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Used Current Transformer (Ct) in Poland

SIEMENS 4AM6591-0EB50-1N Transformer 2.2 kVA PRI 400V SEC 230V .de
- Manufacturer: Siemens
SIEMENS 4AM6591-0EB50-1N Transformer 2.2 kVA PRI 400V SEC 230V Description in German The Siemens control transformer (transformer station) 4AM6591-0EB50-1N is used to safely provide the required secondary voltage...
Bialogard, Poland
Transformer One phase Autotransformer EMB NTTspM0,16 , 0,44 kVA .de
- Manufacturer: EMB
Transformer One phase Autotransformer EMB NTTspM0,16 , 0,44 kVA Used. Comes from a working device. / Used. Comes from a functioning device. Untested / Untested For EU VAT payers, the price is exclusive of VAT. / ...
Bialogard, Poland
Transformator Tramag DR3-40-4-0300 9,2V , 246A .de
- Manufacturer: Tramag
Transformator Tramag DR3-40-4-0300 9,2V , 246A Used. Comes from a working device. / Used. Comes from a functioning device. Untested / Untested For EU VAT payers, the price is exclusive of VAT. / For EU value-adde...
Bialogard, Poland
Transformator Tramag DR3-40-4-0400 9,2V , 328A .de
- Manufacturer: Tramag
Transformer Tramag DR3-40-4-0400 9.2V , 328A Used. Comes from a working device. / Used. Comes from a functioning device. Untested / Un Tested For EU VAT payers, the price is exclusive of VAT. / For EU VAT payers ...
Bialogard, Poland
Michael Riedel RDRKN RDRKN 16K Transformer 3x380-400-420V .de
- Manufacturer: Michael Riedel
Michael Riedel RDRKN RDRKN 16K Transformer 3x380-400-420V Used. Comes from a working device. / Used. Comes from a functioning device. Untested / Untested For EU VAT payers, the price is exclusive of VAT. / For EU...
Bialogard, Poland
Jacket EM 1.6 kVA EM1,6400230 one phase transformer 400V-230V .de
- Manufacturer: Jacke
Jacket EM 1.6 kVA EM1,6400230 one phase transformer 400V-230V Used. Comes from a working device. Untested For EU VAT payers, the price is exclusive of VAT.
Bialogard, Poland
Siemens 4EP4003-8DS, Control Power Transformer 2.5kV 21A .de
- Manufacturer: Siemens
Siemens 4EP4003-8DS, Control Power Transformer 2.5kV 21A Used. Comes from a working device. / Used. Comes from a functioning device. Untested / Untested For EU VAT payers, the price is exclusive of VAT. / For EU ...
Bialogard, Poland
Setzermann BV 65B1010 Current Transformer .de
- Manufacturer: Setzermann
Setzermann BV 65B1010 Current Transformer Used. Comes from a working device. / Used. Comes from a functioning device. Untested / Untested For EU VAT payers, the price is exclusive of VAT. / For EU value-added tax...
Bialogard, Poland
Siemens 4AM5742-5AT10-0FA0, isolation transformer 1 kVA 400V to 230V .de
- Manufacturer: Siemens
- Model: 4AM5742
Siemens 4AM5742-5AT10-0FA0, transformer 1.0 kVA 400 V to 230 V Description in German Monophase Siemens transformer for voltage adjustment and supply of control and auxiliary circuits. Converts a three-stage selec...
Bialogard, Poland
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2003 Moeller GA 3K
- Manufacturer: Klöckner Moeller
SF6 gas-insulated 10 kV block switchgear type GA3K, rated short-circuit current 20 kA - Supplier: Moeller (F&G) - Year of manufacture 2003 - Dimensions (WxDxH) 1380 mm x 700 mm x 1400 mm - Weight approx. : 500 kg...
Bialogard, Poland
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Power Conditioner Powervar 2000 GPI , ABC10.0-40D40Y
- Manufacturer: AMETEK Powervar
Product description POWER CONDITIONER POWERVAR 2000 GPI,ABC10.0-40D40Y Technical data IN GOOD OPTICAL CONDITION. SOLD AS USED AND NOT TESTED. NO RETURN, NO WARRANTY. IN GOOD VISUAL CONDITION. SOLD AS USED AND NOT...
$2,079 USD
Bialogard, Poland
Current Transformer 2000/5A 20VA CL.1 16542
Current transformer 2000/5A 20VA CL.1 16542
Warsaw, Poland

Overview

Current transformers (CTs) convert high alternating currents into a scaled secondary current for meters, relays and protection systems. Available as window, wound or bar types, CTs vary by ratio, accuracy class and saturation behavior. Proper selection focuses on rated primary current, burden, insulation, knee-point for protection use, and condition when buying used for substations, switchgear, or industrial panels.

FAQ

What should I check when buying a used CT?

Verify the nameplate ratio and accuracy class, inspect for physical damage or oil leaks, request recent ratio and insulation test reports, and confirm the CT type (wound/window/bar) and its knee-point if used for protection.

How should a CT be prepared and shipped safely?

Drain and seal oil-filled CTs if required, protect bushings and cores, short and ground the secondary terminals, secure the unit to prevent shock, and use a carrier experienced with electrical equipment plus insurance.

What routine maintenance and tests are essential for CTs?

Perform visual inspections, insulation resistance tests, ratio and polarity checks, check for oil contamination on liquid-filled units, and schedule periodic accuracy and dielectric tests per manufacturer guidelines.