Voltage dividers

HIGH-VOLTAGE VOLTAGE DENSITY DEVICES FOR INSTRUMENTATION

The dividers can be used in digital measuring instruments, instability and drift meters in analytical instrumentation devices, in high-voltage DC power supplies. The Institute has developed various types of high-voltage resistors and high voltage voltage dividers based on a cast microwire in glass insulation, providing high metrological characteristics and a significant reduction in the weight and dimensions of the equipment in which they are used. The application of the developed products in metrology, power engineering, and electron microscopy in other fields of science and technology has for many years confirmed their high quality and compliance with modern requirements.

SPECIFICATIONS

Parameters MD4000-5 MD4000-10 MD4000-15 MD4006-20 MD4006-50
Values
Permissible deviation of the fission factor from the nominal value,% ±0,2
Nominal value of the division coefficient 500 1000 1500 2000 5000
Rated input resistance, MΩ 50 100 150 200 500
Rated input voltage, kV 5 10 15 20 50
Operating temperature range, ° C 20±5
Dimensions, mm 25x25x80 25x25x85 35x35x90 35x35x170
Weight, kg, no more than 0,05 0,13 0,25
Relative humidity of ambient air at 25 ° C,% 80

High-voltage voltage dividers
 

The voltage divider provides the use of resistive elements with a winding made of a cast microwire in glass insulation, intended for scale conversion of a high DC voltage into a low voltage.

Options Values
50 100 200 300 400 500
Rated input voltage of constant current, kV 50 100 200 300 400 500
Rated input resistance, MΩ 500 1000 2000 3000 4000 5000
Output voltage, V 10;100
Limit of admissible deviation of the input resistance of the divider from the nominal value under operating conditions of use, not more than,% 0,1 0,2 0,5 1
Limit of the permissible basic error of the divisor dividing ratio, not more than,% 0,05 0,1 0,2
Temperature instability of the divisor dividing factor in the temperature range from 10 ° С to 25 ° С, no more than,% 0,1 0,1 0,5
Overall dimensions, mm 150×250×370 ∅360×800 ∅360×1500 ∅360×2000 ∅600×2500 ∅600×3000
Weight, no more than, kg 7 30 50 70 100 120
Operating temperature, ° С 20 ± 5
Relative air humidity at 25 ° C,% 80

High voltage voltage divider DVE-100

The high-voltage voltage divider DVE-100 is designed for large-scale conversion of high-voltage DC to 100 kV in metrological laboratories at an ambient temperature of 23 ± 5 ° С and a relative humidity of not more than 80%.

DC Input Voltage (1...100) кВ
Input divider resistance (500 ± 1) IΩ
Nominal fission factors and output impedances 10 000; 100 000
Deviation of the division coefficients from the nominal value at a voltage of 1 kV, an ambient temperature of 23 ± 1 ° С not more than 0.01%
The change in the fission factors when the input voltage varies up to 100 kV not more than 0.005%
The change in the fission factors when the temperature of the ambient air varies within the limits (23 ± 5) ° C not more than 0.005%
Insulation resistance between the measuring circuit of the divider and the lower screen not less than 100 GOhm
Dimensions of the divider 235 x 300 x 630 mm
Divider weight not more than 13 kg

MEASURING TRANSDUCER OF HIGH VARIABLE VOLTAGE IPVN

It is designed to accurately convert (divide) high voltage into low voltage, consistent with the input voltage of secondary measuring devices (voltmeters, ADCs)

Application area:

Mechanical engineering, power engineering (transformer substations, railway transport (electric trains).

Specifications IPVN - 10 IPVN - 25 IPVN - 35
Operating voltage, kV 0 - 10 0 - 25 0 - 35
Operating frequency range, kHz 0 - 2000
Unit error,% 0, 1
Angular error (0-200 Hz), min. 5
Output voltage from the series, V 2, 5; 5
Temperature, ° C - normal operating conditions + 5 ÷ + 40
Temperature, ° C - operating conditions - 40 ÷ + 70
Overall dimensions, mm 220 x 220 x 500
Weight, no more than, kg 10
Price Negotiable, depending on the amount of the order

A series of electronic voltage transformers (high voltage voltage dividers) EMVT

Distinctive features:

  • shielded
  • high input resistance 1-2 GOhm
  • resistive
  • high accuracy
  • yhroughput capacity less than 0.5 pF
  • small size and weight

EMVT-DC Electronic voltage transformers
Specifications

Operating voltage 3...100 кВ
Coefficient of division any, by request
Error 0.005 ... 0.05%
Temperature coefficient less than 10 ppm / K

EMVT-АС Electronic transformers of alternating voltage
Specifications

Operating voltage 3...100 кВ
Operating frequency 50±0,5 (60±0,5) Гц
Coefficient of division any, by request
Error 0,05...0,5%
Angular error 3...20 мин
Temperature coefficient less than 25 ppm/K

EMVT-HF Electronic voltage transformers, pulse and broadband
Specifications

Operating voltage 3...100 кВ
Operating frequency 0...10000 Гц
Upper operating frequency (3 dB) 50...1000 кГц
Coefficient of division any, by request
Error 0,1...1,0%
Angular error 3...20 мин
Temperature coefficient less than 25 ppm/K

years
of
work
M km
TOTAL LENGTH
MANUFACTURED
WIRES
µm
DIAMETER
OF MICROWIRES
LESS THAN 1 MIC

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