• Delivery RETOM-25in stock
  • Warranty 5 years
  • Price on-demand

RETOM-25 is a new system in RETOM product range, which has all the functionality of RETOM-21, but is light in weight (19 kg) and compact (340х430х205 mm).

Application

RETOM-25 is irreplaceable for test and adjustment of the following primary and secondary equipment:

  • all types of electro-mechanical relays (directional and non-directional current relays, voltage, resistance, power, frequency, time, indication, auxiliary and other relays),
  • micro-processor protections 6-10-35 kV,
  • residual current circuit-breakers,
  • measuring current transformers,
  • measuring voltage transformers,
  • grounding equipment,
  • auto-reclosers,
  • high-voltage circuit-breakers,
  • automatic circuit-breakers,
  • low-voltage control devices,
  • contactors, electromagnetic actuators, etc.

Main advantages:

  • max. output current of 200 A – enables tests of all relay types, measuring of transformation ratio and polarity of current transformers;
  • max. power of 5000 VA – output power of the device for operation with additional modules RET-3000 and RET-VAH-2000;
  • output voltage of 250 V – operation in 220 V networks, taking volt-ampere characteristics of measuring current transformers with saturation voltage of 250 V;
  • compact and convenient in use – device can be easily transported thanks to its low weight (19 kg only) and small dimensions, removable cover enables its use both in vertical and horizontal position;
  • expansion of device functionality by using  RET-3000 loading transformer, RET-DT current converter, RET-VAH-2000 transformer module, RETOM-6000 insulation tester, RETOMETR-M2 volt-ampere-phase-meter;
  • accurate measurements – available electronic controller enables setting values of output parameters with small step (0.1% of selected range), which ensures obtaining more accurate measurement results. Additional indicators enable determining of controller current position;
  • a wide range of measurements of delivered and external current, voltage, frequency, phase angle, all types of time characteristics (operation, reset, duration, time diversity, bounce) of different relays and switching devices, determination of impedance, resistance and reactance, apparent, active and reactive power;
  • various measuring methods: based on amplitude, half-period average value, true RMS, with first harmonic distinguishing (50 Hz);
  • phase and frequency control: capability of controlling phase angle between two sources enables test of directional protections (power relays, resistance relays, etc.), as well as synchronization systems;
  • capability of frequency variation within a wide range (20-1000 Hz) enables test of filter relays, high setting accuracy (0.001 Hz) enables test of frequency relays, while frequency variation rate control (df/dt) enables AFLS and FAR test;
  • auxiliary power supply source (220 W) enables test of RPA devices in autonomous mode at rated, reduced and increased voltages (176 - 260 V);
  • computer control – device can operate both in autonomous mode and under PC control. Software included into the delivery kit contains “Manual control” module for fully functional control of RETOM-25 basic components, as well as automatic test programs for most relay types (current, voltage, power, frequency relays) and taking volt-ampere characteristics of measuring current transformers;
  • verification interval of 4 years.

Delivery Kit

Delivery kit of RETOM-25 tester includes:

  • RETOM-25 relay protection parameter measuring device,
  • network cable,
  • spare tools and accessories kit,
  • set of documents according to the list,
  • technical passport,
  • operation manual,
  • spare tools and accessories list,
  • verification methods.

At customer’s request, the following can be included into the delivery kit:

  • RET VAH-2000 instrument transformer module,
  • RET-3000 loading transformer,
  • RETOM-6000 insulation electrical strength and resistance measuring device,
  • RETOMETR-M2 digital volt-ampere-phase-meter,
  • SPP-80/2 movable mounting rack, which performs transportation cart function and enables convenient workplace arrangement.

Warranty

SPE “Dynamics” guarantees high quality and reliability of RETOM-25 tester within 5 years from the date of delivery.

Source 2. “~U2” OUTPUT. Adjustable AC voltage

Parameter

Value

Operation range, to be selected in the menu

10

65

250

Output voltage control ranges, V

0 – 10

0 – 65

0 – 250

Output current control ranges, A

0 – 10

0 – 1.5

0 – 0.6

Max. output signal-based setting resolution, %, max.

0.2

Output power, V?A, min.

 

- long-time3)

100

- during 5 s

150

Non-linear distortion factor, %, max.

1.0 5)

Simulated signal frequency ranges4), Hz

20 – 45

over 45 – 55

over 55 – 1000

Frequency variation resolution, Hz, max.

0.5

0.001

0.5

Permissible absolute frequency simulation error limits, Hz:

±0.5

±0.001

±0.5

Voltage and current signal phase angle variation range, °

0 – 360

Phase angle variation resolution, °

0.3

Permissible absolute phase angle simulation error limits, °

±1.0

Output circuit protection against short-circuit, overload and overheating

+

Output circuit protection against external voltage, V rms, max.

With power of 1000 VA max.

12

75

264

Output time of 10 minutes max., at mains voltage of 230 V min.

When signal frequency decreases below 45 Hz and exceeds 200 Hz, output power and output signal level decrease.

At max. output power there can be output signal distortions up to 5%.

Source 3. “~U3”, “=U4”, “~U5”, “~U6” OUTPUTS.

Parameter

Value

Simulated current and voltage signal frequency

(mains frequency), Hz

45 – 65

Output circuit protection against short-circuit, overload and overheating

+

Source 3. “~U3” OUTPUT. Adjustable AC current or voltage

Parameter

Value

Operation range, to be selected in the menu

"250 V"

"50 V"

Current control ranges, A

0 – 6

0 – 30

Voltage control ranges, V

6 – 250

1.0 – 50

Output power, V×A, min.:

 

- continuously6)

1000

- during 1 minute

12007)

- during 10 s

14007)

Source 3. “=U4” OUTPUT. Adjustable DC or rectified (unsmoothed) voltage

Parameter

Value

Operation range, to be selected in the menu

"U4 Output"

Item in operation menu for DC of Source 3

"Rectified"

"Smoothed"

Type of current

rectified

DC

Voltage control range, V

8 – 250

10 – 350

Current control range, A

0 – 3

0 – 2

Switching current, A

2

0.5

Voltage ripple excursion of set value, %,

at output voltage of 220 V, max.:

   

- at current 1 A

10

- at current 2 A

15

Long-time output power6), W, min.

750

700

Source 3. “~U5” OUTPUT. Adjustable AC current

Parameter

Value

Operation range, to be selected in the menu

150 А

Voltage control range, V

0 – 7.5

Output power, V×A, min.:

 

- continuously6)

1000

- during 1 minute

12007)

- during 5 s

14007)

Output current, A, min.:

 

- continuously6)

130

- during 1 minute

1507)

- during 5 s

2007)

Source 3. “~U6” OUTPUT. Adjustable AC voltage

Parameter

Value

Operation range, to be selected in the menu

U6 Output

Output voltage control range6), V

5 – 215

Output current, A, min.:

 

- continuously6)

10

- during 5 s

207)

- during 0.5 s

307)

Output power, V×A, min.:

 

- continuously6)

2000

- during 1 minute

22007)

- during 5 s

40007)

- during 0.5 s

50007)

Source 3. Ballast resistance (BR).

Parameter

Value

Resistance, Ohm

0

330

Permissible operation time

continuously

min. 1 minute

Parameters are achieved in continuous mode (max. output time of 10 minutes), at mains voltage of 220 V min. and max. output voltage.

At mains voltage of 230 V min.

Note – At signal level below 5% there can arise distortions.

EMBEDDED DIGITAL MULTI-METER

Parameter

Value

 

Type of current

DC / AC

 

Ammeter

 

Current measuring unit resolution, A

0.0001

0.001

0.01

0.1

 

Source 1 (I1) DC current measurement limits8), A

-

2.09)

-

-

 

PA Input AC current measurement limits8), A

0.1

1.0

10

-

 

Source 2 (I2) AC current measurement limits8), A

0.2

2.0

20

-

 

Source 3 (I3) AC current measurement limits8), A

0.5

5.0

50

-

 

Source 3 (I4) DC current measurement limits8), A

0.5

5.0

 

-

 

Source 3 (I5) AC current measurement limits8), A

-

-

50

500

 

Min. permissible value of measured parameter, % of measurement limit

10

 

Permissible reduced basic current measurement error limits for “2 A” limit (Source 1), %

2

 

Permissible absolute basic current measurement error limits, A:

   

- for 50 A, 500 A limits of U5 output

± [0.01x+0.001 Xe ]

 

- for other limits (apart from 2 A (I1), 50 A, 500 A (I5))

± [0.005x+0.0005 Xe]

 

Min. current measurement time, ms

110)

 

Limits of permissible complementary current measurement error caused by ambient temperature variation do not exceed 0.5 of basic error limit per every 10 °С

 

Limits of permissible complementary current measurement error caused by frequency deviation with respect to rated frequency (50 Hz) do not exceed 0.1 of basic error limit per 10 Hz of deviation

 

Voltmeter

 

Voltage measurement limits8), V

6

600

 

Voltage measuring unit resolution, V

0,001

0,1

 

Min. voltage measurement time, ms

110)

 

Min. permissible value of measured parameter, % of limit

1

 

Input overload capacity, %, of limit

130

 

Permissible absolute basic voltage measurement error limits, V

± [0.005x+0.0005 Xe]

 

Voltmeter input resistance, kOhm, min.

1000

 

Limits of permissible complementary voltage measurement error caused by ambient temperature variation do not exceed 0.5 of basic error limit per every 10 °С

 

Limits of permissible complementary voltage measurement error caused by frequency deviation with respect to rated frequency (50 Hz) do not exceed 0.1 of basic error limit per 10 Hz of deviation

 

Frequency meter

 

Frequency measurement ranges by voltage input, Hz

20 - 45

over 45 - 55

over 55 -1000

 

Frequency measurement resolution, Hz

0.01

0.001

0.1

 

Permissible absolute frequency measurement error limits within operating voltage measurement ranges, Hz

± 0.05

± 0.005

± 0.5

 

Min. permissible voltage level value during frequency measurement, mV

600

 

Phase meter

Phase angle between two voltages, voltage and current, two currents measurement range, °

0-360

Phase angle measurement resolution, °

0.1

Permissible absolute phase angle between two voltages, voltage and current, two currents measurement error limits within operating current and voltage measurement ranges, °

± 1.0

Min. permissible voltage level value during phase measurement, mV

600

Limits of permissible complementary phase angle measurement error caused by ambient temperature variation do not exceed basic error limit per 10 °С

 

Note – Phase angle is measured only within mains frequency deviation of 45-55 Hz. Measurement is taken only for basic harmonic signals.

 

Additionally calculated parameters

Active power

P

Reactive power

Q

Apparent power

S

Resistance

Z

- active component

R

- reactive component

XL/XC

Loss tangent

TG

Power factor (cos φ)

CОS

Measurement error of additional rated parameters is combined of errors of basic measured parameters and determined as square root of the sum of squares.

Upper measurement range limit is given. Measurement limit of corresponding parameter is selected in the menu of the device. On default, automatic switch between measurement ranges – AUTO mode – is set in the menu for each parameter.

Ammeter capability to display measured values is limited by max. simulation capabilities of corresponding current source.

Measurement of parameters with set error is enabled at measurement time over 320 ms.

Note – The following notation is accepted in absolute error formulae:

Xe – end value of measurement range (limit) of corresponding parameter;

x – measured value of corresponding parameter.

EMBEDDED DIGITAL SECOND TIMER

Parameter

Value

Time interval measurement ranges

0.0 –

999.9 ms

1.000 –

9.999 s

10.00 – 99.99 s

100.0 – 999.9 s11)

1000 – 9999 s11)

Resolution

0.1 ms

0.001 s

0.01 s

0.1 s

1 s

Permissible absolute time interval measurement error limits

±0.5 ms

±0.01 s

±0.1 s

±1 s

Time parameter measurement capability:

 

- operate time

+

- reset time

+

- closed (open) state duration

+

- contact operate/reset time diversity

+

- contact bounce time

+

Binary inputs:

 

- type of binary inputs

“dry contact”;

contact with potential up to + 300 V

- initial current inrush, mA, min.

50

Binary output:

 

- type of binary outputs

contact with load capacity

up to ~5 A, 250 V and =5 A, 30 V

- switching capacity at DC voltage within range 24 … 250 V and active load, W, min.

30

11) Metrological performance is not rated over 99.99 s. Typical error is specified.

ADDITIONAL FUNCTIONS

Parameter

Value

Source 3 operation single pulse mode

 

- single pulse output time variation range

20 – 100 ms with 20 ms step

100 – 1000? ms with 100 ms step

1 – 10? s with 1 s step

- factory setting, ms

100

Source 3 operation pulse mode

 

- pulse output and pause time variation range

20 – 100 ms with 20 ms step

100 – 1000? ms with 100 ms step

1 – 5? s with 1 s step

- output time factory setting, ms

500

- pause time factory setting, s

5

Measurement in pulse modes

 

- whole range 20 ms – 10 s

any manual measurement limit

- for range 20 – 300 ms

"6 V" limit of PV1, PV2 inputs;

"500 A" limit of I5 output;

"10 A" limit of PA input

- for range 400?ms – 10 s

all limits of U3-U6, I3, I5 outputs;

PV1, PV2, PA inputs

Current-based recording (from PV1, PV2, PA, I2, I3, I5 measuring units)

 

- count stop signal for PV1 and PV2 inputs

("6 V" default limit)

voltage reduction to 0.1 limit level (0.6 V for "6 V" limit)

- count stop signal for PA input and I2, I3, I5 outputs

current reduction to 0.1 limit level (1 A for "10 А" limit)

- measurement resolution, ms

2.5

Second timer input contact vibrations insensitivity filter:

 

- time constant variation range, ms

1 – 40

- factory setting, ms

3

Contact bounce time measurement:

 

- contact closing recording delay variation range, ms

0.1 – 10.0

- factory delay setting, ms

1.0

Note – Pulse mode time interval values are given for mains frequency of 50 Hz.

OPERATING CONDITIONS

Parameter

Value

Operating temperature range, °С

- 20 … + 50

Temperature of normal conditions, °С

20 ± 5

Transportation temperature, °С

- 50 … + 70

Storage temperature, °С

- 50 … + 70

Relative humidity, %, max.

95

Atmospheric pressure, kPa

73.3 …106.7

Altitude above sea level, m, max.

2000

Operating conditions group as per GOST 17516.1-90

М23

Device power supply:

 

- single-phase mains frequency, Hz

45 – 65

- mains voltage, V

187 – 264

GENERAL SPECIFICATIONS

Parameter

Value

Protection degree as per GOST 14254-96:

 

- enclosure

IP20

- output terminals

IP00

Safety requirements as per GOST 12.2.091-2012:

 

- insulation

basic

- measurement category (overvoltage category)

CAT II

- microenvironment contamination degree

2

Insulation electrical strength test voltage11), V:

 

- mains power supply circuits to enclosure

1500

- conductive components of Source 1, Source 2 to mains power supply circuits / enclosure

1500

- conductive components of Source 3 to mains power supply circuits / enclosure

- PV1, PV2 multi-meter inputs to mains power supply circuits / enclosure

1500

1500

- “К1”, “К2” second timer inputs to mains power supply circuits / enclosure and to each other

1500

between conductive components (to each other)

1500

Insulation resistance between enclosure and galvanically isolated conductive components of the device, MOhm, min.

40

Electric shock hazard protection

GOST 12.2.007.0-75 Class I

EMC requirements

GOST R 51317.6.5-2006

Rated power consumption, V ×A, max.

3000

Current consumption, A, max.

30

Weight, kg, max.

19

Overall dimensions, mm, max. (hхwхd)

340 × 430 × 205

11) AC voltage, frequency of 50 Hz

RELIABILITY CHARACTERISTICS

Parameter

Value

Mean lifetime of devices, years, min.

30

Mean time between failures, hours, min.

25 000

Mean time to recovery including fault tracing (by a licensed specialist) time, hours, max.

3

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