Technical Details - ABB OVR-15 Instruction, Operation And Maintenance Manual

10 O V R - 1 5 , 2 7 A N D 3 8 O U T D O O R VA C U U M R E C L O S E R H I G H VO LTA G E U N I T W I T H S E L7 5 1
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4 Technical details

These operating instructions are applicable
to the HV unit of the OVR-15, 27 and 38 medium
voltage, three-phase, mechanically gang-operated
vacuum reclosers.
Each OVR-15, 27 and 38 recloser has three vacuum
interrupters, each assembled in a pole cast from
an advanced hydrophobic cycloaliphatic epoxy
polymer (HCEP). Together with the specialized
control functions, the recloser will sense a pickup
current (or other pre-configured condition) and
automatically open, or "trip."
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4.1 Table 2: Technical data for OVR-15, 27 and 38
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
For other technical details, please refer to the order-specific drawings.
Technical characteristic
Installation
Suitable as standard
Rated system voltage
Rated frequency
Nominal current at 40 °C ambient
Short time current withstand capability
Fault current breaking capability
Making current capability
One-minute power frequency withstand
capability (dry/wet )
Lightning impulse voltage
withstand capability
Switching of line-charging current
Switching of cable-charging current
Operating sequence
(reclosing sequence)
Closing time
Opening time
Number of operations at rated current
Insulating material of poles
Type of operating mechanism
Minimum creepage distance
Center-to-center distance
between phases
Mass of the auto recloser HV unit
excluding mounting frame (approx.)
Protection class for cabinet (HV and LV)
Maximum load on foundations
(inclusive of the mass of the recloser)
Suitable for wind speed up to
Ambient temperature range
After a pre-configured open interval time, the
recloser will close again. If the tripping condition
still exists, the recloser will trip again and reclose.
The OVR-15, 27 and 38 recloser can reclose up to
three times in one operating cycle.
The standard OVR-15, 27 and 38 recloser control,
SEL-751, will allow up to three closing operations
before the recloser will "lock out" in the open
position.
OVR-15
15 kV
630 amps
12.5 kA rms for 3 sec. 12.5 kA rms for 3 sec.
12.5 kA rms
32.5 kAp
50 kV rms/
45 kV rms
110 kVp
2 A
10 A
O – 0.2 s – CO – 2 s – CO – 2 s – CO – lockout
10,000 CO (With proper periodic maintenance,
unit can perform up to 25,000 CO operations)
Hydrophobic cycloaliphatic epoxy polymer (HCEP)
481 mm
394 mm
140 kg
11,600 N – compression (open operation)
OVR-27 OVR-38
Outdoor, pole/substation mounting
IEC 62271-111/IEEE C37.60
27 kV 38 kV
50 / 60 Hz
1000 amps 1200 amps
16 kA rms for 3 sec.
12.5 kA rms 16 kA rms
32.5 kAp 41.6 kAp
60 kV rms/ 70 kV rms/
50 kV rms 60 kV rms
125 kVp 170 kVp
5 A
25 A 40 A
≤ 65 ms
≤ 40 ms
Magnetic actuator
960 mm 1178 mm
394 mm 394 mm
145 kg 180 kg
IP55
7000 N – tension (close operation)
200 km/hr.
-40 ˚C to +55 ˚C
5 A