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Reclosers

W, VW, WV, VWV three-phase recloser

Easily installed on poles and in substations, Eaton's Cooper Power series W-group three-phase, hydraulically controlled automatic circuit reclosers provide reliable, economic overcurrent protection. Available with vacuum or oil interruption, tripping is initiated by a series trip coil that releases the stored-energy trip mechanism when an overcurrent occurs. A closing solenoid supplies the energy for contact closing and also stores energy in the trip mechanism. Dual time-current characteristics permit coordination with other protective devices. A choice of four delayed characteristics allows flexibility in system coordination. 

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W recloser product aid W, WV27, WV38X, VW, VWV27 and VWV38X three-phase, hydraulically controlled recloser catalog
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Compact and self-contained
Easily installed on poles and in substations
Internal mechanism suspended from head casting
Easy field access to the contacts and the mechanism
Vacuum arc-interrupting medium
Long contact life and duty cycles

Core features

  • Reliable, economical overcurrent protection for distribution circuits 
  • Compact and self-contained in operations, can be easily installed on poles and in substations. 
  • Can be readily coordinated with circuit breakers, sectionalizers, fuses and other reclosers on the distribution system
  • Broad application capabilities permit the user to select exactly the right recloser for the protection required
  • Accessories permit tailoring a recloser to specific application requirements
  • Mounting equipment for both pole and substation facilitates installing a recloser precisely where system requirements demand its protection
 
 

Ratings available for equipment coordination

Eaton's Cooper Power series three-phase W-group reclosers are designed to protect circuits on systems operating through 34.5 kV. With the ratings available and the ability of these reclosers to coordinate with other protective equipment, including lower-rated reclosers, they can be applied in a variety of schemes. The range of protection can be extended by a ground-trip accessory, which provides protection against ground-fault currents that are less than the minimum-trip value of the series coils. Flexibility of application is greatly enhanced by accessories that enable remote control of the recloser.

Vacuum interruption reduces mechanical stress

Vacuum interrupters provide fast, low-energy arc interruption with long contact and interrupter life, low mechanical stress and maximum operating safety. With arc interruption taking place in a vacuum, contact and interrupter life are several times greater than with interruption in oil, and interrupter maintenance is virtually eliminated. Because of the shorter contact stroke, mechanical stress and wear on the mechanism is substantially reduced.
Specifications

Standards

Eaton's Cooper Power series reclosers are designed and tested in accordance with the following ANSI standards: C37.60 and C37.85 and ANSI Guide C37.61

Ratings

  W and VW
 WV27
 VWV27
 VWV38X
 WV38X
Nominal system voltage (kV)
 2.4-14.4
 24.9 24.9 24.9-34.5 24.9-34.5
Maximum rated voltage (kV)
 15.5
 27 27 38 38
Rated impulse withstand voltage (BIL) (kV crest)
 110
 150 150 150 170
60 Hz withstand voltage (kV rms) 
 Dry, one minute
 50 60 60 70 70
Wet, ten seconds
 45 50 50 60 60
Rated maximum continuous current (A)
 560 560 560 560 560
Reclosing time (seconds) 2 2 2 2 2

Definite purpose capacitor switching ratings

    VW
 VWV27
 VWV38X
Isolated Bank (A rms)
 400 400 250
Parallel Bank
 Current (A)
 400 400 250
Peak current (kA)
 20 20 20
Transient inrush frequency (Hz)
 4240 4240 6800
*Applies to solidly grounded bank applications

Interrupting ratings

Trip coil rating continuous A
 Minimum trip A
 W @ 4.8 kV W @ 14.4 kV VW @ 2.4–14.4 kV
 WV27 @ 24.9 kV
 VWV27 @ 24.9 kV
 WV38X @ 24.9–34.5 kV
 VWV38X @ 24.9–34.5 kV
5 10 300 300 300 300 300 300 300
10 20 600 600 600 600 600 600 600
15 30 900 900 9000 900 900 900 900
25 50 1500 1500 1500 1500 1500 1500 1500
35 70 2100 2100 2100 2100 2100 2100 2100
50 100 3000 3000 3000 3000 3000 3000 3000
70 140 4200 4200 4200 4200 4200 4200 4200
100 200 6000 6000 6000 6000 6000 6000 6000
140 280 8400 8400 8400 8000 8400 8000 8400
160 320 9600 9600 9600 8000 9600 8000 9600
185 370 11100 10000 11100 8000 11100 8000 11100
200 400 12000 10000 12000 8000 12000 8000 12000
225 450 12000 10000 12000 8000 12000 8000 12000
280 560 12000 10000 12000 8000 12000 8000 12000
400 800 12000 10000 12000 8000 12000 8000 12000
560 1120 12000 10000 12000 8000 12000 8000 12000
70x 100 3000 3000 3000 3000 3000 3000 3000
100x 140 4200 4200 4200 4200 4200 4200 4200
140x 200 6000 6000 6000 6000 6000 6000 6000
160x 225 6750 6750 6750 6750 6750 6750 6750
185x 260 7800 7800 7800 7800 7800 7800 7800
225x 315 9450 9450 9450 8000 9450 8000 9450
280x 450 12000 10000 12000 8000 12000 8000 12000
400x 560 12000 10000 12000 8000 12000 8000 12000
560x 750 12000 10000 12000 8000 12000 8000 12000
Note: Minimum-trip on "X" coils is approximately 140% of continuous ratings

Duty cycle

  % of Interrupting rating
 Number of unit operations
 Maximum circuit X/R value
W
 15-20 28 3
45-55 20 7
90-100 10 14
  Total 58  
WV27
 15-20
 28 4
45-55
 20 8
90-100
 10 15
  Total 58  
WV38X
 15-20
 28 4
45-55
 20 8
90-100
 10 15
  Total 58  
VW
 15-20
 88 4
45-55
 112 8
90-100
 32 15
  Total 232  
VWV27
 15-20
 88 4
45-55
 112 8
90-100
 32 15
  Total 232  
VWV38X
 15-20
 88 4
45-55
 112 8
90-100
 32 15
  Total 232  

Options

  • Bushing-type, multi-ratio current transformers
  • Electronic ground-trip accessory
  • Ground-trip blocking switch
  • Remote trip
  • Low-voltage DC closing
  • Low-voltage AC closing 
  • Auxiliary switch
  • Lockout-indicating switch
  • Remote lockout
  • Remote close
  • Remote block of closing
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