Product Introduction
ETCR1220 Transformer Region Identify Meter, also known as transformer region topology identification meter, transformer region dual-method identification meter, which is used for online identify the attribution relationship between transformer and user and to determine the network topology relationship. The instrument adopt with power frequency signal carrier modulation technology for transformer identification, accurate transformer identification can be achieved under the influence of adjacent transformer sharing the same voltage, ground, cable trench, and communication base station. The identification meter is consisted of handheld host and slave, host and slave are identical, which can be used on the secondary side or measured point of the transformer region, bidirectional identification of the transformer region.
ETCR1220 Transformer Region Identify Meter adopts with a combination of high speed A/D AC sampling and high-speed DSP digital processing technology. Developed using power frequency carrier modulation technology, which provides an efficient and essential tool for power grid load survey, transformer region contracting, and electricity inspection and product scheduling. This product fully meets the need of transformer region recognition, user recognition, phase and phase sequence recognition. Compared with previous product, it has advantages such as full network coverage, fast recognition speed, accuracy, simple operation, and convenient portability.
1.Bidirectional recognition function, the host and slave can be interchanged.
2.Install up to 16 hosts at the same time to identify multiple transformer region recognition.
3.Branch identification, clarifying the topological relationship of the transformer region, realizing branch power outages, local line loss verification, etc., is an important part of realizing the refined management of the transformer region, and supports up to 24 branch measurements.
4.Transformer region mutual inspection, mutual inspection of transformer region is to detect whether exist the exist of crosstalk between adjacent transformers. some transformers may be connected to each other due to work negligence, resulting in the connection of lines between two transformers, and therefore it is necessary to conduct mutual testing between various transformers to ensure their independence.
5.Harmonic analysis can view 34 times harmonic value.
6.Record query, display the record of the attribution relationship of the transformer region.
Technical Parameter
| Rated Voltage |
Three phase four wire: 220V (phase voltage) |
| Rated Frequency |
50Hz |
| Normal Voltage Range |
0.8Un~1.2Un |
| Static Power Consumption Of The Meter |
≤ 3.5W |
| Test Distance |
5km |
| Identification Cycle |
6 seconds |
| One Recognition Success Rate |
>99% |
| Electrical Parameter Accuracy |
≤1% |
| Phase Angle Test Range |
-179.9°~180.0° |
| Harmonic Test |
Yes, 2~34 times |
| Total Harmonic Distortion |
Yes, 2~34 times, each phase |
| Memory |
9999 groups |
| Host Test Line |
Double lock 4 core test line (yellow, green, red, black) |
| Slave Test Line |
Double lock 4 core test line (yellow, black), 220V test line (red, black) |
| Large Alligator Clip |
4 PCS |
| Large Alligator Clip |
4 PCS (with a hook) |
| Small Alligator Clip |
4 PCS |
| Current Clamp Group |
1 group (3 PCS) |
| Meter Size |
225mm×118mm×48mm |
| Weight |
Instrument: about 730g×2 PCS; Total weight: about 1.7kg (include accessory) |
| Insulation |
Between the instrument line and protective housing≥100MΩ |
| Structure |
Double insulation, with insulated anti-vibration sheath |
| Suitable Safety Standard |
GB/T 2423.10 GB/T 2423.2 GB/T 2423.1 GB/T 17626.11 GB/T 17626.5 GB/T 17626.8 GB311.3-83，IEC61010-031, IEC61010-1 CAT Ⅲ 600V |
| Working Temperature & Humidity |
-30℃~70℃; below 80%RH |
Model comparison
| Product Picture |
Product Model Name |
Phase Line Identify |
Transformer Region Identify |
Branch Identify |
Harmonic Analysis |
Power Supply |
 |
ETCR1100 Transformer Region Phase Line Identify Meter |
Yes |
-- |
-- |
-- |
Lithium Battery |
 |
ETCR1220 Transformer Region Identify Meter |
Yes |
Yes |
Yes |
Yes |
External Power Supply |
Data download
CN
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