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Capacitors of voltage dividers, capacitive voltage dividers

Capacitors of voltage dividers, capacitive voltage dividers

 


Capacitors of voltage dividers is designed for:
* for voltage dividers in AC electrical plants;
** for voltage dividers in different apparatus at AC high-voltage electricity transmission lines, also for air circuit-breaker;
*** for voltage dividers for SF6 switches.





         Capacitors of voltage dividers 

 

Type designation
Current
frequency,
Hz
Tangent
of loss
angle
Creepage distance
of external
insulation, cm
Overall dimensions,
mm
Weight, kg
Normative
document
diameter
height
DMR-55-3,3 U1*
50; 60
3,0?10-3
155
280
890
70±7
СТ 1474-1917-
АО-4-044-2013
DMR-60-2,2 U1*
DMR-60-2,6 U1*
DMR-80-1,0 U1*
DMR-55-3,3 HL1*
DMR-60-2,2 HL1*
DMR-80-4,4 HL1*
DMK-190-0,5 UHL1, Т1**
300
330
1380
180±20
СТ 2347-1917-01-
ТОО-4-050-2014
DMK-190-1,1 UHL1, Т1**
DMK-190-1,4 UHL1, Т1**
DMK-190-1,6 UHL1, Т1**
DMKP-200-1,0 UHL1***
2,5?10-3
450
205
1861
60±7
СТ 1474-1917-
АО-4-036-2012
DMKF-200-1,0 UHL1***
262
1891
156±10


          In capacitors designation the first number after type is rated voltage in kV,
                                                         second – rated capacitance in nanofarad.


          DMR – new designation of earlier produced capacitors DMRU.
          DMKP and DMKF – capacitors in reinforced polymer or porcelain insulator.

 

 

 

 

 

 

          Capacitive voltage dividers is designed to complete capacitive voltage transformers of voltage classes 110, 220, 330, 500, 750 kV and to secure high-frequency communication from 24 up 1000 kHz along AC electricity transmission lines of frequency 50 Hz.

          Intermediate voltage for DOCI of all voltage classes - 12,064 kV.
          Capacitive voltage dividers are completed with capacitors CMAOI -110?/3 (166?/3,188?/3) and CMAI-110?3 (166?/3, 188?/3).
          Dividers for voltage 500 and 750 kV are equipped with electrostatic screen.
Symbol structure part type of dividers decryption follows is:
    
          Symbol structure part type of dividers decryption follows is:

                      DOCI-110 UHL1
                      D - voltage dividers;
                        O - function - power takeoff;
                           C - communications;
                              I - metering circuit;
                                110 - voltage type, kV;
                                       UHL - climatic modification;
                                               1 - placement category.
                      Capacitive voltage dividers
Type designation
Rated
voltage,
kV
Rated capacitance,
nanofarad
Creepage
distance,
not less,
cm
Overall dimensions, mm
Weight,
kg
Normative
document
total
1-2
2-3
diameter1)
height
(without terminals)
DOCI-110 UHL1
110/?3
18,0
22,22
94,75
315
334
1664
176±15
СТ 1474-1917-
АО-4-039-2012
DOCI-220 UHL1
220/?3
9,0
9,94
630
3328
336±15
DOCI-330 UHL1
330/?3
7,0
7,47
110.55
905
370
(352)
3168
448±30
DOCI-500 UHL1
500/?3
4,5
4,69
107,68
1357
4747
680±30
DOCI-750 UHL1
750/?3
3,0
3,08
1810
6336
902±35
DЕО-110 UHL1
110/?3
0,999
1,0
 39999
315
 284 (230)
1590
100±10
As per approved
technical requirements

            1) - Depending on the performance of the tires, there may be differences in the overall and mounting dimensions of the dividers. The required dimensions are specified when ordering.

          DOCI - voltage divider for power take-off, for communication, for measuring devices.

          DЕО - voltage divider capacitive for optical transformers.