electrical data (control)
Description Rating
Nominal operating voltage (50/60 Hz only) (Vac) 120 240
Operating voltage range (Vac) 95 – 130 190 – 260
Closing-motor current (amp) 1.9 .7
Switch response time, opening (sec) 4.0 4.0
Switch response time, closing (sec) 0.5 0.5
Table 2 . Voltage and current ratings
Description Standard
15 kV with
17" creepage
15 kV with
125 kV BIL 22 kV
Maximum Design Voltage, kV 15.0 15.0 15.0 22.0
Nominal Operating Voltage, kV 2.4-14.4 2.4-14.4 2.4-14.4 20.0
Basic Insulation Level (BIL), kV 95 95 125 125
60 Hertz withstand voltage, kV
Dry, one minute
Wet, ten seconds
35
30 35
30 42
36 60
50
Continuous current rating, Amps 200 200 200 60
Load interrupting ability (inductive), symmetric Amps
75-100% power factor
50-75% power factor
< 50% power factor
200
100
50A 200
100
100A 200
100
50A 60
60
60
Maximum capacitive current, amps (parallel bank-max) 200 200 200* 60*
High frequency transient current, Amps 12000 12000 12000 12000
Transient frequency, Hz 6000 6000 6000 6000
High frequency damping factor .40 -.55 .40 -.55 .40 -.55 .40 -.55
Momentary rating, Amps asym. 9000 9000 9000 9000
Short time current Amps
1/2 second,sym.
1 second, sym.
6000
4500 6000
4500 6000
4500 6000
4500
Close and latch rating, Amps asym. 9000 9000 9000 9000
*The 125 kV BIL switch and the 22.0 kV switch are rated for single bank switching only.