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Zhengzhou Great Electric Co.,Ltd.
Home ProductsProtection Relay Test Equipment

0.5 class in-built PC Four Phase Three Phase Protection Relay Test Equipment LCD Display

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0.5 class in-built PC Four Phase Three Phase Protection Relay Test Equipment LCD Display

0.5 class in-built PC Four Phase Three Phase Protection Relay Test Equipment LCD Display
0.5 class in-built PC Four Phase Three Phase Protection Relay Test Equipment LCD Display 0.5 class in-built PC Four Phase Three Phase Protection Relay Test Equipment LCD Display

Large Image :  0.5 class in-built PC Four Phase Three Phase Protection Relay Test Equipment LCD Display

Product Details:
Place of Origin: China
Brand Name: HNMC
Model Number: MCRT43
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: Negotiable
Packaging Details: wooden package
Delivery Time: 4-8weeks
Payment Terms: L/C, T/T, Western Union, MoneyGram
Supply Ability: 50 sets per month
Detailed Product Description
Voltage Range: 4*(0-120V) Current Range: 3*(0-40A)
Output Accuracy: 0.5% Display: LCD
Voltage: 4 Channels Current: 3 Channels

4 Phase voltage & 3 Phase current output Protection Relay Test Equipment With Fault Playback

 

Main Test of 4 Phase voltage & 3 Phase current output,

1.AC TEST 

2.DC TEST 

3.Harmonic Superposition Test

4.High-Low Frequency Test

5.Power Direction & Impedance Test

6.Synchronization Test

7.Full Group Test

8.Distance & Zero Sequence Protection

9.Characteristic of Impedance

10.Differential Protection

11.Differential Harmonic

12.Comprehensive Test of Line Protection of 6-35 KV Microcomputer

13.Fault Review

 

Technical Index of 4 Phase voltage & 3 Phase current output,

 

AC current source
Output accuracy 0.5%
Output range 3*(0-40A); 0-120A (three phases in parallel)
  Phase current which can get long-time working 10A
  Maximum output power of phase current: 420VA
  Maximum output power of three phase current in parallel: 900VA
  Permissible working time (when three phase current in parallel to get maximum output): 10s
Frequency (basic wave) range 20-1000Hz
Harmonics times 1-20 times
DC current source
Output accuracy 0.5%
Current output 0-+/-10A per phase; 0-+/-30A (three phase in parallel)
Maximum load voltage output 20V
Output accuracy 0.5%
Phase voltage output 4*(0-120V)
Line voltage output 0-240V
Phase voltage/line voltage output power 80VA/100VA
Frequency (basic wave) range 20-1000H
Harmonics 1-20 times
DC voltage source
Output accuracy 0.5%
Phase voltage output amplitude 0-+/-160V
Line voltage output amplitude 0-+/-320V
Phase voltage/line voltage output power 70VA/140VA
Dimension 400*300*180mm
Weight approx 20KG
Power supply AC 220V±10%,50/60Hz
Ambient temperature -10℃ ~ +50℃

 

 

Switch signal and time measurement

 

Switch signal input

7circuits

Idle contact: 1~20mA,24V

Potential contact access: “0”:0~ +6V; “1”:+11 V~ +250V

Switch signal output 2 pairs DC:220V/0.2A;AC:220V/0.5A
Time measure

Test range: 0.1ms ~ 9999s , accuracy 0.1mS

Measurement range: 0.1ms ~ 9999s

Measurement accuracy:0.1mS

0.5 class in-built PC Four Phase Three Phase Protection Relay Test Equipment LCD Display 0

 

0.5 class in-built PC Four Phase Three Phase Protection Relay Test Equipment LCD Display 1

 

Digital Signal Processor Microcomputer

High-speed digital controlling processor is adopted as the output core of the tester. 32 bit double precision arithmetic is employed in the software, through which arbitrary high-accuracy waveforms of each phase can be produced. Since integrative structure is adopted,the structure of the tester is layed compactly.The distance of data transmission is short with tight structure, which overcome the problem of fewer points of waveform output due to long data communicational line and narrow frequency band when using the test controller controlled directly by PC.

Voltage and Current Amplifier

For phase current and voltage, we persist in adopting high performance linear amplifier output mode in order to make the current and voltage source to directly output all kinds of waveforms from the DC waveform to the waveforms including all kinds of frequency components, such as square wave, combined waveform overlapped by each order harmonic, fault transient waveform, etc. In addition, the output waveform is clear and smooth without high-frequency radiated interference with neighboring equipments. It can simulate well all kinds of current and voltage characteristics under the circumstance of short circuit fault.

For power amplifier circuit, we adopt import power parts with high-power and hi-fi module style as power output, combining with heat dissipation structure layed elaborately and reasonably, it has enough large power redundancy and thermal capacity. The power amplifier circuit has overheat, overflow, overvoltage and short circuit protections. When overflow occurs in the current circuit and overload or short circuit occurs in the voltage circuit, it will limit the output power automatically, switch off the whole power amplifier circuit and give alarm signal.In order to prevent the overheat of the power amplifier for long time operating under large current, a software time terminating system under large current is set in this tester. It can work for a long period when outputting is 10A or below. When the current is over 10A, the tester will start up the software time termination order. When time is up, the software will forbid power output automatically and give alarm signal. The higher output current is, the shorter the limiting time will be.

 

Contact Details
Zhengzhou Great Electric Co.,Ltd.

Contact Person: Mr. Tony Han

Tel: 86-15237157117

Fax: 86-371-55692730

Send your inquiry directly to us (0 / 3000)