Electric Transformer
2009
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 Simpson Electrical Company Donut Current Transformer 505 Ratio 01293 $12.74 Time Remaining: 14d 14h 58m Buy It Now for only: $12.74 |
 SUPERIOR ELECTRIC 116CU POWER STAT VARIABLE TRANSFORMER NIB $40.00 Time Remaining: 1d 9h 18m |
 Jefferson Electric 6361141000 Machine Tool Transformer $29.99 Time Remaining: 4d 11h 15m Buy It Now for only: $29.99 |
 JEFFERSON ELECTRIC TRANSFORMER 500 KVA CAT 636 2491 Used WARRANTY $17.50 Time Remaining: 8d 9h 14m Buy It Now for only: $17.50 |
 RV 1223 GENERAL ELECTRIC 15 KVA 3 PHASE TRANSFORMER $200.00 Time Remaining: 18d 10h 20m Buy It Now for only: $200.00 |
 GENERAL ELECTRIC 9T58K2876 60HZ TRANSFORMER USED $30.00 Time Remaining: 24d 12h 9m Buy It Now for only: $30.00 |
 General Electric 5 kVA Transformer 9T22B4056 Warranty $175.00 Time Remaining: 5d 11h 15m Buy It Now for only: $175.00 |
 EGS Electrical E100E Class 105 Industrial Control Transformer 2002 95 EC $54.99 Time Remaining: 20d 10h 33m Buy It Now for only: $54.99 |
 Marcie Electric Transformer Disconnect MN 1000 100K 1000100K 1OOO 1OOK 1OOO1OOK $280.00 Time Remaining: 4d 17h 30m Buy It Now for only: $280.00 |
 Yoshikawa Electric BK0 C2231 Transformer BKO C2231 134VA 134 VA 400V BK0C2231 $20.00 Time Remaining: 14d 11h 37m Buy It Now for only: $20.00 |
 Hevi Duty Electric Transformer Y2000 Type SZO 2 KVA $100.00 Time Remaining: 20d 21h 5m Buy It Now for only: $100.00 |
 RV 1215 GENERAL ELECTRIC 15 KVA 3 PHASE TRANSFORMER $200.00 Time Remaining: 18d 10h 1m Buy It Now for only: $200.00 |
 Fern Electric Company Industrial Central Transformer $18.00 Time Remaining: 7d 12h 12m Buy It Now for only: $18.00 |
 Sola Electric 24V 6 Amp Power Transformer 83 24 260 2 $99.99 Time Remaining: 14h 29m Buy It Now for only: $99.99 |
 ACME ELECTRIC TA 1 81216 TRANSFORMER 750VA XLNT $44.00 Time Remaining: 1d 12h 39m Buy It Now for only: $44.00 |
 Nunome Electric Industrial Control Transformer NESB A $50.99 Time Remaining: 24d 18h 53m Buy It Now for only: $50.99 |
 Warner Electric Brake Clutch Power Supply Control with Transformer MCS 112 $200.00 Time Remaining: 29d 19h 52m Buy It Now for only: $200.00 |
 ACME ELECTRIC TA 1 81217 TRANSFORMER 1000VA XLNT $37.00 Time Remaining: 19d 10h 47m Buy It Now for only: $37.00 |
 RV 1224 GENERAL ELECTRIC TRANSFORMER $250.00 Time Remaining: 18d 10h 18m Buy It Now for only: $250.00 |
 SOLA ELECTRIC 23 13 060 2 USED CONSTANT VOLTAGE TRANSFORMER 23130602 $150.00 Time Remaining: 2d 9h 2m Buy It Now for only: $150.00 |
 Jefferson Electric Transformer $17.00 Time Remaining: 10d 13h 20m Buy It Now for only: $17.00 |
 SOLA ELECTRIC 23 13 030 2 USED CONSTANT VOLTAGE TRANSFORMER 23130302 $150.00 Time Remaining: 2d 8h 40m Buy It Now for only: $150.00 |
 Smart Electric Transformer 40VA 120 208 240 SE413 $19.99 Time Remaining: 24d 12h 14m Buy It Now for only: $19.99 |
 General Electric CR104PXG22 Transformer Lamp Socket W Lamp 120 Volts NEW $19.95 Time Remaining: 7h 39m Buy It Now for only: $19.95 |
 SOLA ELECTRIC Regulated Constant Voltage Power Supply Transformer $59.99 Time Remaining: 24d 13h 48m Buy It Now for only: $59.99 |
 ACME ELECTRIC TA 1 81215 TRANSFORMER $22.00 Time Remaining: 1d 13h 58m Buy It Now for only: $22.00 |
 MIDWEST ELECTRIC 4CT14 CURRENT TRANSFORMER $39.00 Time Remaining: 2d 20h 9m Buy It Now for only: $39.00 |
 JIC Electric Transformer Box M250 $85.00 Time Remaining: 18d 15h 7m Buy It Now for only: $85.00 |
 Fuji Electric FRC 5 26 CURRENT TRANSFORMER 5AMP 50 60HZ CLASS10 $52.99 Time Remaining: 24d 12h 43m Buy It Now for only: $52.99 |
 ISB Metal Electric Ballast AUTO TRANSFORMER $20.00 Time Remaining: 3d 21h 18m Buy It Now for only: $20.00 |
 ACME Electric TA 1 54924 Industiral Control Transformer $50.00 Time Remaining: 5d 15h 45m Buy It Now for only: $50.00 |
 NIB General Electric transformer 2KVA 9T51B0012 $249.99 Time Remaining: 15d 10h 39m Buy It Now for only: $249.99 |
 GENERAL ELECTRIC TRANSFORMER 9T51B123 NEW $14.06 Time Remaining: 3d 11h 26m Buy It Now for only: $14.06 |
 NIB Acme Electric Transformer Standard Power SPS 1202428 SPS1202428 SPS12O2428 $75.00 Time Remaining: 24d 17h 41m Buy It Now for only: $75.00 |
 SOLA ELECTRIC 63 23 112 4 USED CONSTANT VOLTAGE TRANSFORMER 63231124 $175.00 Time Remaining: 2d 8h 43m Buy It Now for only: $175.00 |
 Basier Electric Intermittent Duty Power Transformer BE 23222 001 $33.99 Time Remaining: 10d 14h 17m Buy It Now for only: $33.99 |
 GENERAL ELECTRIC PLCT3G01 CURRENT TRANSFORMER NIB $50.00 Time Remaining: 28d 2h 5m Buy It Now for only: $50.00 |
 BASLER ELECTRIC BE24761001 TRANSFORMER NEW $50.00 Time Remaining: 24d 10h 41m Buy It Now for only: $50.00 |
 NEW SOLA ELECTRIC E050 TRANSFORMER $30.00 Time Remaining: 15d 9h 19m Buy It Now for only: $30.00 |
 GENERAL ELECTRIC TRANSFORMER 9T51B0007 EXCELLENT CONDITION ORIGINAL BOX $34.00 Time Remaining: 17d 15h 32m Buy It Now for only: $34.00 |
 SUPERIOR ELECTRIC POWER STAT VARIABLE TRANSFORMER $45.00 Time Remaining: 10d 15h 4m Buy It Now for only: $45.00 |
 ALLIS CHALMER AIR COOLED 480 240 208 120 3 1 PHASE ELECTRICAL TRANSFORMER $250.00 Time Remaining: 23d 8h 51m Buy It Now for only: $250.00 |
 NEW FANUC GENERAL ELECTRIC N0234CS WIDEBAND TRANSFORMER T797 27255 47254 $19.15 Time Remaining: 21d 23h 26m Buy It Now for only: $19.15 |
 Used General Electric Transformer 9T51B11 15KVA USED $97.49 Time Remaining: 5d 15h 21m Buy It Now for only: $97.49 |
 GENERAL ELECTRIC 9T56Y2879 USED TRANSFORMER 9T56Y2879 $50.00 Time Remaining: 17d 9h 5m Buy It Now for only: $50.00 |
 GENERAL ELECTRIC 9T51B82 TRANSFORMER 60HZ 1PH XLNT $25.00 Time Remaining: 8d 6h 55m Buy It Now for only: $25.00 |
 GENERAL ELECTRIC CR104PXG22R TRANSFORMER UNIT 120V NIB $29.99 Time Remaining: 14d 13h 32m Buy It Now for only: $29.99 |
 GENERAL ELECTRIC 9T51B0172 Transformer 380 400 416 120 240 2 kva NEW IN THE BOX $179.99 Time Remaining: 8d 17h 31m Buy It Now for only: $179.99 |
 GENERAL ELECTRIC RT 2 REMOTE CONTROL TRANSFORMER NEW IN BOX $45.00 Time Remaining: 1d 11h 14m Buy It Now for only: $45.00 |
 General Electric 300 Line Control Size 1 With control Transformer Enclosure $175.00 Time Remaining: 2d 13h 19m Buy It Now for only: $175.00 |
 NEW ACME ELECTRIC T 2A 53308 1S TRANSFORMER 30 KVA $289.00 Time Remaining: 20d 8h 51m Buy It Now for only: $289.00 |
 GENERAL ELECTRIC GE TYPE IP 9T58B503G30 10KVA 1PH TRANSFORMER 480V 120V $25.00 Time Remaining: 6h 53m Buy It Now for only: $25.00 |
 GENERAL ELECTRIC 531X199SPTADG1 VA 4 COMMUTATION PULSE TRANSFORMER MODULE 56055 $374.99 Time Remaining: 24d 8h 54m Buy It Now for only: $374.99 |
 General Electric Transformer kit CR308XT104A 220 480 GE $50.00 Time Remaining: 7d 21h Buy It Now for only: $50.00 |
 GENERAL ELECTRIC CURRENT TRANSFORMER 631X32 $55.00 Time Remaining: 24d 10h 27m Buy It Now for only: $55.00 |
 Acme Electric Corp Power Transformer T 53006 WARRANTY $33.00 Time Remaining: 20d 13h 37m Buy It Now for only: $33.00 |
 GE GENERAL ELECTRIC CONTROL TRANSFORMER MODEL 9T58B3717 500 KVA SINGLE PHASE $79.99 Time Remaining: 19h 48m Buy It Now for only: $79.99 |
 ACME ELECTRIC T 2 53011 TRANSFORMER XLNT $165.00 Time Remaining: 3d 14h Buy It Now for only: $165.00 |
 GENERAL ELECTRIC CR104PXG22 TRANSFORMER LAMP SOCKET LOT OF THREE NIB $39.99 Time Remaining: 7d 14h 46m Buy It Now for only: $39.99 |
 HEVI DUTY ELECTRIC E1100 11KVA TRANSFORMER NNB $135.00 Time Remaining: 25d 15h 6m Buy It Now for only: $135.00 |
 NEW SOLA ELECTRIC E380 TRANSFORMER $50.00 Time Remaining: 15d 9h 24m Buy It Now for only: $50.00 |
 Takagi Electric Co TT 1000 TT1000 Transformer 1 KVA Phase 1 $89.99 Time Remaining: 5d 8h 57m Buy It Now for only: $89.99 |
 HAMMOND ELECTRIC TRANSFORMER 115 230V HPFD 012 030 12VDC AT 3A USED $40.00 Time Remaining: 23d 12h 21m Buy It Now for only: $40.00 |
 GENERAL ELECTRIC 9T55Y53 USED TRANSFORMER 9T55Y53 $125.00 Time Remaining: 1d 8h 3m Buy It Now for only: $125.00 |
 ACME ELECTRIC TA 1 81214 TRANSFORMER 50 60HZ XLNT $45.00 Time Remaining: 19d 7h Buy It Now for only: $45.00 |
 Gomi Electric Current Transformer GC 5BS JISC 1731 $55.00 Time Remaining: 9d 9h 6m Buy It Now for only: $55.00 |
 SOLA ELECTRIC POWER SUPPLY TRANSFORMER Input 120VAC Output 12VDC 5VDC 83 12 3218 $80.75 Time Remaining: 16d 19h 29m Buy It Now for only: $80.75 |
 SOLA ELECTRIC 23 13 060 2 TRANSFORMER 60VA NNB $169.00 Time Remaining: 5d 12h 5m Buy It Now for only: $169.00 |
 GE GENERAL ELECTRIC TRANSFORMER 9T56Y1802 KVA 050 NEW $26.00 Time Remaining: 22d 14h 12m Buy It Now for only: $26.00 |
 Chuo Electric Transformer 150KVA $80.00 Time Remaining: 7d 14h 36m Buy It Now for only: $80.00 |
 ACME ELECTRIC TA 1 81216 TRANSFORMER 750VA NIB $64.00 Time Remaining: 17d 15h 9m Buy It Now for only: $64.00 |
 NEW SOLA ELECTRIC E550 TRANSFORMER $80.00 Time Remaining: 15d 9h 21m Buy It Now for only: $80.00 |
 ACME ELECTRIC TA 1 81216 TRANSFORMER VA750 NNB $59.00 Time Remaining: 2d 14h 56m Buy It Now for only: $59.00 |
 Electrical Step Down Control Transformer $170.00 Time Remaining: 1d 8h 37m Buy It Now for only: $170.00 |
 NIB General Electric dry type transformer 9T51Y104 100KVA $49.99 Time Remaining: 22d 12h 50m Buy It Now for only: $49.99 |
 GENERAL ELECTRIC TYPE JAI 0 CURRENT TRANSFORMER $40.00 Time Remaining: 14d 15h 1m Buy It Now for only: $40.00 |
 ACME ELECTRIC TA 1 81214 INDUSTRIAL CONTROL TRANSFORMER NIB $64.00 Time Remaining: 5d 14h 23m Buy It Now for only: $64.00 |
 General Electric QSL W Line Conditioner Specialty Transformer NEW $299.99 Time Remaining: 19d 19h 58m Buy It Now for only: $299.99 |
 New Siemens KTH050 Electrical Transformer Kit $132.97 Time Remaining: 15d 23h 19m Buy It Now for only: $132.97 |
 ACME ELECTRIC TA 2 54523 750 VA TRANSFORMER NNB $149.00 Time Remaining: 1d 14h 6m Buy It Now for only: $149.00 |
 DAYKIN ELECTRIC GPFS 15 O TRANSFORMER ASSEMBLY 3000VA 1PH NNB $699.00 Time Remaining: 19d 15h 53m Buy It Now for only: $699.00 |
 NIB RELIANCE ELECTRIC 64670 23R TRANSFORMER ASSY $500.00 Time Remaining: 10d 18h 10m Buy It Now for only: $500.00 |
 SOLA ELECTRIC Mini Micro Computer Regulator Transformer 63 23 210 8 Tested $895.00 Time Remaining: 23d 20h 3m Buy It Now for only: $895.00 |
 NEW Reliance Electric Transformer 69955 W 69955W TE 180 $59.50 Time Remaining: 11d 10h 55m Buy It Now for only: $59.50 |
 General Electric 9T58K007 TRANSFORMER 25KVA 240 480V PRI 110 115 120V SEC $115.50 Time Remaining: 5d 9h 27m Buy It Now for only: $115.50 |
 ACME ELECTRIC T 2 53012 S TRANSFORMER XLNT $279.00 Time Remaining: 9h 7m Buy It Now for only: $279.00 |
 SOLA ELECTRIC 20 21 112 2 USED CONSTANT VOLTAGE TRANSFORMER 20211122 $160.00 Time Remaining: 2d 8h 47m Buy It Now for only: $160.00 |
 SUPERIOR ELECTRIC LW136BT POWERSTAT TRANSFORMER XLNT $149.00 Time Remaining: 1d 14h 36m Buy It Now for only: $149.00 |
 Chuo Electric Transformer BKO NC 6092 H13 BK0 NC D49MA002720 NF100 SP $5,000.00 Time Remaining: 23d 18h 5m Buy It Now for only: $5,000.00 |
 NEW SUPERIOR ELECTRIC TRANSFORMER 120V 50 60HZ 10C $120.99 Time Remaining: 16d 7h 2m Buy It Now for only: $120.99 |
 GENERAL ELECTRIC 9T58K0042 CORE COIL TRANSFORMER 050 $29.99 Time Remaining: 24d 9h 6m Buy It Now for only: $29.99 |
 SUPERIOR ELECTRIC 10C NEW TRANSFORMER 10C $125.00 Time Remaining: 9d 14h 59m Buy It Now for only: $125.00 |
 GE GENERAL ELECTRIC 9T51B0104 BUCK BOOST TRANSFORMER NEW SINGLE PH 0100KVA NEW $49.99 Time Remaining: 15d 8h 51m Buy It Now for only: $49.99 |
 GENERAL ELECTRIC CONTROL TRANSFORMER MODEL 9T58B3396 $179.00 Time Remaining: 7d 19h 48m Buy It Now for only: $179.00 |
 HEVI DUTY ELECTRIC W250 TRANSFORMER NIB $55.00 Time Remaining: 6d 18h 59m Buy It Now for only: $55.00 |
 GENERAL ELECTRIC 9T58K3301 TRANSFORMER NEW 9T58K3301 $509.95 Time Remaining: 5d 9h 27m Buy It Now for only: $509.95 |
 Reliance Electric Transformer 250513 $49.00 Time Remaining: 7d 18h 11m Buy It Now for only: $49.00 |
 RV 1220 GENERAL ELECTRIC TRANSFORMER $250.00 Time Remaining: 18d 10h 28m Buy It Now for only: $250.00 |
 GENERAL ELECTRIC 531X184IPTADG1 VA 4 PULSE TRANSFORMER INVERTER MODULE 56054 $349.99 Time Remaining: 24d 9h 33m Buy It Now for only: $349.99 |
 GENERAL ELECTRIC CR104PXG22 TRANSFORMER NEW $29.99 Time Remaining: 19d 14h 32m Buy It Now for only: $29.99 |
Electric Transformer
Electrical Transformers: Compliance And Safety
All electrical wiring and equipment has to be in accordance with NFPA 70. With electricity being hazardous, employees working with transformers are also subject to protection in accordance with 70E, unless it is an existing installation, which may be permitted to continue in service, subject to approval by the authority having jurisdiction over it.
Below are some of the key provisions relative to transformers mentioned in NFPA 70:
Individual dry-type transformers of more than 112½ kVA rating should be installed in a transformer room of fire-resistant construction having a minimum fire rating of 1 hour. Transformers not over 112½ kVA have no specific installation requirements for the room in which they are located.
Dry-type transformers rated over 35,000 volts should be installed in a vault with minimum fire resistance of 3 hours. Each doorway leading into a vault from the building interior should have a tight fitting door that has a minimum fire rating of 3 hours. Exception: Where transformers are protected with automatic sprinkler, water spray, carbon dioxide, or halon, construction of 1-hour rating shall be permitted.
About NFPA 70E
The NFPA 70E standard addresses the electrical safety requirements for all employees who install, maintain and repair electrical systems. It recognizes the hazards associated with the use of electrical energy and includes guidelines to take precautions against injury or death.
Compliance to NFPA 70E requires that all personnel working on electrical equipment operating at >50V should wear arc-flash protective garments to prevent injury. Arc-flash is an electric current that passes through the air when the insulation between electrified conductors can no longer withstand an applied voltage. A flash can last less than a second and its results can be severe and even lead to fatalities.
NFPA 70E Compliance Checklist
Implementation of NFPA 70E regulations is a major challenge. The arc flash analysis requires training and tools to implement the program.
Below is a checklist to establish NEPA 70E Compliance
Short-Term Action
- Electricians, maintenance mechanics and facilities repair workers are not to work on hot/live equipment wearing all-cotton clothing
- Electricians, maintenance mechanics and facilities repair workers should work as much as possible on de-energized equipment.
- Employees are to use interim hazard warning labels on electrical equipment.
Long-Term Action
- Electrical workers are to be trained in Arc-flash Hazard Awareness.
- Existing Logout/Tagout (LOTO) procedures are to be periodically reviewed to make certain they include all control panels.
- The LOTO training of previous employees to be assessed to determine if they need to be retrained.
- Periodic tool audits to be conducted to ensure employees have the required tools for their safety and replacement of missing tools.
- Reviewing those employees have clothing appropriate for electrical work.
- Arc-flash hazard analysis to be conducted to determine flash protection boundary on switchboards, panel boards, industrial control panels, motor control centers, other similar equipment.
So if you are planning to buy a transformer, you might want to ensure your transformer is NFPA 70 and 70E compliant, and pay some special attention to transformer security and safety of employees working with them.
Pacific Crest Transformers, with its years of experience on safety, advises those buying transformers from them on how to comply by the required legislation, so that risk of any kind is minimized.
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About the Author
Source: Pacific Crest Transformers
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why does my electric transformer burns out?
its a transformer which lowers from 240v to 12v
Transformers most likely burn out due to the heat wear effect on the coil's insulation. When the insulation is locally burn, the coil short-circuits and the transformer is gone.
One particular reason explaining why this is happening frequently, may be that the power rating of your transformer is smaller than the power demand you are drawing from it. This will cause your transformer to overheat and live shorter. The solution: increase transformer power or reduce power draw.
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