Dynamic resistance measurement kit - ZDRM-2
Hydro-Québec license

The Dynamic Resistance Measurement KIT ZDRM-2 implements a new method developed by Hydro-Québec research center (IREQ) and commercialized under licensed by Zensol.

Fig. 1: Results obtained with Old Method

Fig. 2: Results obtained with New Method

The KIT has been designed to determine the main- and arcing-contact resistance curve (Fig. 1). The Zensol KIT allows to use a new method to obtain a "clean" resistance curve (Fig. 2), thus providing a reliable diagnostic tool for assessing the status of the breaker contacts.

Main advantages

- Easy and straightforward interpretation of the resistance curve

- Easy detection of faulty contacts (excessive wear, misalignment, etc.)

- Accurate values of the main- and arcing contact resistance

- Accurate values of the main- and arcing contact wipes

- Simple mathematical algorithm for assessing the status of the breaker contacts

- New test method validated on high-voltage air-blast and SF6 gas circuit breakers

- Instantaneous display of the results via the CBA Win© software
- Direct connection to the CBA-32P circuit breaker analyzers
Technical features Related Documents
- Ranges: From 10 micro-ohms to 3 milliohms

 

  
- Accuracy: Values of the main and arcing contact resistance   - Guide for CBA Accessories
- Current: 100 A

 

 - Hydro-Québec award
- Voltage: 10 VDC

 

  
- Supply voltage: 120 VAC/60Hz or 220 VAC/50Hz

 

  
- Environment: Any voltage environments (up to 800 kV)

 
Accessories supplied with the kit
Options
Hardware:
- Current transducer - Z-CURRENT-MOD
- Voltage transducer - Z-VOLT-MOD
   Current source
Displacement transducer kit
Displacement measurement kit
Valise

Software:

-CBA WIN software dynamic resistance measurement module (Hydro-Québec license)
   Power supply cable
Zensol Clients Sharing knowledge
 
- ZDRM-2 Software

 
- A New Measurement Method of the Dynamic Contact Resistance of HV Circuit Breakers. An article presented to CIGRE, IEEE, NETA, etc.

- Manuals

Need a Password?

 - A Complete Strategy for Dynamic Contact Resistance Measurements on on HV Circuit Breakers This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination.

 

 
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ZENSOL AUTOMATION INC.
2281 Rue Guenette
Saint Laurent, QC H4R 2E9 Canada
Tel: (514) 333-3488 - Fax: (514) 333-3499
e-mail: zensol@zensol.com