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Basic Three-phase Protection Relay Test Set
Model: HME-702
The HME-702 is a basic and economical protection relay test set with three-phase current outputs and four-phase voltage outputs. The HME-702 kit can apply to the testing not only on operating value and operating time of AC/DC relays, but also on complex voltage blocking directional over-current, zero sequence over-current, low-frequency load shedding and other protection functions of low voltage micro-processor based protection and whole group transmission of high voltage micro-processor based protection, and on starting value, quick-break value, harmonic blocking value and micro-processor based transformer differential protection.
The Basic Three-phase Protection Relay Test Set HME-702 has dual operation mode. It can be operated in local mode without PC, also can be controlled by software running on a PC after connecting to PC via communication cable.
Main Features
1) 3-phase current(3×40A) + 4-phase voltage(4×120V) output
2) Both local test and PC remote test available
3) Convenient operation in local mode
4) New high-fidelity linear power amplifier
5) Abundant binary inputs and binary outputs
6) Independent Aux. DC output
7) Perfect self-protection function
Technical Data
Current Generator
| Setting range | 3-phase AC(L-N) | 3x0…40A |
| 1-phase AC(LL-LN) | 1x0…120A | |
| DC(L-N) | 3x…±10A | |
| 3-phase AC(L-N) | 3x420VA at 40A | |
| Power | 1-phase AC(LL-LN) | 1x900VA at 120A |
| DC(L-N) | 3x120VA at 10A | |
| Accuracy | AC: ≤0.2% | |
| DC: ≤0.5% | ||
Voltage Generator
| Setting range | 4-phase AC(L-N) | 4x0…120V |
| 1-phase AC(L-L) | 1x0…240V | |
| DC(L-N) | 3x…±160V | |
| Power | 4-phase AC(L-N) | 4x80VA at 120V |
| 1-phase AC(L-L) | 1x100VA at 240V | |
| DC(L-N) | 3x70VA at 160V | |
| Accuracy | AC: ≤0.2% | |
| DC: ≤0.5% | ||
Auxiliary DC Supply
| Voltage range | 110V/220V(max.1.5A) |
| Power | max.165VA/330VA |
Binary Inputs
| Number | 8 |
| Input characteristics | idle contact or potential-free contact |
| Threshold characteristics | “0”:0~6V; “1”:11V~250V |
| Max. measuring time | 0.1ms~9999s |
| Time accuracy | 0.1ms |
Binary Outputs
| Number | 4 |
| Type | idle contact |
| Break capacity | 220VAC/0.5A, 220VDC/0.2A |
General Generators
| Frequency | range: 0~1000Hz(PC mode), 20~300Hz(local mode) |
| accuracy:<10mHz(0~450Hz),<20mHz(450~1000Hz) | |
| resolution: 0.01Hz | |
| Phase | range: 0~360° |
| accuracy: 0.2° | |
| resolution: 0.1° | |
| Harmonic | superposition orders: 1~20(PC mode), 1~6(local mode), |
| distortion: ≤0.5% |
Power Supply
| Nominal input voltage | AC 220V/230V±10%, 1-phase |
| Nominal frequency | 50/60 Hz |
| Rated current | 10A at 230V |
| Connection | standard AC socket (IEC 60320) |
Miscellaneous
| Weight | 22kg(48.50 lb) |
| Dimensions (W x H x D, without handle) | 400×300×180mm(15.75x11.81x7.09 in) |
| Connection port | for PC connection |
The Basic Three-phase Protection Relay Test Set HME-702 is the ideal basic relay testing device for all power facilities, power plants, relay manufactures, panel manufactures, research institutes, universities, and testing companies etc.