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Used Hammond Current Transformer (Ct)

Trusted Seller
Hammond 2VA Transformer
- Manufacturer: Hammond
Savona, Canada
Trusted Seller
HAMMOND MANUFACTURING 135798
- Manufacturer: Hammond
- Phase type: Single-phase
Kva: 3 kVA | Phase: Single-phase | Transformer type: Current Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Primary voltage: 575/546V | Secondary voltage: 300V
$432 USD
British Columbia, Canada
Trusted Seller
HAMMOND POWER SOLUTIONS INC. TE3A0020NNM
- Manufacturer: Hammond
- Phase type: Three-phase
Kva: 20 kVA | Primary voltage: 575 Volts | Secondary voltage: 575Y/332 Volts | Phase: 3-phase | Transformer type: Current Transformer | Auto vs isolation: Isolation | Oil vs dry: Dry | Enclosure type: Nema 3R | ...
$1,820 USD
British Columbia, Canada
Neco Hammond TRANSFORMER 127415 X13550057-03 750Va / 60 HZ (1B-09)
- Manufacturer: Hammond
Neco TRANSFORMER 127415 X13550057-03 **new*** - spare part from a project – seated on the shelf for a long time Palmetto Automation Inc. of Duncan SC specializes in buying, selling, and repairing obsolete Used,...
Duncan, SC
Trusted Seller
HAMMOND 1.2 KV Current Transformer RM0035P80 #59010
- Manufacturer: Hammond
Three Phase Dry Type Iron Core Reactor Induct .80 mH 60 Hz Max 35 Amps 1.2 kV Expedited shipping services are available This piece is located at Ideal Machinery, Inc. on our showroom floor. Located at: 10230 N....
$80 USD
Warehouse
Trusted Seller
HAMMOND 1.2 KV Current Transformer RM0035P80 #59011
- Manufacturer: Hammond
Three Phase Dry Type Iron Core Reactor Induct .80 mH 60 Hz Max 35 Amps 1.2 kV Expedited shipping services are available This piece is located at Ideal Machinery, Inc. on our showroom floor. Located at: 10230 N....
$80 USD
Warehouse
Trusted Seller
HAMMOND 1.2 KV Current Transformer RM0035P80 #56696
- Manufacturer: Hammond
Three Phase Dry Type Iron Core Reactor Induct .80 mH 60 Hz Max 35 Amps 1.2 kV Expedited shipping services are available This piece is located at Ideal Machinery, Inc. on our showroom floor. Located at: 10230 N....
$80 USD
Warehouse
Trusted Seller
HAMMOND Current Reactor 185C20 #101881
- Manufacturer: Hammond
1-2 115 Volt, 50/60 Hz 5-6: 115 Volt, 25 VA 7-8: 10 Volt, 1.25 Amp 11-12: 10 Volt, 1.25 Amp Expedited shipping services are available This piece is located at Ideal Machinery, Inc. on our showroom floor. Locate...
$7 USD
Warehouse

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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.