Vacuum Contactors
CO2 Laser Therapy Apparatus
He-Ne Laser Therapy Apparatus
Aircraft Meal Carts
Guard Tour System
The
series JCZ-6 of
high-voltage vacuum
contactor are suitable
for the distribution
system of metallurgy,
mine, petro-chemistry
and building, to control
the equipments used
eletricity such as
high-voltage motor of
6kV or under 6kV,
transformer and capacitive
loading etc. Especially
suitable for frequent
operation domain. Because
of its small volume, light
weight and packaged
design of upper and lower
arrangement, prevalented
in the world. It is convenient
to use and main tain, and
is easy to form the complete
equipment of F-C loop.
¡¡
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Type EVS160-630
Heavy Task Low-voltage Vacuum Contactor
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The
series EVS 160-630 of heavy task low-voltage vacuum
contactor is produced with the technology and key equipment
introduced from abroad by our company. This product has met
IEC, VDE technical standards and reached the ninties
international advanced level.
This
series of vacuum contactors have such advantages as high
capabilities of switch-on and switch-off, long electrical
and mechanical lifetimes and high operating reliability
under the bad conditions. They are especially suitable for
being used in the basic industries, metallurgical, petrolic,
chemical industries, mine and wharf. It is applicable to the
power system with 50Hz/60Hz alternating current, rated
operating voltage up to 1140V, rated operating current up to
630A to switch-on or off the circuit at a short or
long-distance, to start frequently and control alternating
motor under the heavy task and to form eletromagnetic
starter with other kinds of protective devices.
|
Type
|
EVS160
|
EVS250
|
EVS400
|
EVS630
|
|
Rated
operating voltage Ue
|
1140V
|
1140V
|
1140V
|
1140V
|
|
Rated
operating current Ie
|
160A
|
250A
|
400A
|
630A
|
|
Rated
frequency
|
50Hz/60Hz
|
50Hz/60Hz
|
50Hz/60Hz
|
50Hz/60Hz
|
|
Rated
turn-on capacity Cosø=0.35
|
1920A
|
3000A
|
4800A
|
7560A
|
|
Rated
turn-off capacity Cosø=0.35
|
1600A
|
2500A
|
4000A
|
6300A
|
|
Max.
allowable power of motor 660V50Hz
|
140KW
|
220KW
|
350KW
|
560KW
|
|
Close
time
|
30ms
|
30ms
|
30ms
|
30ms
|
|
Release
time
|
20ms
|
20ms
|
15ms
|
15ms
|
|
Mechanical
lifetime (Times)
|
>5¡Á106
|
|
Max.
operating frequency (Times/h)
|
3000
|
|
Electrical
lifetime Ac2
Ac3
Ac4
|
31¡Á106
5¡Á106
0.12¡Á106
|
2¡Á106
5¡Á106
0.08¡Á106
|
2¡Á106
5¡Á106
0.08¡Á106
|
1¡Á106
3¡Á106
0.06¡Á106
|
Service
condition:
(1). The normal working
condition of this contactor accord with GB/T 14048.1--93
" Low-voltage Switch and
Control Equipment".
(2). Allowable surrounding air temperature: -25¡ã--45¡ã.
(3). Relative humidity: Max, relative humidity can be 90 at
25¡ã.
(4). Polution grade: 3.
(5).
Altitude: not over 2000m.
(6). Installing condition: up vertically (driving device is
up) the slope between the installational area and vertical
plane should not be over 15
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|
|
TYPE
|
EVS160
|
EVS250
|
EVS400
|
EVS630
|
|
A
|
155
|
155
|
200
|
200
|
|
B
|
300
|
310
|
330
|
300
|
|
C
|
280
|
285
|
305
|
310
|
|
D
|
75
|
75
|
87.5
|
87.5
|
|
E
|
225
|
225
|
262.5
|
262.5
|
|
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