Tianjin Grewin Technology Co.,Ltd

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- Power Monitoring Device
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  - Cable Fault Testing system
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  - Power Meter
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- VLF Hipot Tester
- Current Transformer
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  - Clamp Current Transformer
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  - Current Hall Sensor
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  - Split Core Transformer
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  - Minature Voltage Transformer
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  - Minature Current Transformer
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  - Instrument Current Transformer
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  - Flexible Rogowski Coil
  - Toroidal Core Current Transformer
- High Frequency Transformer
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- Low Frequency Transformer
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  - Toroidal Transformer
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  - EI Laminated Transformer 50/60Hz
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- Chokes Inductor
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ABOUT GREWIN:

Tianjin Grewin was established in 1995 and specialized in the manufacture of monitoring systems ，cable tester，transformer,current transformers and chokes etc. in China.These products widely used in communications,power energy,industrial control,medical equipments etc. After more than 24 years' development, we totally have 16 producing lines for transformers and 5 producing lines for monitoring systems.Now we have abtained the CE, ISO9001, CB, SGS and IEC certificates and we have our own brand “GREWIN”. We have established long-term trade relationships with customers from Germany,Russia, Ukraine,USA,Canada,Australia,Brazil,India, Malaysia, Indonesia etc. including more than 100 countries. "Quality and Honesty First” is the business philosophy we always adhere to. We also stick to the management strategy of "product creation, management creation and service creation".Make Grewin known by the world in electrical industry.

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NEWS

2024-08-16
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GWOL-668N 6-35kV overhead line fault detection and location
6-35kV GWOL-668N overhead line fault detection and location It integrates five functions: fault diagnosis, AC location, DC location, AC voltage withstand test, and DC voltage withstand test.
2024-02-25
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TDRL-902 test feedback about old customer from Italy
This customer is mainly use our TDR-902 Cable fault locators and feedback us as following three points: 1. Performance is good of TDR. 2.Tested on 89 cables. 3.Accuracy is good.
2024-02-06
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The client's visit meeting and on-site training
We great team has carefully prepared to welcome the client's visit and on-site training.We both two party has reached an agreement after two days of negotiation about cable fault locators and underground pipe locators.
2023-12-13
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Holding the 2023 Employee Birthday Event
In order to enrich our corporate values and express gratitude to our employees for their contributions to the company, we are holding the 2023 Employee Birthday Event here today.