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New & unused

Kolektor Etra 66/88/110 MVA
138 kV / 34.5 kV gsu transformer for sale

138 kV high side / 34.5 kV low side

Equipment ID: 13834-RC

Equipment photographs & nameplate documents

Serial 84097 matches the listing; manufacture date and final loss/impedance fields remain blank. Select an image to view it full size.

KOLECTOR-ETRA transformer 13834-RC — supplied nameplate engineering drawing
Nameplate engineering drawing — listing 13834-RC. Select to view the full-resolution original.

Equipment specifications

Manufacturer
Kolektor Etra
Equipment ID
13834-RC
Application
GSU transformer
Power rating
66/88/110 MVA
High-side voltage
138 kV
Low-side voltage
34.5 kV
Catalog condition
New & unused
Listed quantity
5
Manufacture year
Not stated on supplied nameplate
Tap changer
On-load tap changer — MR VM III 650Y–72.5/B 18 35 3W
Nameplate ratings
66 / 88 / 110 MVA
High side
138 kV
Low side
34.5 kV
Phase / frequency
3-phase / 60 Hz
Cooling
ONAN / ONAF1 / ONAF2
Vector group
YNyn0+d11
HV regulation
±16 × 0.625% with OLTC
Tertiary
13.8 kV; 22 / 29.333 / 36.666 MVA
Manufacturer shown on nameplate
Kolektor Etra
Transformer type
RT 110000-138
Manufacturer serial number
84097
Buyer equipment number
1516-03-02
Purchase order shown
1516-03 GSU 02
Drawing reference
4497_tnp_1_v01; BZ 151
Cooling stages
ONAN / ONAF1 / ONAF2
HV / LV rating
66 / 88 / 110 MVA
Tertiary rating
22 / 29.333 / 36.666 MVA
Rated voltages
138 / 34.5 / 13.8 kV
Standards shown
IEC 60076-1; IEEE (no specific IEEE number shown)
HV winding insulation
BIL 650 kV / AC 275 kV
HV neutral winding insulation
BIL 200 kV / AC 50 kV
HV line bushing insulation
BIL 650 kV / AC 275 kV
HV neutral bushing insulation
BIL 250 kV / AC 95 kV
LV winding / neutral insulation
BIL 200 kV / AC 80 kV
LV line / neutral bushing insulation
BIL 250 kV / AC 95 kV
Tertiary winding insulation
AC 28 kV
Minimum / maximum design ambient
−40 / +40 °C
Guaranteed maximum oil / winding temperature rise
65 / 65 K
Vacuum capability
100 Pa / 0.0145 psi
Conductors HV / LV / tertiary
Copper / copper / copper
Core material
Cold-rolled silicon steel
Oil / standard
ERGON Hyvolt III / IEC 60296
Oil preservation
Conservator with rubber bag
Copper mass
13,950 kg / 30,754 lb
Core mass
32,250 kg / 71,099 lb
Oil mass
18,400 kg / 40,565 lb
Main-part oil volume
5,578 gal
Active part and cover mass
53,900 kg / 118,829 lb
Total mass
91,000 kg / 200,620 lb
Shipping mass with gas
66,300 kg / 146,166 lb
Country / city of manufacture
Ljubljana, Slovenia
Impedance / load-loss reference
66 MVA; values blank at positions 1, 17 and 33
Other blank fields
Manufacture date, OLTC serial, zero-sequence impedance, no-load loss, PEI and S PEI
PCB note
Less than 2 ppm at time of manufacture, per nameplate

Equipment overview

Kolektor Etra generator step-up transformer with 66/88/110 MVA cooling ratings and 138/34.5 kV main windings. Its documented design includes on-load voltage regulation, copper windings and a 13.8 kV tertiary.

Serial 84097 matches the listing; manufacture date and final loss/impedance fields remain blank.

HV tap schedule

PositionVoltage (V)ONAN (A)ONAF1 (A)ONAF2 (A)
1151800251.0334.7418.3
2150938252.5336.6420.8
3150075253.9338.5423.2
4149212255.4340.5425.7
5148350256.9342.5428.1
6147488258.4344.5430.6
7146625259.9346.5433.1
8145762261.4348.6435.7
9144900263.0350.6438.3
10144038264.5352.7440.9
11143175266.1354.9443.6
12142312267.8357.0446.3
13141450269.4359.2449.0
14140588271.0361.4451.7
15139725272.7363.6454.5
16138862274.4365.9457.3
17A / 17B / 17C138000276.1368.2460.2
18137138277.9370.5463.1
19136275279.6372.8466.0
20135412281.4375.2469.0
21134550283.2377.6472.0
22133688285.0380.0475.0
23132825286.9382.5478.1
24131962288.8385.0481.3
25131100290.7387.5484.4
26130238292.6390.1487.6
27129375294.5392.7490.8
28128512296.5395.3494.2
29127650298.5398.0497.5
30126788300.5400.7500.8
31125925302.6403.5504.3
32125062304.7406.3507.8
33124200306.8409.1511.3

LV current

Voltage (V)ONAN (A)ONAF1 (A)ONAF2 (A)
345001104.51472.71840.8

Serial-specific nameplate

The supplied nameplate identifies serial 84097. This catalog listing retains its previously listed quantity of five; this single nameplate does not verify the serial numbers, specifications or present availability of all five units. Request the individual documentation for each offered unit.

Document scope & verification

Specifications were transcribed from the supplied nameplate drawing. Confirm the final unit nameplate, factory test report, accessories and shipping configuration before purchase. Blank fields, asterisks and draft values have not been treated as final test results. Drawing dimensions describe the nameplate itself, not the transformer footprint.

Freight and delivery scope quoted on request.

Listing details

Kolektor Etra generator step-up transformer with 66/88/110 MVA cooling ratings and 138/34.5 kV main windings. Its documented design includes on-load voltage regulation, copper windings and a 13.8 kV tertiary.

Winding connections, secondary options, included accessories, and tap-changer details must be checked against the unit-specific nameplate and drawings. The description above preserves the listed configuration.

Plan the purchase and delivery

Review the transformer procurement checklist, the technical documentation guide, and delivery planning requirements.

Looking for a different unit? Browse new & unused inventory and pre-owned transformers, or ask about additional sourcing options.

Request the technical package

Ask our team for the records available for this equipment and confirmation of its current status.

  • Nameplate & winding diagram
  • General arrangement drawings
  • Equipment photographs
  • Factory or field test reports
  • Condition & service history
  • Dimensions & shipping weights

Document availability varies by unit. Pricing, location, lead time, warranty, and delivery scope are provided with the quotation.

How do I confirm availability?

Email the equipment ID or call (248) 250-0407. Equipment is subject to prior sale. Current availability and allocation are confirmed in writing.

Can you coordinate transportation and installation?

Yes. We coordinate shipment preparation, oil services, heavy haul, rigging, placement, and qualified installation support as an agreed project scope. Explore full-service solutions.

What purchase and warranty options apply?

Terms depend on the equipment, condition, seller, and agreed scope. Review purchase options and request a unit-specific quotation.

Listing document

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