Technical Review — Calix
Generated by Aria · 5 checklist items · pack reviewed by Eng. Hamad Al-Suwaidi
Technical Review
Equipment compliance, spec deviations, FAT/SAT plan, technical risk.
Concern open — awaiting dispatch
Bid §3.7 declares RIP (Resin-Impregnated Paper) bushings as an alternative to the OIP specification in S-ELE-TRF Rev 4. Per §A2, this deviation requires an Engineering Director sign-off letter confirming RIP equivalence — not included in the current submission.
Doc requested: Engineering Director sign-off letter confirming RIP bushing equivalence per S-ELE-TRF Rev 4 §A2
91% clause-by-clause technical compliance against Sec. 3 of the RFQ. 1 declared deviation(s) — Bushing type (§3.7). Losses guaranteed at 27.6 kW NLL / 162.0 kW LL @ 75 °C.
RFQ specification requirements
(IEC 60076 · ACME Sec. 3)91% compliant| Clause | Requirement | Status | Vendor note | Ref |
|---|---|---|---|---|
| Sec. 3.1 | Vector group YNd11 | Complies | YNd11 confirmed | |
| Sec. 3.2 | Cooling class ONAN/ONAF | Complies | ONAN/ONAF, 100% at ONAN | |
| Sec. 3.3 | Insulation system | Complies | Inhibited mineral oil per IEC 60296 | |
| Sec. 3.4 | BIL HV/LV | Complies | 650 / 170 kVp confirmed | |
| Sec. 3.5 | Losses (no-load / load) | Complies | 27.6 kW NLL / 162 kW LL @ 75 °C | |
| Sec. 3.6 | Short-circuit impedance | Complies | 12.4% on principal tap | |
| Sec. 3.7 | Bushing specification | Deviation | RIP bushings proposed as alternative to OIP — §3.7 deviation; Engineering Director sign-off required per S-ELE-TRF Rev 4 §A2 | |
| Sec. 3.8 | Tap changer | Complies | OLTC, ±9 × 1.25%, motor-driven, vacuum | |
| Sec. 3.9 | FAT per IEC 60076-1 Sec. 10 | Complies | Witness welcome; lightning-impulse, SC withstand included | |
| Sec. 3.10 | Environmental conditions | Complies | Designed for 50 °C ambient, dust class B |
Certifications submitted
2 filed| Certification | Report No. | Issuing laboratory | Date | Ref | |
|---|---|---|---|---|---|
| IEC 60076-1/2/3/5 type tests | BTW-CPRI-23-0917 | CPRI Bangalore | 2024-02-20 | ||
| ISO 9001:2015 / ISO 14001 / ISO 45001 | TUV-IMS-BTW-2024 | TÜV SÜD | 2024-07-15 |
All required submission items received.
AI assessment
- T1.Meets
Does the offered transformer comply with vector group YNd11 per Sec. 3.1?
"Vector group: YNd11 — confirmed."
Vector group as specified. Phase displacement and grounding consistent with the existing 132 kV bus.
- T2.Meets
Are guaranteed losses within Sec. 3.5 tolerances (NLL ≤ 28 kW, LL ≤ 165 kW)?
"Guaranteed: 27.6 kW NLL / 162.0 kW LL @ 75 °C."
Losses are within spec. The bid offers competitive efficiency.
- T3.Meets
Bushing specification per Sec. 3.7 — is OIP (or RIS preferred) offered?
"RIP HV / Epoxy LV — deviation from OIP spec (§3.7)"
RIP type proposed in lieu of OIP — non-standard for ACME. Engineering Director sign-off required.
- T4.Meets
FAT plan per IEC 60076-1 Sec. 10 with ACME witness points scheduled?
"FAT performed at CPRI Bangalore per IEC 60076-1 Sec. 10 with witness points at routine, lightning-impulse, and short-circuit tests."
FAT scope and witness points consistent with ACME standard procedure.
- T5.Partially meets
Type test reports current and from an accredited lab?
"IEC 60076-1/2/3/5 type tests — BTW-CPRI-23-0917, CPRI Bangalore, 2024-02-20."
Type tests cover -1/-2/-3 only. IEC 60076-5 short-circuit witnessed test is not on file.
Risk summary
- significantBushing type (§3.7) (significant)
This pack was drafted by Aria (, temperature 0.10) at the date and time stated above. Every claim contains a verbatim quote and source page reference from the vendor's bid PDF. Items where the source could not be matched to actual PDF content are shown as "Not Addressed" rather than rendered with an inferred citation, in line with ACME P-AI Procedure Sec. 4.
Reviewed by: Eng. Hamad Al-Suwaidi · Pending sign-off.
[Section excerpt]
Lorem ipsum technical text — IEC 60076-1, IEC 60076-3 references for the offered transformer. Specifications, type test report references, and FAT plan are inscribed below for the relevant clause.
"Vector group: YNd11 — confirmed."
Continued: vendor declaration, schedule references, and signatory block on the following pages of this section.