GB/T 20840.7-2007Instrument transformers -- Part 7: Electronic voltage transformers (English PDF)
互感器 第7部分:电子式电压互感器
This is a limited preview
Buy now to download the full PDF (36 pages)
Need quotation for your management?
Get a formal quotation for GB/T 20840.7-2007 in 30 minutes.
Issued by
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Level / Type
National · Recommended
Issue date
January 16, 2007
Implementation date
August 1, 2007
Scope
GB/T 20840.7-2007 is the English-translated version of 互感器 第7部分:电子式电压互感器.
GB/T 20840.7-2007 — This standard applies to newly manufactured analog output of electronic voltage transformers, frequency of 15Hz to 100Hz for electrical measuring instruments and electrical protection devices.
Found what you need?
Document preview — GB/T 20840.7-2007
National Standard of the People's Republic of China
- ICS
- 29.180
- Classification
- K 41
Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Contents
- What this standard covers1
- Document data2
- Standards quoted by this document3
What this standard covers
This standard applies to newly manufactured analog output of electronic voltage transformers, frequency of 15Hz to 100Hz for electrical measuring instruments and electrical protection devices.
Document data
International classification (ICS): 29.180.
Chinese classification (CCS): K41.
Estimated length of the Chinese original: 54,548 words.
Adopted international standard: IEC 60044-7-1999, MOD.
Standards quoted by this document
GB 156-2003; GB 311.1-1997; GB 1207-2006; GB/T 2900.15-1997; GB/T 2900.50-1998; GB/T 2900.57-2002; GB/T 4365-2003; GB/T 4703-2001; GB/T 4796; GB/T 4797; GB/T 4798; GB 4824; GB/T 5465.2; GB/T 7654-2003; GB/T 11021-1989; GB/T 14047-1993; GB/T 14598.3-1993
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 36 pages — is available in the English PDF.
Referenced standards
Cited by
- GB/T 19862-2025General requirements for monitoring equipment of power quality
- GB/T 45906.5-2025Substation secondary system - Part 5: Protection and control system with their equipment's requirements
- NB/T 42165-2024Specification for multi-terminal line protection
- GB/T 40091-2021Requirements for safety measures of relaying protection and security automatic equipment in smart substation
- DL/T 2005-2019Technical specification of DC voltage transformer
- GB/T 26217-2019DC voltage measuring device for HVDC transmission system
How to Download GB/T 20840.7-2007
- 1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
- 2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
- 3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
- 4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.
Related Standards
GB/T 20840.1-2026 — Instrument transformers - Part 1: General technical requirements
GB/T 20840.10-2025 — Instrument transformers - Part 10: Additional requirements for low-power passive current transformers
GB/T 20840.102-2020 — Instrument transformers - Part 102: Ferroresonance oscillations in substations with inductive voltage transformers
Secure payment via Stripe
Payments accepted
GB/T 20840.7-2007
$680.00