• Ge Transformer 9t51b0008
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Transformer nameplates contain several standard items of information and other optional information. Transformer nameplate must specify the following parameters:

Ge Transformer 9t51b0008

• Volt-Ampere (VA) or kilovolt-amperes (kVA) rating
• The voltage rating of both the primary and secondary circuits
• The impedance rating of the transformer (normally restricted to 25 kVA or larger)
• The required clearances for transformers with ventilated openings
• The amount and kind of insulating liquid where used.
• On dry-type transformers (no liquid coolant or insulation), the nameplate listing must also include the class temperature rating of the winding insulation.

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In the lower right section (Figure 8), you will find the power ratings, basic insulation level or BIL rating and Impedances. If you are paralleling or banking the transformer, the nameplate will list the transformer impedance, so you can ensure they are properly matched. PCB transformers PCB transformers (Fig. 2) may carry a PCB trade name on the manufacturer nameplate. The regulations require the assumption “that a transformer manufactured prior to July 2, 1979, that contains.fluid other than mineral oil and whose concentration is not established, is a PCB Transformer” and contains 500 ppm PCBs. SIGNALING TRANSFORMER-No. This is undoubtedly a later design and with the new Jefferson address. Capacity 50 Volt-Amps, Primary volts 115, cycles 50/60, Maximum current capacity of secondary winding 2 amps. Serial number stamped in the plate is 218126. The top cover can be removed to select the connections for the desired voltages.

Fig.1: Transformer Nameplate

Transformer kVA Rating

Star wars imperial vehicles. The nameplate always indicates the size of the transformer in terms of how much apparent power (rated kVA) it is designed to deliver to the load on a continuous basis. By its very nature, the transformer will have more than one rated voltage, depending on which side we are looking at and how many windings there are on that side.

For Example, the GE Dryer with SN: LR821547C was Manufactured in 2020, June. For Example, the GE Stackable washer and Dryer Model No.: GUD24ESSMWW with SN: RL059433C was Manufactured in August 2018 (F20-014). Mar 11, 2013 Pre 1965 GE did not use date codes. Post 1965 they had-xxxx letters and that combination told the manufacture plant and date. That is possibly PCB containing so watch out. Westinghouse is the first two numbers FYI.

Transformer Voltage Ratings

The following is a list of some conventions for specifying transformer voltage ratings:

U-W

The dash between the voltages U and W indicates they are on different sides of the transformer. For example 480—120 tells us the primary winding is rated 480 V and the secondary is rated 120 V.

U/W

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The slash indicates the two voltages are from the same winding and that both voltages are available;

1. g., 120/240 can indicate a 240 volt winding with a center tap.

U×W

The cross indicates a two-part winding that can be connected in series or parallel to give higher voltage or current, respectively. Only one voltage is available at a time; e.g., 120×40 indicates the transformer can operate at 120 V or 240 V, but not both simultaneously.

U Y/W

The Y indicates a three-phase winding connected in a wye configuration. The first letter (U) is the line voltage and the second letter (W) is the phase voltage (line to neutral). Clearly, U=√3 W. Examples include 208Y/ 120 and 480Y/277.

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Transformer Rated Frequency

The rated frequency will also be indicated on the nameplate (usually 60 Hz for the United States). Operating the transformer at a lower frequency will increase the core flux unless the voltage is reduced, this could cause magnetic saturation of the core and overheating due to increased hysteresis and eddy current losses.

Maximum Temperature Rise

The maximum allowable temperature rise for the transformer is also shown on the nameplate and is based on an assumed ambient temperature of 30^oC.

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Insulation Class

The insulation class indicates the type of transformer insulation.

Transformer Percentage Impedance

Percent impedance is a representation of the impedance of the windings referred to one side of the transformer. This number is the percentage of rated voltage that must be applied to the high side to cause rated current on the low side when the low side is shorted.

Other items that may be on the nameplate include the number of phases, a Wiring diagram, and tap-changing information.

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Transformer Nameplate Information

Following are the key information which are provided on the transformer nameplate from the manufacturer.

GE also makes appliances under names “Hotpoint” and “RCA”. Knowing the age of your appliance can help you find out the manufacturer warranty and decide if it’s worth the repair.

The date code is in the letters on your serial number.
Date codes – First letter is the month and the second letter is the year.

A = January  D = February  F = March  G = April  H = May  L = June  M = July  R = August  S = Sept.  T = Oct.  V = Nov.  Z = Dec.

G = 1980 & 1992Â Â H = 1981 & 1993Â Â L = 1982 & 1994Â Â M = 1983 & 1995Â Â R = 1984 & 1996Â Â S = 1985 & 1997Â Â T = 1986 & 1998Â Â V = 1987 & 1999Â Â Z = 1988 & 2000Â Â A = 1989 & 2001Â Â D = 1990 & 2002Â Â Â F= 2003Â Â G = 2004Â Â H =2005. The same letter code will be used and repeated in a twelve year cycle.

Example serial number: FR221102
FR221102 – F = month – March
FR221102 – R = year 1984 or 1996

FR was made in March 1996 or in March 1984