Capacitor Current Transformer High Voltage CVT 11kv 22kv 33kv 66kv 110kv 220kv 330kv 400kv 770kv

Looking for high voltage current transformers? Look no further! Our factory offers a range of CVTs from 11kV to 770kV. Quality guaranteed.
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PRODUCTS DETAILS

Basic Info.

Model NO.
MK-CVT2046
Operation Condition
Outdoor
Usage
Protection, Measurement
Winding Form
Multilayer Honeycomb Type
Insulating Medium
Insulating Gas
Installation
Active Type
Magnetic Circuit Structure
Combined Type
Voltage Transformation Principle
Photoelectric Type
Transport Package
Wooden Case
Specification
Customized
Trademark
Markevina or OEM
Origin
China
Production Capacity
1000000/Year

Packaging & Delivery

Package Size
100.00cm * 150.00cm * 100.00cm
Package Gross Weight
500.000kg

Product Description

Capacitor Current Transformer, 11KV 22KV 33KV 66KV 110KV 220KV 330KV 400KV 770KV
Current Transformer,
Instrument Transformer for High Voltage Power Supply System
 
 
Item A 765 kV Capacitor Voltage Transformer (CVT) Unit SCHEDULE A  SCHEDULE B
Eskom  Technical
requirements guarantees for
  equipment offered
         
1 Manufacturer     TYD765/3-0.0044H
2 Manufacturer's type number      
3 Rated Capacitance pF 4,400 4,400
  a) Value of upper capacitance (C1) pF    
  b) Lower Capacitance (C2) pF    
4  System conditions for which the      
  capacitor shall be suitable      
  a) Rated frequency Hz 50 50
  b) System neutral   Effectively earthed Effectively earthed
  c) Rated r.m.s. line-to-line voltage  kV 765 765
  d) Maximum continuous r.m.s. line-to-line Voltage kV 800 800
5 Insulation      
  a) Minimum crest value of full wave      
  lightning impulse type test withstand      
  voltage to earth at sea level on HV terminal kV 2,100 2,100
  b) Characteristic of impulse wave   μs 1.2/50 1.2/50
  c) Minimum crest value of full wave      
  switching impulse type test withstand      
  voltage to earth at sea level on HV terminal kV  1,550 1,550
  d) Characteristic of impulse wave  μs 250/2 500 250/2 500
  e) Minimum 60 s power frequency wet      
  withstand type test voltage to earth at      
  sea level on HV terminal kV r.m.s. 975 975
  f) Minimum 60 s power frequency dry      
  withstand routine test voltage at sea level      
  on HV terminal kV r.m.s. 975 975
  g) Partial discharge type test in accordance with      
   IEC 61869-1   Complies Complies
  h) Polution level      
  1) Extra heavy - creepage distances mm Extra heavy Extra heavy
  arcing distances mm    
6 Equipment suitable for carrier injection    Yes  Yes
7 High frequency capacitance and % -20  to +50 of rated C -20  to +50 of rated C
  equivalent series resistance Ωmax 40 40
8 Stray capacitance and stray conductance pF max 200 200
  of low voltage terminals  μs max 20 20
9 Radio influence      
  a) Test voltage kV  kV 508 508
  b) Maximum radio influence voltage  μV 2500 2500
10 Self resonant frequency of complete capacitor stack MHz >1 >1
11 LV terminals      
  Minimum 60 s power frequency dry      
  withstand routine test voltage on low      
  voltage terminal  kV r.m.s. 10 10
12 Capacitor suitable for supporting a line trap    No  No
13 VT Secondary windings      
  a) Protection (P1)   1 1
  b) Protection (P2)   1 1
  c) Metering (M)   1 1
  d) Total   3 3
14 VT mounted in base of CC (Single unit)    Yes  Yes
15 Rated CVT transformation ratios      
  a) Protection winding (P1)   765/√3 kV to 110/√3 V 765/√3 kV to 110/√3 V
  b) Protection winding (P2)   765/√3 kV to 110/√3 V 765/√3 kV to 110/√3 V
  c) Metering winding   765/√3 kV to 110/√3 V 765/√3 kV to 110/√3 V
16 16 Rated burden of secondary windings      
  a) P1 winding VA 50 50
  b) P2 winding VA 50 50
  c) M winding VA 50 50
  d) Total burden VA 150 150
17 Accuracy class of CVT      
  a) P1 winding   3P 3P
  b) P2 winding   3P 3P
  c) M winding (within burden range 40 VA to 50 VA)   0.2M 0.2M
18 Transient response Class   T1 T1
19 Ferroresonance  (Ref 5.15 of 240-56030645)      
  a) Amplitude   xxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx
  b) Damping   xxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx
20 Secondary short circuit current A    
  a) P1 winding      
  b) P2 winding      
  c) M winding      
21 Maximum CVT rating as a power transformer kVA    
    Cos φ    
22 Recommended maximum rating of fuses       
  protecting the voltage transformer secondary windings  A    
23 Class of insulation of VT       
24 Rated voltage factor      
  a) Continuous   1.2 1.2
  b) 30 s 1.5 1.5
25 Temperature category of CVT  °C -10 to +40  -10 to +40 
26 Maximum carrier frequency insertion loss of VT dB  0.5 0.5
27 Minimum 60 s power frequency withstand routine      
   test voltage on secondary windings kV r.m.s. 2 2
28 CVT equipment with carrier earthing switch   Yes Yes
29 Carrier drain coil      
  a) i) Maximum insertion loss dB 0.5 0.5
  or      
  ii) Minimum impedance at carrier frequency 10 10
  b) i) Maximum volt drop at rated frequency with      
   associated CC energized at rated voltage V 30 30
  or      
  ii) Maximum 50 Hz impedance Ω 20 20
  c) Minimum 50 Hz current carrying capacity      
  i) Continuous A r.m.s. 1 1
  ii) Short time for 0.2s A r.m.s. 50 50
  d) Minimum impulse withstand voltage kV 10 10
30 Low voltage terminal arrester      
  Non linear arrester   Yes Yes
  a) Rated voltage kV    
  b) Impulse sparkover voltage kV    
  c) Minimum 8/20 μs impulse discharge current kA 5 5
31 Type of mounting    Upright on pedestal with Upright on pedestal with
      integral VT as base unit integral VT as base unit
32 High-voltage terminal      
  a) Terminal material and finish      
  b) Dimensions mm 60 dia x 150 long 60 dia x 150 long
  c) Arrangement of terminals   Vertical Vertical
  d) Number of terminals   1 1
  e) Withstand force without failure kN 3 3
  f) Withstand force without distortion kN 1.5 1.5
33 Secondary terminals      
  a) Separate terminal box for secondary terminals      
   with gland plate facilities   Yes Yes
  b) Separate insulated bushing for connection to      
   carrier equipment   Yes Yes
34  Mass of complete CVT  kg    
35  Outline Drawings showing:      
  a) dimensions, fixing details and mounting arrangements   Yes Yes
  b) Details of HV connecting terminals   Yes Yes
  c) Earth terminal   Yes Yes
  d) Details of secondary terminal   Yes Yes
  e) Details of earth switch and carrier connection   Yes Yes
  f) Nameplate   Yes Yes
36 Type test reports (Capacitor Voltage Transformer)      
a) Temperature-rise test   Yes Yes
b) Chopped impulse test   Yes Yes
c) Switching impulse test   Yes Yes
d) Wet test for outdoor type transformers   Yes Yes
e) Radio influence voltage test (RIV)   Yes Yes
f) Transmitted overvoltage test   Yes Yes
g) Test for accuracy   Yes Yes
h) Verification of the degree of protection by enclosures   Yes Yes
i) Enclosure tightness test at ambient temperature   Yes Yes
j) Capacitance and tan δ measurement at power frequency   Yes Yes
k) Short circuit withstand capability test   Yes Yes
l) Ferro-resonance test   Yes Yes
m) Transient response test   Yes Yes
n) Mechanical test   Yes Yes
37 Type test reports (Carrier frequency accessories)       
a) Drain coil - Impulse voltage test   Yes Yes
b) Drain coil - Voltage withstand test   Yes Yes
c) Voltage limitation device - Impulse voltage test   Yes Yes




Capacitor Current Transformer High Voltage CVT 11kv 22kv 33kv 66kv 110kv 220kv 330kv 400kv 770kvCapacitor Current Transformer High Voltage CVT 11kv 22kv 33kv 66kv 110kv 220kv 330kv 400kv 770kvCapacitor Current Transformer High Voltage CVT 11kv 22kv 33kv 66kv 110kv 220kv 330kv 400kv 770kvCapacitor Current Transformer High Voltage CVT 11kv 22kv 33kv 66kv 110kv 220kv 330kv 400kv 770kv Capacitor Current Transformer High Voltage CVT 11kv 22kv 33kv 66kv 110kv 220kv 330kv 400kv 770kv
Capacitor Current Transformer High Voltage CVT 11kv 22kv 33kv 66kv 110kv 220kv 330kv 400kv 770kv Capacitor Current Transformer High Voltage CVT 11kv 22kv 33kv 66kv 110kv 220kv 330kv 400kv 770kv Capacitor Current Transformer High Voltage CVT 11kv 22kv 33kv 66kv 110kv 220kv 330kv 400kv 770kv

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