# Denton Ionwave #9158

City of Denton solicitation for substation instrument transformers

**Posted:** October 02, 2026
**Respond By:** October 21, 2026
**Identifier:** 9158
**NAICS:** 335311

The City of Denton is seeking proposals for estimated five-year requirements of electric utility instrument transformers for its substations.
- **Government buyer:** City of Denton, Denton Purchasing.
- **Products and estimated quantities:**
  - Potential transformers (PTs): 69 kV (3), 138 kV (80), 345 kV (36), 13.2 kV dry type (3), and 24.9 kV dry type (3).
  - Extended-range current transformers (CTs): 69 kV (3) and 138 kV (6).
  - Capacitive-coupled voltage transformers (CCVTs): 345 kV (36).
  - No part numbers or transformer OEMs are specified; respondents must identify the proposed manufacturer and catalog number.
- **Technical and delivery requirements:** Equipment must be fully assembled, factory tested, and meet applicable ANSI/IEEE standards. Specifications include voltage-class-specific accuracy, ratios, burdens, and thermal or fault ratings. Provide certified test reports, drawings, and product documentation. Delivery is FOB destination to Denton-area substations; units must arrive ready for installation.
- **Warranty and supplier qualifications:** Provide at least a 12-month warranty beginning when a unit is first energized; replacement units must arrive in Denton within 60 days. Respondents must be manufacturer-approved distributors authorized to sell the equipment and preserve the manufacturer’s warranty.
- **Named companies:** **Burndy** and **Anderson** are cited only as examples of acceptable 4/0 SDBC grounding-lug designs, not as transformer manufacturers. No transformer OEM is designated.
- **Services:** Design, manufacturing quality control, factory testing, documentation, delivery, and warranty/replacement support are required.
- **Term:** Initial one-year term with renewal options described inconsistently as “two (4) one-year periods,” plus a possible extension of up to six months. Quantities are estimates based on five years.

### Description

The City of Denton is seeking proposals to supply completely assembled and tested electric utility instrument transformers for use on its 13.2kV, 24.9kV, 69kV, 138kV, and 345kV systems. Equipment is to be delivered FOB to the Spencer Utility Site in Denton or other designated Denton-area substations, and pricing must include delivery and related costs. The specifications address technical design, testing, quality control, warranty, and delivery requirements. Responses must be submitted as a sealed submission through IONWAVE or by hard copy; email submissions are not accepted.

[View original listing](https://dentontx.ionwave.net/PublicDetail.aspx?bidID=2392&SourceType=1)