Indicator
Your Professional Indicator Supplier
Wenzhou Shuowei Electric Co., Ltd. （SUVELL）is a high-tech enterprise specializing in the research, development, production and sales of transformer accessories, switch cabinet accessories, cable accessories, power fittings and transmission line accessories.
Our product portfolio includes pad-mounted transformers, pole-mounted transformers, oil-immersed load break switches, switchgear systems, and switchgear components.
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![Three Phase Centralized Charging Indicator]()
Three Phase Centralized Charging IndicatorThe three-phase centralized charging indicator is connected to the sensing terminal on the butt-fitting bushing or the integral bushing, which allows for the monitoring and management of...read more -
![Hot Line Voltage Indicator]()
Hot Line Voltage IndicatorThe charge indicator can be connected to a voltage (capacitance) test point of a 200A or 250A loadbreak elbow, T-type cable connector to help the operator determine whether the cable is live....read more -
![Multi-function Fault Indictor]()
Multi-function Fault IndictorTwo-in-one indicator, which is commonly referred to as a ground distribution circuit branch, often experiences a multitude of frequent failures. Identifying the fault line in such scenarios can be...read more -
![Panel Type Facult Indictor]()
Panel Type Facult IndictorThe short-circuit current sensor and the ground current sensor are respectively connected with the panel instrument main body through the optical fiber. After the failure, the sensor transmits the...read more -
![Cable Line Fault Indicator]()
Cable Line Fault IndicatorCable-line fault indicator, installed in the box-type change, ring counter, cable branch box, substation inlet and outlet branch and feeder branch, through the flashing light to determine the line...read more
Why Choose us
Quality Assurance
The company is equipped with comprehensive production facilities and a robust testing system to ensure that all products meet international standards and satisfy customer requirements.
Professional Solution
With extensive experience and personalized one-to-one service, we are capable of assisting you in selecting suitable products and providing professional answers to technical inquiries.
Reasonable Price
Supported by a dedicated procurement and cost-control team, we strive to minimize production costs and optimize profit margins in order to offer you competitively priced solutions.
Parameter
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Short Circuit Warning Current: |
200-2000A Selectable (accuracy:±10%); Delay 20-300ms; Customer could select before production; Default Settings: 800A/20ms |
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Earth Fault Warning Current: |
10-150A Selectable (accuracy:±10%); |
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Relative Humidity: |
≤95%RH |
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Working Ambient Temperature: |
-40℃-75℃ |
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Earth fault sensor mounted cable diameter: |
Outside diameter≤Φ120mm (other specifications shall be customized) |
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Short circuit sensor mounted cable diameter: |
Outside diameter≤Φ40mm (other specifications shall be customized) |
Improving Outage Management With Enhanced Fault Indicators
Short-circuit and earth fault indicators are such advanced fault indicators that improve changeover management as they assist in faster detection and resolution of the defaults. These devices allow real-time monitoring of the power distribution network systems and hence place operators in a position to pinpoint the places with the faults. With the help of control centers, these areas are communicated with, enabling quicker responses and assisting in the faster securing of the related trouble and the necessary repairs. No significant service interruptions are noted. This also leads to the enhancement of the reliability of the systems. By utilizing these technologies, utility companies can improve their operational effectiveness and deploy a more robust electric power network.
Including Directional Fault Detection For Enhanced Operating Reliability
Directional protection for fault detection enhances the reliability and stability of the network by establishing the direction of current in a power distribution network that creates a fault. With this capability, one can locate the fault and also the network segment that has the fault. By further distinguishing whether the fault current is flowing in the upstream or in the downstream direction, the utilities can better target the affected area, thus minimizing the extent of the outages. The risk better can be mitigated if this system integration is implemented where they reduce the level of diagnosis, reduce the cost of operation, and improve the system' s survival level by avoiding service of the unaffected areas. Effective directional fault detection is one of the more important aspects of stabilizing and modernizing systems for distributing electric power.
Installed at the first substation outlet of the long line of the cable: It can be judged that there is a fault in the station or outside the line.
Installed in the user's high-voltage line into the transformer: To determine whether the failure was caused by the client.
Installed in the overhead line and cable connection: To distinguish whether the fault occurred on the cable side.
Installed on the outlet side of high-voltage switchgear or ring main unit: It can judge if there is an outlet fault branch.
Working Principle of Fault Indicator
Typically fault indicators sense magnetic field caused by current flows through a conductor or cable. Some of them also use measurement of electric field caused by voltage in conductor.
During an electrical fault on a grounded system, additional current flows through a conductor, inducing a magnetic field, which is detected up by the fault indicator causing a state change on the mechanical target flag, LED, or remote indication device. Ground fault indicators for ungrounded systems sense the vector sum of the current and look for an imbalance indicating a fault on one or more of the three phases.
Systems with earthing through high resistance have low phase-to-ground fault currents so require high sensitivity of FI. In insulated neutral systems and systems with earthing through a Petersen Coil, ground faults cannot be located with classical FI's at all. Capacitive current appears in overall faulted system so directional fault location devices are required. Some modern network protection systems e.g. GFN have time to clear a fault as small as possible down to 60ms so fault indicators must not only be highly sensitive and directional but additionally very fast.
High-voltage fuses commonly drop down after operating, making it obvious where the fault is.
We offer various shipping methods, including sea freight, air freight, and express delivery, depending on the order size and destination.
Shipping costs will be calculated based on the destination and weight of the package.
Customers will receive a tracking number once the package has been shipped, so they can track the status of their delivery.
We strive to ship all orders within 2 business days of receiving the payment.
In case of any delays or issues with shipping, our customer service team will promptly communicate with the customer to resolve the problem.
With our careful packaging and efficient shipping methods, you can trust that your products will arrive in perfect condition and on time.
FAQ
We're professional indicator manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale bulk indicator in stock here from our factory. Contact us for quotation.
Three Phase Centralized Charging Indicator, indicator, Cable Line Fault Indicator