M210/M211

Voltage Transformer Test Set

Voltage Transformer Test Set M210/M211 measures voltage transformer (VT) errors with the method based on high voltage capacitance bridge. This method provides accurate measurement of the VT errors in continuous ranges of primary and secondary voltages. The method allows to decrease dimensions and weight of the equipment significantly

M210/M211 can also be used as a capacitive high-voltage bridge for measuring capacitance and dissipation factor (tanδ) during testing of high voltage equipment *

 

* Additional function. Can be supplied upon customer’s request

FEATURES AND BENEFITS

  • Measurement of VT errors in continuous ranges of primary and secondary voltages
  • High measurement accuracy (VT testing): up to ± 0,005 % and ± 0,3 min
  • High measurement accuracy (С&tanδ testing): up to ± 0,005 % (Cx) and ± 0,00005 (tanδ)
  • Measurement of true RMS values of primary and secondary voltages, THD and n-th harmonic ratios (up to 40-th) measurement
  • A more cost-effective solution than combination of standard voltage transformers or voltage divider and comparator
  • Easy handling
  • Small size and low weight

APPLICATIONS

M210/M211 is used by:

  • Manufacturers of Voltage Transformers
  • On-site Voltage Transformer testing
  • Calibration Laboratories
  • Metrology Institutes

 

* Additional function. Can be supplied upon customer’s request


VERSIONS

Voltage Transformer Test Set M210/M211 is available in six versions, which differ in accuracy class and maximum primary voltage. More details of the M210/M211 versions are given in the tables of technical ranges of primary and secondary voltages

M210/M211 versionPrimary voltage range (U1), kV Secondary voltage range (U2), VRated voltage of High Voltage Capacitors (UCH), kV
M210.10,01…450,6…100045
M211.1
M210.20,01…100100
M211.2
M210.30,01…230230
M211.3

TEST ARRANGEMENT

Fig.1 VT testing

Fig. 2 С&tanδ testing*

Measurement ranges and error limits of VT Test Set M210 – VT testing

Name

Measurement rangeLimits of absolute measurement error

Additional conditions

Ratio error, ε– 100 % ≤ ε ≤ 100 %± 0,015 %

|Δφ| ≤ 100 min

 

300 V ≤ U1 ≤ UСH,

6 V ≤ U2 ≤ 1000 V

± 0,05 %

|Δφ| ≤ 100 min

 

100 V ≤ U1 < 300 V,

6 V ≤ U2 ≤ 1000 V

± 0,1 %|Δφ| > 100 min

100 V ≤ U1≤ UСH,

6 V ≤ U2 ≤ 1000 V

± 0,5 %10 V ≤ U1 < 100 V and/or 0,6 V≤ U2< 6 V
Phase displacement, Δφ– 300 min ≤ Δφ ≤ 300 min± 1 min|Δφ| ≤ 100 min

300 V ≤ U1 ≤ UСH,

6 V ≤ U2 ≤ 1000 V

± 3 min|Δφ| ≤ 100 min

100 V ≤ U1 < 300 V,

6 V ≤ U2 ≤ 1000 V

± 5 min

|Δφ| > 100 min

 

100 V ≤ U1 ≤ UСH,

6 V ≤ U2 ≤ 1000 V

± 10 min10 V ≤ U1< 100 V and/or 0,6 V ≤ U2< 6 V
Relative value of secondary voltage, US/ USr2…190 %± 1 %*0,6 V ≤ U2≤ 1000 V
Test voltage frequency, f49…51 Hz**± 0,02 Hz

Measurement ranges and error limits of VT Test Set M211 – VT testing

Name

Measurement rangeLimits of absolute measurement error

Additional conditions

Ratio error, ε– 100 % ≤ ε ≤ 100 %± 0,005 %|Δφ| ≤ 30 min

300 V ≤ U1 ≤ UСH

6 V ≤ U2 ≤ 1000 V

± 0,01 %

 

30 min< |Δφ| ≤100 min
± 0,05 %|Δφ| ≤ 100 min

100 V ≤ U1 < 300 V,

6 V ≤ U2 ≤ 1000 V

± 0,1 %|Δφ| > 100 min
± 0,5 %10 V ≤ U1< 100 V and/or 0,6 V≤ U2< 6 V
Phase displacement, Δφ– 300 min ≤ Δφ ≤ 300 min± 0,3 min|Δφ| ≤ 30 min

300 V ≤ U1 ≤ UСH,

6 V ≤ U2 ≤ 1000 V

± 1 min30 min< |Δφ| ≤100 min
± 3 min|Δφ| ≤ 100 min

100 V ≤ U1 ≤ 300 V,

6 V ≤ U2 ≤ 1000 V

± 5 min|Δφ| > 100 min

100 V ≤ U1 ≤ UСH

6 V ≤ U2 ≤ 1000 V

± 10 min10 V ≤ U1< 100 V and/or 0,6 V ≤ U2 < 6 V
Relative value of secondary voltage, US/ USr2…190 %± 1 %*0,6 V ≤ U2≤ 1000 V
Test voltage frequency, f49…51 Hz**± 0,02 Hz

Measurement ranges and absolute error limits of VT Test Set M210 –  С&tanδ testing

СХ0

Limits of relative measurement error of δC, %

Limits of absolute measurement error of dissipation factor Δtanδ

Test current , А
0,01…0,1

±[1×10-2 +2×10-4×(C0/CX  -10) +|tanδX – tanδ0|]

±[1×10-4 + 2×10-6×(C0/CX  -10) +0,005×| tanδX – tanδ0|]

up to 0,2
0,1…103±[1×10-2 + |tanδX – tanδ0|]±[1×104 + 0,005×|tanδX – tanδ0|]

 

Measurement ranges and error limits of VT Test Set M211 –  С&tanδ testing

СХ0

Limits of relative measurement error of

δC, %

Limits of absolute measurement error of dissipation factor Δtanδ

Test current , А
0,01…0,1

±[5×10-3 +2×10-4×(C0/CX – 10) +|tanδX – tanδ0|]

±[5×10-5 + 2×10-6×(C0/CX – 10) +0,005×| tanδX – tanδ0|]

up to 0,2
0,1…103±[5×10-3 + |tanδX – tanδ0|]±[5×105 + 0,005×|tanδX – tanδ0|]

 

Measurement ranges and error limits of VT Test Set M210/M211 – voltage parameters testing

NameRangeError limitsAdditional conditions
True RMS voltage, VU1300…UСHdU =  ±0,5 %Сн using
U210…1000

First harmonic true RMS voltage, V

U11300…UСHdU =  ±0,5 %Сн using
U2110…1000
Primary voltage THD (KU1), %0…20ΔKu1 = ±0,2 %Сн using at KU1<2
dKu1 =±10 %Сн using at KU1≥2
Secondary voltage THD (KU2), %0…20ΔKu2 = ±0,2 %at KU2<2
dKu2 =±10 %at KU2≥2
Primary voltage nth harmonic ratio (KU1(n)), %0…15ΔKu1(n) = ±0,05 %Сн using at KU1(n)<1
dKu1(n) =±5 %Сн using at KU1(n)≥1
Secondary voltage nth harmonic ratio (KU2(n)), %0…15ΔKu2(n) = ±0,05 %at KU2(n)<1
dKu2(n) =±5 %at KU2(n)≥1
Frequency (f), Hz49…51±0,02
Power mains:
Measuring unitbuilt-in rechargeable battery
Charging and Calibration power supply unit220/230 V, 50 Hz
Operating Temperature-10 … 40 °С
Relative Humidityup to 80% non-condensing
Size, mmMeasuring unit

HV capacitor

45 kV

100 kV

230 kV

250 x 350 x 185

170 x 425

260 x 610

390 x 995

Weight, kg

10

7

17

55

Standards

Safety

EMC

 

EN 61010-1:2010

EN 61326-1:2013

Calibration interval3 years recommended

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