• Delivery RET-3000in stock
  • Warranty 5 years
  • Price on-demand

RET-3000

Loading transformer, serves for increasing the output current up to 3500 A

Having considered the previous experience with RETOM-11 and our customers' wishes we at Dynamics Ltd designed a loading transformer RET-3000. This transformer gives the maximally possible current with the maximally possible readings.

The loading transformer RET-3000 works together with RETOM-11M and serves for increasing the output current up to 3500 A. Therefore it is a necessary element of the testing system RETOM-11M if performing the following tests:

  • ratio test, current transformer phase angle and polarity measurement
  • testing of low voltage circuit breakers with primary current
  • current protection tests of low voltage circuit breakers
  • testing of direct mode current protection with primary current
  • testing of primary and secondary electrical equipment within RETOM-11M and RET-3000 current and power operating limits.
 
INPUT PARAMETERS

Input voltage [V]

~ (0 - 220)

Input signal voltage frequency [Hz]

45 - 65

Maximum input current [A]

30

Number of turns of the primary winding

200

OUTPUT PARAMETERS

Output current [A]

3500

3000

2000

1500

1500

1000

750

500

Turn ratio

1:200

1:100

1:100

1:100

1:50

1:50

1:25

1:25

Output off-load voltage [V]

1,1

2,2

2,2

2,2

4,4

4,4

8,8

8,8

Load voltage, > [V]

0,57

1,20

1,60

1,67

2,67

3,20

5,33

6,40

Load resistance, < [MOhm]

0,16

0,40

0,80

1,11

1,78

3,20

7,11

12,80

Input current [A]

17,5

30

20

15

30

20

30

20

Input power [Wt]

3850

6600

4400

3300

6600

4400

6600

4400

Output power, > [Wt]

2000

3600

3200

2500

4000

3200

4000

3200

Number of turns of the secondary winding

1

2

2

2

4

4

8

8

Number of parallel cables

8

4

4

4

2

2

1

1

Number of series cables

1

1

1

1

2

2

4

4

Total section of the cables of the secondary circuit, mm2

760

380

380

380

190

190

95

95

Length of the output cable terminals [m]

0,8

0,5

0,5

0,5

1,5

1,5

2,4

2,4

Maximal current generation time [sec]

25

5

25

25

5

25

5

25

GENERAL PARAMETERS

External insulation resistance [MOhm]

20

Test voltage for external insulation electrical strength [kV]

1,5

Dimensions without cables [mm]

Ø 240 х 90

Transformer weight with cables and connectors [kg]

36

OPERATING CONDITIONS
 

Operating temperature range [°C]

- 30 ... + 50

Normal temperature [°C]

20 ± 5

Relative humidity at 25 °C [ % ]

80

Atmospheric pressure [kPa]

84 - 106,7

Operating condition code according to GOST 17516.1

М23

Protection degree according to GOST 14254

IP20

Electric shock protection class according to GOST 1 2.2.007.0

II

RELIABILITY

Life expectancy [years]

10

Mean time to failure [hours]

10000

Expectant recovery time including the failure diagnostics time [hours]

0,5

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