Introduction:
Pomanique’s ZX-Series three-phase, electronically controlled, vacuum- interrupting distribution automation switch provides reliable, economical switching, sectionalizing, advanced metering, and automation systems for distribution circuits rated up to 38 kV.
The ZX switch combines solid cycloaliphatic- epoxy vacuum interrupters with a reliable, lightweight operating mechanism that utilizes a magnetic actuator to provide a lifetime of trouble- free operation. The solid polymer system does not rely on a gaseous, liquid, or foam dielectric. The ZX switch is highly resistant to ozone, oxygen, moisture, contamination, and ultraviolet light.
Switch operations are programmed in an electronic control with accurate characteristics and a host of advanced features. When system requirements change, program settings are easily altered with no sacrifice of accuracy or consistency.
Pomanique’s reclosers meet all the requirements for outdoor use in accordance with the IEEE C37.60 and IEC 62271-111.
|
Rated maximum voltage Ur
|
kV
|
15.5
|
27
|
27
|
38
|
|
Rated continuous current Ir
|
A
|
630, 800
|
630, 800
|
630, 800
|
630, 800
|
|
Rated lightning impulse withstand voltage Up
|
kV
|
110
|
125
|
150
|
170
|
|
Power frequency insulation level withstand test voltage (one minute dry) Ud
|
kV
|
50
|
60
|
70
|
70
|
|
Rated symmetrical interrupting current Isc
|
kA
|
12.5, 16
|
12.5
|
12.5, 16
|
12.5, 16
|
|
Rated asymmetrical making current (rms)
|
kA
|
20, 25
|
20
|
20, 25
|
20, 25
|
|
Rated peak making current
|
kA
|
32.5, 41
|
32.5
|
32.5, 41
|
32.5, 41
|
|
Mechanical life (operating cycles)
|
OPS
|
10,000
|
10,000
|
10,000
|
10,000
|
|
Permissible short-circuit operations
|
OPS
|
up to 250
|
up to 250
|
up to 250
|
up to 250
|
|
Ambient temperature range
|
oC
|
-40 to +55
|
-40 to +55
|
-40 to +55
|
-40 to +55
|
|
