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

Description

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 version Primary voltage range (U1), kV Secondary voltage range (U2), V Rated voltage of High Voltage Capacitors (UCH), kV
M210.1 0,01…45 0,6…1000 45
M211.1
M210.2 0,01…100 100
M211.2
M210.3 0,01…230 230
M211.3

TEST ARRANGEMENT

VT testing

С&tanδ testing*

Technical specification

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

Name

 Measurement range Limits 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 min 10 V ≤ U1< 100 V and/or 0,6 V ≤ U2< 6 V
Relative value of secondary voltage, US/ USr 2…190 % ± 1 %* 0,6 V ≤ U2≤ 1000 V
Test voltage frequency, f 49…51 Hz** ± 0,02 Hz –

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

Name

 Measurement range Limits 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 min 30 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 min 10 V ≤ U1< 100 V and/or 0,6 V ≤ U2 < 6 V
Relative value of secondary voltage, US/ USr 2…190 % ± 1 %* 0,6 V ≤ U2≤ 1000 V
Test voltage frequency, f 49…51 Hz** ± 0,02 Hz –

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

СХ/С0

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|] ±[1×10–4 + 0,005×|tanδX – tanδ0|]

 

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

СХ/С0

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|] ±[5×10–5 + 0,005×|tanδX – tanδ0|]

 

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

Name Range Error limits Additional conditions
True RMS voltage, V U1 300…UСH dU =  ±0,5 % Сн using
U2 10…1000 –

First harmonic true RMS voltage, V

 U11 300…UСH dU =  ±0,5 % Сн using
U21 10…1000 –
Primary voltage THD (KU1), % 0…20 ΔKu1 = ±0,2 % Сн using at KU1<2
dKu1 =±10 % Сн using at KU1≥2
Secondary voltage THD (KU2), % 0…20 ΔKu2 = ±0,2 % at KU2<2
dKu2 =±10 % at KU2≥2
Primary voltage nth harmonic ratio (KU1(n)), % 0…15 ΔKu1(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…15 ΔKu2(n) = ±0,05 % at KU2(n)<1
dKu2(n) =±5 % at KU2(n)≥1
Frequency (f), Hz 49…51 ±0,02 –
Power mains:
Measuring unit built-in rechargeable battery
Charging and Calibration power supply unit 220/230 V, 50 Hz
Operating Temperature -10 … 40 °С
Relative Humidity up to 80% non-condensing
Size, mm Measuring 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 interval 3 years recommended

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